ncc2022-volume-one-20230501b.pdf

Volume One Building Code of Australia 2022  Preface Copyright and Licence Notice © Commonwealth of Australia and the States and Territories of Australia 2022, published by the Australian Building Codes Board The material i...

Volume One Building Code of Australia 2022  Preface Copyright and Licence Notice © Commonwealth of Australia and the States and Territories of Australia 2022, published by the Australian Building Codes Board The material in this publication is licensed under a Creative Commons Attribution-NoDerivatives - 4.0 International licence, with the exception of: any third party material any trade marks, and any images or photographs. You may not make derivatives of this publication, but may only use a verbatim copy. More information on this CC BY ND license is set out at the Creative Commons Website. Enquiries about this publication can be sent to: Australian Building Codes Board GPO Box 2013, Canberra ACT 2601 Phone: 1300 134 631 Email: [email protected] Web: abcb.gov.au Attribution Use of all or part of this publication must include the following attribution: © Commonwealth of Australia and the States and Territories 2022, published by the Australian Building Codes Board. Disclaimer By accessing or using this publication, you agree to the following: While care has been taken in the preparation of this publication, it may not be complete or up-to-date. You can ensure that you are using a complete and up-to-date version by checking the Australian Building Codes Board website (abcb.gov.au). The Australian Building Codes Board, the Commonwealth of Australia and States and Territories of Australia do not accept any liability, including liability for negligence, for any loss (howsoever caused), damage, injury, expense or cost incurred by any person as a result of accessing, using or relying upon this publication, to the maximum extent permitted by law. No representation or warranty is made or given as to the currency, accuracy, reliability, merchantability, fitness for any purpose or completeness of this publication or any information which may appear on any linked websites, or in other linked information sources, and all such representations and warranties are excluded to the extent permitted by law. This publication is not legal or professional advice. Persons rely upon this publication entirely at their own risk and must take responsibility for assessing the relevance and accuracy of the information in relation to their particular circumstances. NCC 2022 Volume One - Building Code of Australia (1 May 2023) Page 2  Preface General table of contents Preface Copyright and Licence Notice...................................................................................... 2 Introduction to the National Construction Code (NCC)..............................................9 Introduction to NCC Volume One................................................................................ 11 List of NCC Specifications.......................................................................................... 12 History of adoption of NCC Volume One................................................................... 14 List of amendments - NCC 2022 Volume One..........................................................23 Section A Governing requirements Part A1 Interpreting the NCC................................................................................................... 41 Part A2 Compliance with the NCC.......................................................................................... 44 Part A3 Application of the NCC in States and Territories......................................................48 Part A4 Referenced documents.............................................................................................. 49 Part A5 Documentation of design and construction..............................................................51 Part A6 Building classification................................................................................................ 58 Part A7 United buildings.......................................................................................................... 70 Specification 1 Fire-resistance of building elements......................................................................... 72 Specification 2 Descriptions of elements referred to in Specification 1............................................78 Specification 3 Fire hazard properties................................................................................................ 84 Section B Structure Part B1 Structural provisions.................................................................................................. 86 Specification 4 Design of buildings in cyclonic areas........................................................................ 96 Section C Fire resistance Part C1 Fire resistance........................................................................................................... 101 Part C2 Fire resistance and stability..................................................................................... 108 Part C3 Compartmentation and separation.......................................................................... 116 Part C4 Protection of openings............................................................................................. 124 Specification 5 Fire-resisting construction....................................................................................... 131 Specification 6 Structural tests for lightweight construction..........................................................149 Specification 7 Fire hazard properties.............................................................................................. 153 Specification 8 Performance of external walls in fire....................................................................... 158 Specification 9 Cavity barriers for fire-protected timber................................................................. 160 Specification 10 Fire-protected timber............................................................................................... 162 Specification 11 Smoke-proof walls in health-care and residential care buildings..........................164 Specification 12 Fire doors, smoke doors, fire windows and shutters..............................................166 Specification 13 Penetration of walls, floors and ceilings by services..............................................168 NCC 2022 Volume One - Building Code of Australia (1 May 2023) Page 3  Preface Section D Access and egress Part D1 Access and egress.................................................................................................... 174 Part D2 Provision for escape................................................................................................. 183 Part D3 Construction of exits................................................................................................ 196 Part D4 Access for people with a disability.......................................................................... 212 Specification 14 Non-required stairways, ramps and escalators......................................................221 Specification 15 Braille and tactile signs............................................................................................ 223 Specification 16 Accessible water entry/exit from swimming pools.................................................225 Section E Services and equipment Part E1 Fire fighting equipment............................................................................................ 233 Part E2 Smoke hazard management.................................................................................... 242 Part E3 Lift installations........................................................................................................ 253 Part E4 Visibility in an emergency, exit signs and warning systems..................................261 Specification 17 Fire sprinkler systems.............................................................................................. 266 Specification 18 Class 2 and 3 buildings not more than 25 m in effective height............................269 Specification 19 Fire control centres.................................................................................................. 272 Specification 20 Smoke detection and alarm systems...................................................................... 275 Specification 21 Smoke exhaust systems.......................................................................................... 280 Specification 22 Smoke-and-heat vents............................................................................................ 284 Specification 23 Residential fire safety systems................................................................................ 285 Specification 24 Lift installations........................................................................................................ 289 Specification 25 Photoluminescent exit signs.................................................................................... 291 Section F Health and amenity Part F1 Surface water management, rising damp and external waterproofing.................297 Part F2 Wet areas and overflow protection......................................................................... 303 Part F3 Roof and wall cladding............................................................................................. 306 Part F4 Sanitary and other facilities.................................................................................... 312 Part F5 Room heights............................................................................................................ 329 Part F6 Light and ventilation................................................................................................. 332 Part F7 Sound transmission and insulation......................................................................... 339 Part F8 Condensation management.................................................................................... 345 Specification 26 Waterproofing and water-resistance requirements for building elements in wet areas......................................................................................................................... 349 Specification 27 Accessible adult change facilities........................................................................... 352 Specification 28 Sound insulation for building elements................................................................... 359 Specification 29 Impact sound – test of equivalence......................................................................... 374 Section G Ancillary provisions Part G1 Minor structures and components.......................................................................... 379 NCC 2022 Volume One - Building Code of Australia (1 May 2023) Page 4  Preface Part G2 Boilers, pressure vessels, heating appliances, fireplaces, chimneys and flues...384 Part G3 Atrium construction................................................................................................. 387 Part G4 Construction in alpine areas.................................................................................... 389 Part G5 Construction in bushfire prone areas...................................................................... 393 Part G6 Occupiable outdoor areas....................................................................................... 399 Part G7 Livable housing design............................................................................................. 401 Specification 30 Installation of boilers and pressure vessels...........................................................403 Specification 31 Fire and smoke control systems in buildings containing atriums..........................405 Specification 43 Bushfire protection for certain Class 9 buildings....................................................412 Section I Special use buildings Part I1 Class 9b buildings.................................................................................................... 418 Part I2 Public transport buildings....................................................................................... 420 Part I3 Farm buildings and farm sheds............................................................................... 423 Specification 32 Construction of proscenium walls........................................................................... 427 Section J Energy efficiency Part J1 Energy efficiency performance requirements........................................................433 Part J2 Energy efficiency..................................................................................................... 439 Part J3 Elemental provisions for a sole-occupancy unit of a Class 2 building or a Class 4 part of a building....................................................................................................... 441 Part J4 Building fabric........................................................................................................... 471 Part J5 Building sealing........................................................................................................ 476 Part J6 Air-conditioning and ventilation............................................................................. 479 Part J7 Artificial lighting and power.................................................................................... 493 Part J8 Heated water supply and swimming pool and spa pool plant...............................501 Part J9 Energy monitoring and on-site distributed energy resources...............................504 Specification 33 Additional requirements.......................................................................................... 508 Specification 34 Modelling parameters for J1V3................................................................................ 510 Specification 35 Modelling profiles for J1V3...................................................................................... 514 Specification 36 Material properties................................................................................................... 526 Specification 37 Calculation of U-Value and solar admittance..........................................................531 Specification 38 Spandrel panel thermal performance...................................................................... 535 Specification 39 Sub-floor and soil thermal performance................................................................. 537 Specification 40 Lighting and power control devices........................................................................ 539 Specification 44 Calculation of heating load limit, cooling load limit and thermal energy load limit542 Specification 45 Modelling profiles for J1V5...................................................................................... 545 Schedule 1 Definitions Abbreviations........................................................................................................... 559 Symbols..................................................................................................................... 561 NCC 2022 Volume One - Building Code of Australia (1 May 2023) Page 5  Preface Glossary.................................................................................................................... 563 Schedule 2 Referenced documents Referenced documents............................................................................................ 599 Schedule 3 Commonwealth of Australia Footnote: Other legislation and policies affecting buildings..................................617 Schedule 4 Australian Capital Territory ACT Introduction.............................................................................................................. 623 ACT Footnote: Other legislation affecting buildings......................................................624 Schedule 5 New South Wales NSW Introduction.............................................................................................................. 632 Section A Governing requirements.......................................................................................... 633 Section C Fire resistance.......................................................................................................... 634 Section D Access and egress................................................................................................... 639 Section E Services and equipment.......................................................................................... 646 Section F Health and amenity.................................................................................................. 650 Section G Ancillary provisions.................................................................................................. 652 Section I Special use buildings............................................................................................... 656 NSW Part I4 Entertainment venues other than temporary structures and drive-in theatres....657 NSW Part I5 Temporary structures.............................................................................................. 669 NSW Part I6 Drive-in theatres...................................................................................................... 673 Section J Energy efficiency...................................................................................................... 674 NSW Part J1 Energy efficiency..................................................................................................... 686 Schedule 1 Definitions................................................................................................................ 692 Schedule 2 Referenced documents............................................................................................ 694 NSW Footnote: Other legislation affecting buildings......................................................696 Schedule 6 Northern Territory NT Introduction.............................................................................................................. 704 Section B Structure................................................................................................................... 705 Section E Services and equipment.......................................................................................... 708 Section F Health and amenity.................................................................................................. 709 NT Part F7 Sound transmission and insulation.......................................................................... 712 Section G Ancillary provisions.................................................................................................. 716 Section J Energy efficiency...................................................................................................... 717 Schedule 2 Referenced documents............................................................................................ 718 NT Footnote: Other legislation affecting buildings.......................................................719 Schedule 7 Queensland QLD Introduction.............................................................................................................. 723 NCC 2022 Volume One - Building Code of Australia (1 May 2023) Page 6  Preface Section B Structure................................................................................................................... 724 Section G Ancillary provisions.................................................................................................. 727 Schedule 1 Definitions................................................................................................................. 729 Schedule 2 Referenced documents............................................................................................ 730 QLD Footnote: Other legislation affecting buildings.......................................................731 Schedule 8 South Australia SA Introduction.............................................................................................................. 735 Section A Governing requirements.......................................................................................... 736 Section B Structure................................................................................................................... 737 Section C Fire resistance.......................................................................................................... 738 Section D Access and egress................................................................................................... 740 Section E Services and equipment.......................................................................................... 744 Section F Health and amenity.................................................................................................. 749 Section G Ancillary provisions.................................................................................................. 753 SA Part G8 Access for maintenance........................................................................................... 755 SA Part G9 Miscellaneous provisions......................................................................................... 757 Section I Special use buildings............................................................................................... 758 SA Part I3 Farm buildings.......................................................................................................... 759 Schedule 1 Definitions................................................................................................................. 760 Schedule 2 Referenced documents............................................................................................ 762 SA Footnote: Other legislation affecting buildings......................................................763 Schedule 9 Tasmania TAS Introduction.............................................................................................................. 774 Section A Governing requirements........................................................................................... 775 Section D Access and egress................................................................................................... 777 Section E Services and equipment.......................................................................................... 778 Section F Health and amenity.................................................................................................. 779 Section G Ancillary provisions.................................................................................................. 780 Section I Special use buildings............................................................................................... 784 TAS Part I4 Food premises.......................................................................................................... 785 TAS Part I5 Dining rooms and bar rooms.................................................................................... 795 TAS Part I6 Meat premises.......................................................................................................... 796 TAS Part I7 Farm dairy premises................................................................................................. 797 TAS Part I8 Pharmacies............................................................................................................... 799 TAS Part I9 Health service establishments................................................................................ 801 TAS Part I10 Mortuaries................................................................................................................ 802 TAS Part I11 Foundries.................................................................................................................. 804 TAS Part I12 Premises for manufacture or processing of glass reinforced plastics..................806 NCC 2022 Volume One - Building Code of Australia (1 May 2023) Page 7  Preface TAS Part I13 Premises for production of processing of isocyanates..........................................808 TAS Part I14 Premises for electro-plating, electro-polishing, anodising or etching..................810 TAS Part I15 Premises for lead processing................................................................................... 811 TAS Part I16 Early childhood centres and school age care facilities...........................................813 TAS Part I18 Temporary structures............................................................................................... 815 TAS Part I17 Premises where work is undertaken on gas-fuelled vehicles...............................820 Section J Energy efficiency...................................................................................................... 821 Schedule 1 Definitions................................................................................................................. 822 Schedule 2 Referenced documents............................................................................................ 823 TAS Footnote: Other legislation affecting buildings......................................................827 Schedule 10 Victoria VIC Introduction.............................................................................................................. 830 Section A Governing requirements........................................................................................... 831 Section B Structure................................................................................................................... 832 Section C Fire resistance.......................................................................................................... 833 Section D Access and egress................................................................................................... 834 Section E Services and equipment.......................................................................................... 835 Section F Health and amenity.................................................................................................. 838 Section G Ancillary provisions.................................................................................................. 841 Section I Special use buildings............................................................................................... 845 VIC Part I4 Class 3 and 9a residential aged care buildings and Class 9c buildings................846 VIC Part I5 Places of public entertainment............................................................................... 848 VIC Part I6 Class 9b children’s services..................................................................................... 851 Schedule 1 Definitions................................................................................................................. 852 Schedule 2 Referenced documents............................................................................................ 854 VIC Footnote: Other legislation affecting buildings......................................................860 Schedule 11 Western Australia WA Introduction.............................................................................................................. 867 Section B Structure................................................................................................................... 868 WA Part B2 Changes to AS/NZS 1170.2:2021............................................................................. 873 Section I Special use buildings............................................................................................... 876 WA Part I4 Public buildings........................................................................................................ 877 Schedule 1 Definitions................................................................................................................. 879 Schedule 2 Referenced documents............................................................................................ 880 WA Footnote: Other legislation affecting buildings.......................................................881 NCC 2022 Volume One - Building Code of Australia (1 May 2023) Page 8  Preface Introduction to the National Construction Code (NCC) About the NCC The NCC is Australia’s primary set of technical design and construction provisions for buildings. As a performance-based code, it sets the minimum required level for the safety, health, amenity, accessibility and sustainability of certain buildings. It primarily applies to the design and construction of new buildings, and plumbing and drainage systems in new and existing buildings. In some cases it may also apply to structures associated with buildings and new building work or new plumbing and drainage work in existing buildings. The Australian Building Codes Board (ABCB), on behalf of the Australian Government and each State and Territory government, produces and maintains the NCC. When determining the content of the NCC, the ABCB seeks to— ensure requirements have a rigorously tested rationale; and effectively and proportionally address applicable issues; and create benefits to society that outweigh costs; and consider non-regulatory alternatives; and consider the competitive effects of regulation; and not be unnecessarily restrictive. The primary users of the NCC include architects, builders, plumbers, building surveyors, hydraulic consultants, engineers and other building and plumbing related professions and trades. Format of the NCC The NCC is published in three volumes. The Building Code of Australia (BCA) is Volumes One and Two of the NCC and the Plumbing Code of Australia (PCA) is Volume Three of the NCC. Components of the NCC The NCC provides the technical provisions for the design and construction of buildings and other structures, and plumbing and drainage systems. NCC Volume One primarily covers the design and construction of multi-residential, commercial, industrial and public assembly buildings and some associated structures. NCC Volume Two primarily covers the design and construction of smaller scale buildings including houses, small sheds, carports and some associated structures. NCC Volume Three covers the design, construction and maintenance of plumbing and drainage systems in new and existing buildings. Each volume contains— Governing Requirements; and Performance Requirements; and compliance options to meet the NCC requirements; and State and Territory variations and additions. The NCC uses building classifications to identify requirements for different intended purposes of buildings or parts of buildings. A building classification relates to the characteristics and the intended use of the building. Information on building classifications is found in Part A6 of the Governing Requirements. Legislative arrangements and the NCC The NCC is given legal effect through State and Territory, or other statutory authority, building and plumbing legislation. These Acts and Regulations set out the legal framework and administration mechanisms for the NCC to support the design and construction of buildings. NCC 2022 Volume One - Building Code of Australia (1 May 2023) Page 9  Preface The dates of adoption of the NCC are determined by State and Territory building and plumbing administrations. How to use the NCC Each volume of the NCC is split into two main sections: Administrative requirements contained within the Governing Requirements. Technical requirements contained within the remaining sections of the NCC. The Governing Requirements provide the rules and instructions for using and complying with the NCC. They are vital in understanding how the technical requirements of the NCC should be applied to any particular situation. The Governing Requirements are also important in understanding how the NCC fits with the building and plumbing regulatory framework within Australia. NCC clause numbering system The NCC uses a uniform clause numbering system across each of its three volumes. This system is called Section-Part- Type-Clause (SPTC). In each clause number— The first letter indicates which NCC Section sits within, or if the letter S is used, that the clause is part of a Specification. The letter S is used in place of a Section indicator because the same Specification may be called up in several different Sections of the NCC. The first number indicates the number of each Part within a Section, or the number of a Specification. Parts are numbered sequentially within each Section, starting at 1. Specifications are numbered sequentially across all three volumes, also starting at 1. The second letter indicates the clause Type. It will be G, O, F, P, V, D or C and these are explained below. The second number is the clause number within each Part or Specification. The clause Types used in the NCC are as follows: G = Governing requirement (mandatory) O = Objective (guidance) F = Functional Statement (guidance) P = Performance Requirement (mandatory) V = Verification Method (optional) D = Deemed-to-Satisfy Provision (optional) C = Clause in a Specification (clauses in Specifications may be mandatory or optional, depending on how the Specification is called up by the NCC). Informative parts of the NCC (e.g. Introduction to the NCC) are not numbered and do not have numbered paragraphs. This helps make it easy to see that their content is information only and does not contain any regulatory requirements. NCC 2022 Volume One - Building Code of Australia (1 May 2023) Page 10  Preface Introduction to NCC Volume One About NCC Volume One NCC Volume One contains technical design and construction requirements for all Class 2 to 9 buildings (multi-residential, commercial, industrial, and public assembly buildings) and their associated structures. NCC Volume One contains the requirements for— all Class 2 to 9 buildings; and access requirements for people with a disability in Class 1b and 10a buildings; and certain Class 10b structures including access requirements for people with a disability in Class 10b swimming pools. Components of NCC Volume One NCC Volume One contains the following Sections: Section A – Governing Requirements Section B – Structure Section C – Fire resistance Section D – Access and egress Section E – Services and equipment Section F – Health and amenity Section G – Ancillary provisions Section I – Special use buildings Section J – Energy efficiency Schedules— ◾ Abbreviations and symbols ◾ Definitions ◾ Referenced documents ◾ State and Territory variations and additions Section A contains the mandatory Governing Requirements for the NCC. Sections B to G and I to J contain the mandatory Performance Requirements and the pathways that can be used to comply with the NCC. There is no Section H in NCC Volume One because the letter ‘H’ is used in NCC Volume Two. This avoids number clashes between NCC Volume One and NCC Volume Two. NCC 2022 Volume One - Building Code of Australia (1 May 2023) Page 11  Preface List of NCC Specifications Table 1 sets out the number and title of each NCC Specification, along with the clauses in each NCC Volume that refer to the Specification. Table 1: List of NCC Specifications Spec Title References no. Vols. One, Two and Housing Vol. Three Provisions 1 Fire resistance of building elements A5G5; A5G6; C4D15; S2C1; A5G5; A5G6 S9C2 2 Description of materials referred to in Specification 1 A5G5; A5G6; C4D15; S1C2; A5G5; A5G6 S9C2 3 Fire hazard properties (determination) A5G6 A5G6 4 Design of buildings in cyclonic areas B1D3 - 5 Fire-resisting construction C2D2; C2D10; C3D6; C3D8; - C3D9; C3D10; C3D11; C3D13; C4D6; C4D8; C4D13; C4D15; D2D13; E1D5; G3D6; S17C11; S18C4; S31C3 6 Structural tests for lightweight construction B1D4; C2D9; S5C23; S14C2; - S32C2; S32C3; Housing Provisions 9.3.1 7 Fire hazard properties (requirements) C2D11; C2D14; S3C2; - S14C2; S19C7; S32C6 8 Performance of external walls in fire C2D12 - 9 Cavity barriers for fire-protected timber C2D13; C4D16; S5C11; - S5C20 10 Fire protected timber S1C2 - 11 Smoke-proof walls in health-care and residential care C3D6; C3D15; C4D12; - buildings E2D11 12 Fire doors, smoke doors, fire windows and shutters C4D5; G3D4; S11C2; S11C3 - 13 Penetration of walls, floors and ceilings by services C4D15 - 14 Non-required stairways, ramps and escalators C2D11; D2D17 - 15 Braille and tactile signs D4D7; S27C10 - 16 Accessible water entry/exit for swimming pools D4D11 - 17 Fire sprinkler systems C1V3; C2D6; C2D13; C3D2; - C3D4; C3D7; C3D8; C4D6; C4D7; C4D8; C4D9; C4D12; D2D4; D2D17; E1D4; E2D8; E2D9; E2D10; E2D11; E2D13; E2D14; E2D15; E2D16; E2D17; E2D19; E2D20; G3D1; G3D6; G6D6; I1D2; S5C10; S5C11; S5C14; S5C18; S5C19; S5C20; S5C21; S5C22; S5C24; S7C3; S7C4; S19C11; S20C3; S20C4; S20C5; S31C2 NCC 2022 Volume One - Building Code of Australia (1 May 2023) Page 12  Preface Spec Title References no. Vols. One, Two and Housing Vol. Three Provisions 18 Class 2 and 3 buildings not more than 25 m in effective E1D4; S17C2; S23C1; - height S23C3 19 Fire control centres E1D14 - 20 Smoke detection and alarm systems E2D3; E2D5; E2D7; E2D8; - E2D9; E2D11; E2D13; E2D14; E2D15; E2D16; E2D17; E2D18; E2D19; E2D20; S5C19; S5C22; S17C8; S18C3; S21C7; S21C8; S22C3 21 Smoke exhaust systems C3D13; E2D10; E2D14; - E2D15; E2D16; E2D17; E2D18; E2D19; E2D20; S20C6; S20C8 22 Smoke-and-heat vents E2D10; E2D14; E2D15; - E2D16; E2D17; E2D18; E2D19; E2D20; S20C8 23 Residential fire safety systems S18C3; S18C4 - 24 Lift installations E3D2 - 25 Photoluminescent exit signs E4D8 - 26 Waterproofing and water resistance requirements for F1D6 - building elements in wet areas 27 Accessible adult change facilities F4D12; S15C1 - 28 Sound insulation for building elements F5D3; F5D4 - 29 Impact sound — Test of equivalence F5D4; S28C2 - 30 Installation of boilers and pressure vessels G2D2 - 31 Fire and smoke control in buildings containing atriums G3D4; G3D8; S14C2 - 32 Construction of proscenium walls C2D11; I1D3 - 33 Additional requirements J1V1; J1V2; J1V3; J1V5 - 34 Modelling parameters J1V3; S35C1 - 35 Modelling profiles S34C3 - 36 Material properties J4D3 - 37 Calculation of U-Value and solar admittance J3D9; J3D13; J4D3; J4D6 - 38 Spandrel panel thermal performance S37C3; S37C4 - 39 Sub-floor thermal performance J4D3 - 40 Lighting and power control devices J7D3; J7D4; J7D5; J7D6; - J7D7 41 Cross-connection hazards - B5D2; B5D3; B5D4 42 House energy rating software H6D2 - 43 Bushfire protection for certain Class 9 buildings G5D4 - 44 Calculation of heating load limit, cooling load limit and J1P2; H6P1 - thermal energy load limit 45 Modelling profiles for J1V5 J1V5 - NCC 2022 Volume One - Building Code of Australia (1 May 2023) Page 13  Preface History of adoption of NCC Volume One Adoption of NCC Volume One The adoption of each edition of NCC Volume One (also referred to as BCA Volume One) is set out in Table 1. Table 1: History of adoption of NCC Volume One Edition Commonwe ACT NSW NT QLD SA TAS VIC WA alth BCA 96 1 Jul 1997 1 Jul 1 Jul 7 Jan 1 Jul 1 Jan 1 Jul 1 Aug 1 Jul 1997 1997 1998 1997 1998 1997 1997 1997 BCA 96 Amdt 1 Jul 1997 1 Jul 1 Jul 7 Jan 1 Jul 1 Jan 1 Jul 1 Aug 1 Jul 1 1997 1997 1998 1997 1998 1997 1997 1997 BCA 96 Amdt 1 Jan 1998 1 Jan 27 Feb 7 Jan 1 Jan 1 Jan 1 Jan 1 Jan 1 Jan 2 1998 1998 1998 1998 1998 1998 1998 1998 BCA 96 Amdt 1 Jul 1998 1 Jul 1 Jul 1 Jul 1 Jul 13 Jul 1 Jul 1 Jul 1 Jul 3 1998 1998 1998 1998 1998 1998 1998 1998 BCA 96 Amdt 1 Jan 1999 17 May 1 Feb 1 Jan 1 Jan 1 Jan 1 Jan 1 Jan 1 Jan 4 1999 1999 1999 1999 1999 1999 1999 1999 BCA 96 Amdt 1 Jul 1999 3 Nov 1 Aug 1 Jul 1 Jul 1 Jul 1 Jul 1 Jul 1 Jul 5 1999 1999 1999 1999 1999 1999 1999 1999 BCA 96 Amdt 1 Jan 2000 10 Feb 1 Jan 1 Jan 1 Jan 17 Jan 1 Jan 1 Jan 1 Jan 6 2000 2000 2000 2000 2000 2000 2000 2000 BCA 96 Amdt 1 Jul 2000 10 Jul 1 Jul 1 Jul 1 Jul 1 Jul 1 Jul 1 Jul 1 Jul 7 2000 2000 2000 2000 2000 2000 2000 2000 BCA 96 Amdt 1 Jan 2001 11 Jan 1 Jan 1 Jan 1 Jan 1 Jan 1 Jan 1 Jan 1 Jan 8 2001 2001 2001 2001 2001 2001 2001 2001 BCA 96 Amdt 1 Jul 2001 12 Jul 1 Jul 1 Jul 1 Jul 2 Jul 1 Jul 1 Jul 1 Jul 9 2001 2001 2001 2001 2001 2001 2001 2001 BCA 96 Amdt 1 Jan 2002 1 Jan 1 Jan 1 Jan 1 Jan 1 Jan 1 Jan 1 Jan 1 Jan 10 2002 2002 2002 2002 2002 2002 2002 2002 BCA 96 Amdt 1 Jul 2002 1 Jul 1 Jul 1 Jul 1 Jul 1 Jul 1 Jul 1 Jul 1 Jul 11 2002 2002 2002 2002 2002 2002 2002 2002 BCA 96 Amdt 1 Jan 2003 1 Jan 1 Jan 1 Jan 1 Jan 1 Jan 1 Jan 1 Jan 1 Jan 12 2003 2003 2003 2003 2003 2003 2003 2003 BCA 96 Amdt 1 Jul 2003 1 Jul 1 Jul 1 Jul 1 Jul 1 Jul To Be 1 Jul 1 Jul 13 2003 2003 2003 2003 2003 advised 2003 2003 BCA 2004 1 May 2004 1 May 1 May 1 May 1 May 1 May 1 May 1 May 1 May 2004 2004 2004 2004 2004 2004 2004 2004 BCA 2005 1 May 2005 1 May 1 May 1 May 1 May 1 May 1 May 1 May 1 May 2005 2005 2005 2005 2005 2005 2005 2005 BCA 2006 1 May 2006 1 May 01 May 1 May 1 May 1 May 1 May 1 May 1 May 2006 2006 2006 2006 2006 2006 2006 2006 BCA 2007 1 May 2007 1 May 1 May 1 May 1 May 1 May 1 May 1 May 1 May 2007 2007 2007 2007 2007 2007 2007 2007 BCA 2008 1 May 2008 1 May 1 May 1 May 1 May 1 May 1 May 1 May 1 May 2008 2008 2008 2008 2008 2008 2008 2008 BCA 2009 1 May 2009 1 May 1 May 1 May 1 May 1 May 1 May 1 May 1 May 2009 2009 2009 2009 2009 2009 2009 2009 NCC 2022 Volume One - Building Code of Australia (1 May 2023) Page 14  Preface Edition Commonwe ACT NSW NT QLD SA TAS VIC WA alth BCA 2010 1 May 2010 1 May 1 May 1 May 1 May 1 May 1 May 1 May 1 May 2010 2010 2010 2010 2010 2010 2010 2010 NCC 2011 1 May 2011 1 May 1 May 1 May 1 May 1 May 1 May 1 May 1 May 2011 2011 2011 2011 2011 2011 2011 2011 NCC 2012 1 May 2012 1 May 1 May 1 May 1 May 1 May 1 May 1 May 1 May 2012 2012 2012 2012 2012 2012 2012 2012 NCC 2013 1 May 2013 1 May 1 May 1 May 1 May 1 May 1 May 1 May 1 May 2013 2013 2013 2013 2013 2013 2013 2013 NCC 2014 1 May 2014 1 May 1 May 1 May 1 May 1 May 1 May 1 May 1 May 2014 2014 2014 2014 2014 2014 2014 2014 NCC 2015 1 May 2015 1 May 1 May 1 May 1 May 1 May 1 May 1 May 1 May 2015 2015 2015 2015 2015 2015 2015 2015 NCC 2016 1 May 2016 1 May 1 May 1 May 1 May 1 May 1 May 1 May 1 May 2016 2016 2016 2016 2016 2016 2016 2016 NCC 2016 12 Mar 12 Mar 12 Mar 12 Mar 12 Mar 12 Mar 12 Mar 12 Mar 12 Mar Amendment 1 2018 2018 2018 2018 2018 2018 2018 2018 2018 NCC 2019 1 May 2019 1 June 1 May 1 May 1 May 1 May 1 May 1 May 1 May 2019 2019 2019 2019 2019 2019 2019 2019 NCC 2019 1 Jul 2020 1 Jul 1 Jul 1 Jul 1 Jul 1 Jul 1 Jul 1 Jul 1 Jul Amendment 1 2020 2020 2020 2020 2020 2020 2020 2020 NCC 2022 1 May 2023 1 May 1 May 1 May 1 May 1 May 1 May 1 May 1 May 2023 2023 2023 2023 2023 2023 2023 2023 Table Notes (1) 1 May 2006 (except that the date for mandatory compliance with Section J provisions for Class 5 to 9 buildings is 1 November 2006) (2) 1 May 2006, except for Part I2 and Section J which were adopted on 1 August 2006. (3) 1 May 2010 except for Section J, which was adopted on 1 September 2010, and the restriction on child resistant door sets in G1.1 and the additional bushfire requirements for ‘excluded areas’ prescribed in SA G5.2(d) and (e), which were adopted on 2 December 2010. Adoption of BCA 96 Volume One The 1996 edition of the BCA Volume One was adopted as set out in Table 1. BCA 96 Amendment No. 1 Amendment No. 1 of the 1996 edition of the BCA Volume One was adopted as set out in Table 1 The purpose of Amendment No. 1 is to— correct minor typographical errors including spelling, punctuation and layout; and include reference to a Certificate of Conformity issued by the ABCB in A2.2; and change the reference to the Standards Mark Certificate to refer to JAS–ANZ in A2.2; and update references to Standards Note: Only substantive typographical corrections are noted in the margin. BCA 96 Amendment No. 2 Amendment No. 2 of the 1996 edition of the BCA Volume One was adopted as set out in Table 1 The purpose of Amendment No. 2 is to— NCC 2022 Volume One - Building Code of Australia (1 May 2023) Page 15  Preface correct minor typographical errors; and update references to Standards. BCA 96 Amendment No. 3 Amendment No. 3 of the 1996 edition of the BCA Volume One was adopted as set out in Table 1 The purpose of Amendment No. 3 is to— incorporate the outcomes of the 1997 ABCB Variations Conference; and update references to Standards; and include minor technical changes. BCA 96 Amendment No. 4 Amendment No. 4 of the 1996 edition of the BCA Volume One was adopted as set out in Table 1 The purpose of Amendment No. 4 is to— update references to Standards; and include minor technical changes. Note: Only substantive typographical corrections are noted in the margin. BCA 96 Amendment No. 5 Amendment No. 5 of the 1996 edition of the BCA Volume One was adopted as set out in Table 1 The purpose of Amendment No. 5 is to— update references to Standards; and include minor technical changes; and amend clauses to improve clarity and to reduce the possibility of differences in interpretation; and expand on the requirements for subfloor ventilation based on climatic conditions. Note: Only substantive typographical corrections are noted in the margin. BCA 96 Amendment No. 6 Amendment No. 6 of the 1996 edition of the BCA Volume One was adopted as set out in Table 1 The purpose of Amendment No. 6 is to— update references to Standards; and expand on the requirements for carparking for people with disabilities; and replace Sound Transmission Class (STC) with weighted sound reduction index (Rw) within Part F5; and include minor technical changes. Note: Only substantive typographical corrections are noted in the margin. BCA 96 Amendment No. 7 Amendment No. 7 of the 1996 edition of the BCA Volume One was adopted as set out in Table 1 The purpose of Amendment No. 7 is to— update references to Standards; and include requirements for non-required and private stairways; and include minor technical changes. Note: Only substantive typographical corrections are noted in the margin. NCC 2022 Volume One - Building Code of Australia (1 May 2023) Page 16  Preface BCA 96 Amendment No. 8 Amendment No. 8 of the 1996 edition of the BCA Volume One was adopted as set out in Table 1 The purpose of Amendment No. 8 is to—update references to Standards; and update references to Standards; and include minor technical changes; and achieve greater consistency between both Volumes of the BCA for stairway construction. Note: Only substantive typographical corrections are noted in the margin. BCA 96 Amendment No. 9 Amendment No. 9 of the 1996 edition of the BCA Volume One was adopted as set out in Table 1 The purpose of Amendment No. 9 is to— update references to Standards; and include minor technical changes; and clarify which glazed assemblies must comply with AS 2047 and which must comply with AS 1288. Note: Only substantive typographical corrections are noted in the margin. BCA 96 Amendment No. 10 Amendment No. 10 of the 1996 edition of the BCA Volume One was adopted as set out in Table 1 The purpose of Amendment No. 10 is to— update references to Standards; and clarify that windows must comply with AS 2047 for resistance to water penetration; and subject to certain conditions, allow a non-fire-isolated stairway to connect an additional storey; and update signage required for people with disabilities, including the need for signs to contain Braille and tactile information; and include minor technical changes. Note: Only substantive typographical corrections are noted in the margin. BCA 96 Amendment No. 11 Amendment No. 11 of the 1996 edition of the BCA Volume One was adopted as set out in Table 1 The purpose of Amendment No. 11 is to— update references to Standards; and transfer public policy matters, with respect to structural adequacy, from the AS 1170 series to the BCA; and introduce Class 7a, 7b and 9c classifications; and update the provisions for residential buildings used for the accommodation of the aged to align with the Commonwealth Aged Care Act, 1997; and include minor technical changes. Note: Only substantive typographical corrections are noted in the margin. BCA 96 Amendment No. 12 Amendment No. 12 of the 1996 edition of the BCA Volume One was adopted as set out in Table 1 The purpose of Amendment No. 12 is to— update references to Standards; and apply the swimming pool safety provisions to swimming pools associated with Class 4 parts as well as Class 2 and 3 NCC 2022 Volume One - Building Code of Australia (1 May 2023) Page 17  Preface buildings; and allow the use of either the 1989 editions or the 2002 editions of the 1170 series of standards; and include minor technical changes. Note: Only substantive typographical corrections are noted in the margin. BCA 96 Amendment No. 13 Amendment No. 13 of the 1996 edition of the BCA Volume One was adopted as set out in Table 1 The purpose of Amendment No. 13 is to— update references to Standards; and reform the provisions for fire hazard properties of materials; and revise a requirement for the use of non-combustible materials; and include additional requirements for the protection of electrical switchboards which sustain electricity supply to emergency equipment; and include minor changes to the requirements for aged care buildings; and include minor technical changes. Note: Only substantive typographical corrections are noted in the margin. Adoption of BCA 2004 Volume One The 2004 edition of the BCA Volume One was adopted as set out in Table 1. The purpose of BCA 2004 Volume One is to— update references to Standards; and update references from BCA 96 to BCA 2004; and include a Performance Requirement considering human impact with glazing; and reform the provisions for sound insulation; and reform the maintenance provisions; and include minor technical changes. Adoption of BCA 2005 Volume One The 2005 edition of the BCA Volume One was adopted as set out in Table 1. The purpose of BCA 2005 Volume One is to— update references to Standards; and clarify when fire sprinklers are required to be installed in buildings; and update the provisions for waterproofing of wet areas; and include energy efficiency measures for Class 2 and 3 buildings and Class 4 parts; and more closely align the requirements for lifts with those of Occupational Health and Safety legislation; and include minor technical changes. Adoption of BCA 2006 Volume One The 2006 edition of the BCA Volume One was adopted as set out in Table 1. The purpose of BCA 2006 Volume One is to— update schedule of referenced documents; and include a national testing regime for cladding in cyclonic areas; and withdraw of AS 1530.3 tests on floor materials and floor coverings and wall and ceiling linings; and NCC 2022 Volume One - Building Code of Australia (1 May 2023) Page 18  Preface include energy efficiency measures for Class 5 to 9 buildings; and include minor technical changes. Adoption of BCA 2007 Volume One The 2007 edition of the BCA Volume One was adopted as set out in Table 1. The purpose of BCA 2007 Volume One is to— update references to other documents; and update energy efficiency provisions including providing additional information; and include minor technical changes. Adoption of BCA 2008 Volume One The 2008 edition of the BCA Volume One was adopted as set out in Table 1. The purpose of BCA 2008 Volume One is to— update references to other documents; and due to changes in the types of detector now available, rather than only allowing the use of a heat detectors when smoke detector would be unsuitable in the atmosphere, to allow the use of any type of detector deemed suitable by AS 1670.1; and clarify the intent of the BCA when a service penetrates a building element required to have an FRL; and amend the requirements for door handle heights to be consistent with AS 1428.1; and align some BCA terms with current industry terminology; and include lists of other Commonwealth, State and Territory legislation affecting buildings; and include suitable provisions for swimming pool water recirculation systems; and include minor technical changes. Adoption of BCA 2009 Volume One The 2009 edition of the BCA Volume One was adopted as set out in Table 1. The purpose of BCA 2009 Volume One is to— update references to other documents; and after expiry of the agreed transition period, except for the 1993 edition of AS 1170.4, delete all references to the older loading standards contained in the AS 1170 series and consequently, all provisions referring to them; and clarify the application of the vertical separation provisions; and clarify the intent of separation of equipment; and simplify the wire balustrade provisions, including the addition of a Verification Method; and clarify the provisions for the construction of sanitary compartments to enable an unconscious occupant to be removed; and clarify the height of rooms in an attic and with a sloping ceiling; and further update the energy efficiency provisions; and include minor technical changes. Adoption of BCA 2010 Volume One The 2010 edition of the BCA Volume One was adopted as set out in Table 1. The purpose of BCA 2010 Volume One is to— update references to other documents; and delete reference to the 1993 edition of AS 1170.4 and consequently all provisions referring to it; and NCC 2022 Volume One - Building Code of Australia (1 May 2023) Page 19  Preface increase the stringency of the energy efficiency provisions and, as part of reducing greenhouse gas emissions, introduce provisions for the greenhouse gas intensity of the energy source for services such as water and space heaters; and update Part G5, as a consequence of referencing the 2009 edition of AS 3959 construction in bushfire-prone areas, to include provisions which apply to a Class 10a building or deck associated with a Class 2 or 3 building located in a designated bushfire prone area; and include minor technical changes. Adoption of NCC 2011 Volume One The 2011 edition of the NCC Volume One was adopted as set out in Table 1. The purpose of NCC 2011 Volume One is to— update references to other documents; and align the NCC with the Access Code in the Disability (Access to Premises — Buildings) Standards; and restructure the fire hazard property provisions; and include minor technical changes. Adoption of NCC 2012 Volume One The 2012 edition of the NCC Volume One was adopted as set out in Table 1. The purpose of NCC 2012 Volume One is to— update references to other documents; and include revised provisions aimed at reducing slips, trips and falls in buildings; and include a Verification Method for emergency lighting; and align the NCC with changes to the National Quality Standard for early childhood education and care; and include exemptions for Class 8 electricity network substations; and include minor technical changes. Adoption of NCC 2013 Volume One The 2013 edition of the NCC Volume One was adopted as set out in Table 1. The purpose of NCC 2013 Volume One is to— update references to other documents; and include new provisions for openable windows to reduce falls in buildings; and include a Performance Requirement and reference a Standard for construction in flood hazard areas; and consolidate the building related components of the AS 1735 lift series into the BCA; and enhance the egress provisions for people with disability; and include minor technical changes. Adoption of NCC 2014 Volume One The 2014 edition of the NCC Volume One was adopted as set out in Table 1. The purpose of NCC 2014 Volume One is to— update references to other documents; and quantify slip resistance on ramps, stairways and landings; and include provisions for photoluminescent exit signs; and expand the fire-resistance concession for timber-framed construction to include Class 3 buildings; and remove the requirement for fire hose reels in a Class 2 or Class 3 building or a Class 4 part of a building; and NCC 2022 Volume One - Building Code of Australia (1 May 2023) Page 20  Preface include minor technical changes. Adoption of NCC 2015 Volume One The 2015 edition of the NCC Volume One was adopted as set out in Table 1. The purpose of NCC 2015 Volume One is to— update references to other documents; and include a Verification Method for structural reliability; and improve the usability of the barrier provisions; and expand the requirements for sprinkler protection to aged care buildings; and include a Verification Method for weatherproofing of external walls; and improve the usability of energy efficiency provisions for air-conditioning and ventilation systems. Adoption of NCC 2016 Volume One The 2016 edition of NCC Volume One was adopted as set out in Table 1. The purpose of NCC 2016 Volume One is to— update references to other documents; and amend the “Introduction” and “General Requirements” as part of the initiative to increase the use of Performance Solutions; and include new Verification Methods for structural robustness and indoor air quality; and include provisions for fire-protected timber; and include requirements for farm-type buildings; and include minor technical changes. NCC 2016 Volume One Amendment No. 1 Amendment No. 1 to the 2016 edition of NCC Volume One was adopted as set out in Table 1. The purpose of Amendment No. 1 is to— introduce a new Verification method, CV3, for limiting fire spread via external wall assemblies; and include reference to the revised edition of AS 2118.1; and clarify provisions relating to the use of external wall claddings and attachments; and revise the evidence of suitability provisions. Adoption of NCC 2019 Volume One The 2019 edition of NCC Volume One was adopted as set out in Table 1. The purpose of NCC 2019 Volume One is to— include the Governing Requirements, that result from revision of Section A to improve readability and are common to all NCC volumes; and introduce the use of schedules that are common to all NCC volumes; and include new Verification Methods, including the Fire Safety Verification Method; and clarify provisions, including provisions relating to measurement of distance between required alternative exits; and expand the requirements for sprinkler protection to residential buildings; and introduce requirements for accessible adult change facilities; and introduce requirements for management of water vapour and condensation; and introduce requirements for occupiable outdoor areas; and NCC 2022 Volume One - Building Code of Australia (1 May 2023) Page 21  Preface increase stringency of energy efficiency requirements; and update references to other documents; and include minor technical changes. NCC 2019 Amendment No. 1 Amendment No. 1 to the 2019 edition of NCC Volume One was adopted as set out in Table 1. The purpose of Amendment No. 1 is to— require that a process be followed to improve the quality of and documentation for Performance Solutions; and include a new provision regarding egress from early childhood centres; and require labelling of Aluminium Composite Panels; and clarify the concession that permits timber framing for low-rise Class 2 and 3 buildings. NCC 2022 The 2022 edition of NCC Volume One was adopted as set out in Table 1. The purpose of NCC Volume One 2022 is to— include quantified Performance Requirements; and clarify and improve provisions relating to fire performance of building elements, including external walls; and include provisions to improve fire safety for early childhood centres and primary schools; and include expanded weatherproofing and waterproofing provisions; and include bushfire protection requirements for certain Class 9 buildings; and incorporate amended energy efficiency provisions; and update references to other documents; and include other minor technical changes. NCC 2022 Volume One - Building Code of Australia (1 May 2023) Page 22  Preface List of amendments - NCC 2022 Volume One This list has been prepared by the Australian Building Codes Board to assist National Construction Code (NCC) users in identifying changes incorporated in the 2022 edition of NCC Volume One. The notes provide a description of major changes made from the previous edition of Volume One. If additional information is required to assist in understanding, interpreting or applying the provisions of the 2022 edition of Volume One, reference should be made to the Guide to Volume One. While the Australian Building Codes Board has attempted to include all major changes made from the previous edition of Volume One, the Board does not give any warranty nor accept any liability in relation to the contents of this list of amendments. Table 1: List of amendments - NCC 2022 Volume One Reference Changes and Commentary General Throughout An “Introduction to this Part” has been added to introduce the intent and purpose of every Part of the NCC. Throughout The Objectives and Functional Statements have been relocated from the Guide to Volume One into NCC Volume One. Throughout A number of provisions have been amended, restructured, deleted and relocated as part of the initiative to provide a consistent NCC structure and improve NCC usability. Section A—Governing requirements A1G1 A new clause added to specify scope of NCC Volume One. A1G2 A new clause added to specify scope of NCC Volume Two. A1G3 A new clause added to specify scope of NCC Volume Three. A2G2(4)(b) Amended to remove unnecessary duplication. A5G3 A Note has been included to outline transitional arrangements regarding new numbering system and documentary evidence. A5G4 A new clause added to limit lead content in copper alloy plumbing products in contact with drinking water. A5G9 A new clause added to require a NatHERS certificate be issued for the house energy rating software output where house energy rating software is required. A6G1 The limitation statement has been amended to include a Class 9b early childhood centre. Specification 1 Schedule 5 in NCC 2019 Amendment 1 has been relocated into new Specification 1 and 2. Specification 2 Schedule 5 in NCC 2019 Amendment 1 has been relocated into new Specification 1 and 2. Specification 3 Schedule 6 in NCC 2019 Amendment 1 has been relocated into new Specification 3. Section B—Structure NCC 2022 Volume One - Building Code of Australia (1 May 2023) Page 23  Preface Reference Changes and Commentary B1P1(2)(a) A new requirement for a Class 7b buildings to have the ability to support the addition of solar photovoltaic panels. An exemption is also provided to certain Class 7b buildings. B1D3(a)(iv) A new requirement for a Class 7b buildings to have the ability to support the addition of solar photovoltaic panels. An exemption is also provided to certain Class 7b buildings. B1D3(c) Amended to clarify all parts of AS 1170.4 are applicable. Section C—Fire resistance C1V4 Amended as a consequence of restructuring Schedule 7 of NCC 2019 Volume One Amendment 1 into the referenced document, ABCB Fire Safety Verification Method standard. C2D10(4) Amended to provide additional concessions to C2D10(1) and (2). C2D10(5) A new sub-clause added to specify non-combustible materials. C2D10(6) Amended to provide cross-reference for fixing requirements of externally located bonded laminated materials. C2D14 Amended for clarity and to provide additional ancillary elements permitted on an external wall required to be non-combustible. C2D15 A new clause added to specify fixing requirements for externally located bonded laminated cladding panels. C3D3 Amended to make reference to new defined term ‘Volume’. C3D4 Amended to make reference to new defined term ‘Volume’. C3D6 A new sub-clause (2) has been inserted to provide compartmentation and separation requirements to Class 9b early childhood centres. As a consequence, the heading has also been amended. An exemption statement has also been included to provide exemption to certain Class 9b early childhood centres. C4D10 Amended to provide concession for test drain pipes used for fire services. C4D16 Amended to permit use of reports where the tested system differs from the subject system in accordance with AS 4072.1. Also, a new sub-clause has been inserted to clarify that tests must be reported in accordance with Specifications 1 and 2. S5C20(1) Sub-clause (c) has been inserted to permit the use of timber framing for roof trusses and floor frames. S5C23(1) Sub-clause (c) has been inserted to permit the use of timber framing for roof trusses and floor frames. Section D—Access and egress D2D3 Amended to provide concession to parts of a storey of certain buildings to require 1 exit in lieu of not less than 2 provided there is direct egress to a road or open space and satisfies D2D5 provision for 1 exit. NCC 2022 Volume One - Building Code of Australia (1 May 2023) Page 24  Preface Reference Changes and Commentary D2D3(4)(iv) Amended to require each part of storey or fire compartment used as a Class 9b early childhood centre be provided with not less than 2 exits. D2D4(2) Amended to require stairways or ramps serving Class 9b early childhood centres as a required exit to be fire- isolated. An exemption has been included for certain Class 9b early childhood centres. D2D8 Amended to provide exemption to ladders that are in accordance with D2D21, D3D23 or I3D3. D2D16(6) Amended and includes a new sub-clause to specify the clear area to horizontal exits to Class 9b early childhood centres must accommodate all occupants. D2D16(8) A new sub-clause has been inserted to require not less than 2 horizontal exits to fire compartments required by C3D6(2). D2D23 Amended to include new provisions for primary schools. References to early childhood centres have been deleted as a consequence to new and amended Deemed-to- Satisfy Provisions and limitation statement located in A6G1, C3D6, D2D3, D2D4, D2D16, D3D19, D3D22, D3D27, E1D11, Specification 17 and E2D20. D3D16(b) Amended to provide exemption only to resident use areas in a Class 9c building. D3D19(4) Amended to specify requirements of D3D19(2) and (3) cannot be applied to fire-isolated stairways or ramps serving Class 9b early childhood centres. D3D19(6) and (7) New sub-clauses have been inserted to provide a maximum opening between barrier and vertical face of a landing, balcony, deck, stairway or the like. D3D22(1)(c) Amended to include a new handrail requirement for Class 9b early childhood centres. D3D27 Amended and includes provision for doors of a fire- isolated exit to not be locked from the inside in a Class 9b early childhood centre. Section E—Services and equipment E1D2 Concessions, included in previous editions, regarding protection of booster assemblies have been removed on account of these now being included in AS 2419.1. E1D8 Amended to make reference to new defined term ‘Volume’. E1D11 Amended to require sprinkler protection for buildings containing a Class 9b early childhood centre. An exemption has been included for certain Class 9b early childhood centres. E1D13 Amended to make reference to new defined term ‘Volume’. E2D10 Amended to make reference to new defined term ‘Volume’. E2D20 A new sub-clause has been inserted to require automatic smoke detection and alarm system to a building containing Class 9b early childhood centre. An exemption has been included for certain Class 9b early childhood centres. NCC 2022 Volume One - Building Code of Australia (1 May 2023) Page 25  Preface Reference Changes and Commentary S17C2(c) Amended to specify that a Class 2 or 3 building with a Class 9b early childhood centre cannot adopt a sprinkler system in accordance with Specification 18. S17C14 A new clause has been inserted to require quick response sprinklers to Class 9b early childhood centres required to have an automatic fire sprinkler system. An exemption has been provided to certain Class 9b early childhood centres. Section F—Health and amenity Part F1 Part F1 has been re-named as a consequence of restructuring, includes new external waterproofing Deemed-to-Satisfy Provisions, and group provisions relating to rainwater management and rising damp. F1P2 Amended to reflect contemporary terminology of annual exceedance probability in lieu of average recurrence interval. F1P3 Amended to reflect contemporary terminology of annual exceedance probability in lieu of average recurrence interval. F1D2 A new clause added to specify application of Part F1. F1D3 Amended to clarify design and construction of stormwater drainage. F1D4 A new clause has been inserted to specify requirements for exposed joints incorporated in a roof, balcony, podium or similar horizontal part of building. F1D5 Amended to clarify locations at which external waterproofing membranes are required. Part F2 A new Part has been inserted as a consequence of restructuring Part F1 and contains group provisions for wet areas and overflow protection previously contained in NCC 2019 Amdt 1 Part F1. The remaining Parts of Section F have been renumbered accordingly. F2O1 A new Objective has been included for wet areas. F2F1 A new Functional Statement has been included for wet areas. F2D4 Amended to include new requirement for a floor to fall to waste where a floor waste is installed. Part F3 A new Part has been inserted containing new and relocated Deemed-to-Satisfy Provisions relating to roof and external wall weatherproofing. F3O1 A new Objective has been included for roof and wall cladding F3F1 A new Functional Statement has been included for roof and wall cladding F3D2 A new sub-clause has been added to include external waterproofing membrane complying with F1D5. Cellulose cement corrugated sheeting has been removed from the clause. F3D5 A new provision has been included to provide options for masonry, autoclaved aerated concrete and metal wall cladding complying with certain NCC referenced documents for satisfying external wall weatherproofing requirements. NCC 2022 Volume One - Building Code of Australia (1 May 2023) Page 26  Preface Reference Changes and Commentary F4D5(c) Amended to clarify ambulant sanitary compartment must be provided for each sex, and for male ambulant sanitary compartment to be separate from female ambulant sanitary compartment. F7P1 Amended and now contains quantified level of performance for sound transmission through floors. F7P2 Amended and now contains quantified level of performance for sound transmission through walls. FP5.3 This Performance Requirement in NCC 2019 Amdt 1 has been deleted as a consequence of amendments to F7P1 and F7P2. F7P3 Amended and now contains quantified level of performance for sound transmission through floors in a residential care building. F7P4 Amended and now contains quantified level of performance for sound transmission through walls in a residential care building. FP5.6 This Performance Requirement in NCC 201