National Building Code of the Philippines PDF

NATIONAL BUILDING CODE OF THE PHILIPPINES Presidential Decree 1096 Issued on February 19, 1977 RULE 1. GENERAL PROVISIONS Section 101. Title “Revised Implementing Rules and Regulations of the National Building Code of the Philippines (P.D 1096)” Section 102. Declaration of Policy Declared as the...

NATIONAL BUILDING CODE OF THE PHILIPPINES Presidential Decree 1096 Issued on February 19, 1977 RULE 1. GENERAL PROVISIONS Section 101. Title “Revised Implementing Rules and Regulations of the National Building Code of the Philippines (P.D 1096)” Section 102. Declaration of Policy Declared as the policy of the state to safeguard life, health, property and public welfare Section 103. Scope and Application 1. Scope of IRR: Architectural, civil/ctructural, electrical, mechanical, sanitary, plumbing and electronics. Also, design, location, siting, construction, alteration, repair, conversion, use, occupancy, maintenance, moving, demolition, and addition to public and private buildings except traditional indigenous family dwellings, and BP 220 projects. 2. Existing structures w/ appropriate building permits/cert of occupancy. 3. Allied professional codes and gov’t codes shall serve as the referral code of PD1096. Section 105. Site Requirements Land or site shall be sanitary, hygienic or safe. Section 106. Definitions  Addition - Any new construction which increases the height and/or floor area of existing buildings/structures.  Alteration - Works in buildings/structures involving changes in the materials used, partitioning, location/size of openings, structural parts, existing utilities and equipment but does not increase the building height and/or floor area.  Building Official - The Executive Officer of the OBO appointed by the Secretary.  Building Permit - A document issued by the Building Official (BO) to an owner/applicant to proceed with the construction, installation, addition, alteration, renovation, conversion, repair, moving, demolition or other work activity of a specific project/building/structure.  Construction - All on-site work done in the site preparation, excavation, foundation, assembly of all the components and installation of utilities, machineries and equipment of buildings/structures.  Conversion - A change in the use or occupancy of buildings/structures or any portion/s thereof, which has different requirements.  Demolition - The systematic dismantling or destruction of a building/structure, in whole or in part.  Moving - The transfer of buildings/structures or portion/s thereof from original location or position to another, either within the same lot or to a different one.  Office of the Building Official (OBO) - The Office authorized to enforce the provisions of the Code and its IRR in the field as well as the enforcement of orders and decisions made pursuant thereto.  Renovation - Any physical change made on buildings/structures to increase the value, quality, and/or to improve the aesthetic.  Repair - Remedial work done on any damaged or deteriorated portion/s of building/structure to restore to its original condition. RULE 2. ADMINISTRATION AND ENFORCEMENT Section 202. Technical Staff The National Building Code Development Office (NBCDO) created through DPWH Department Order, shall serve as the technical staff of the Secretary. The functions thereof are as follows: 1. Assist the Secretary 2. Review, evaluate, and take final action 3. Conduct seminar/workshops on PD1096 and BP344. 4. Other duties assigned. Section 203. General Powers and Functions of the Secretary 1. Formulate policies 2. Issue additional rules and regulations 3. Review appeals over decisions of Building Officials 4. Evaluation and approval of codes 5. Appoint Building Official in all cities or municipalities Section 205. Building Officials Shall be responsible for carrying out the the provisions of the Code. All building officials appointed or designated other than by the Secretary. Section 206. Qualifications of Building Officials 1. Filipino Citizen 2. Registered Architect or Civil Engineer 3. Member of good standing less than 5 yrs or recommended by acreddited organization 4. 5yrs of professional experience 5. Attended seminar/workshop on PD1096 Section 207. Duties of the Building Official 1. Enforcement of code in the field 2. Administrative control/supervision in his area 3. All changes shall not start w/o his evaluation and permit 4. Annual inspections 5. Issuance, suspension, revocation of permits 6. Stoppage of work 7. Submit quarter reports to Secretary Section 208. Fees - Secretary prescribe rate of fees - Building Official collects fees: - 20% (retain for office operational cost) - 80% (general fund of municipality) Section 209. Exemption of Fees  Public Buildings  Traditional Indigenous Family Dwellings (native materials and not more than P15,000) (bamboo, nipa, logs, lumber) Section 212. Administrative Fees 1. Imposition of Admin Fees: Secretary may impose fines of P10,000 for the following:  Construction w/o building permit  Unauthorized change during construction  Non-compliance with work stoppage  Non-compliance with demolition order  Use of building w/o Certificate of Occupancy  Failure to post Certificate of Occupancy in a conspicuous place  Change in type of Construction without permit 2. Determination of Amount of Fines  Light Violations: P5,000 fine - Failure to post Certificate of Occupancy - Failure to post Building Permit - Failure to provide safety measures for workers  Less Grave Violation: P8,000 fine - Non-compliance with work stoppage for repair order - Use of building w/o Certificate of Occupancy  Grave Violations: P10,000 fine - Unauthorized change during construction - Non-compliance with order to demolish - Non-compliance with work stoppage for construction/demolition w/o permit - Change in occupancy - Excavation left open more than 120 days. 3. Penalty  Excavation for foundation - 10% of the building permit   Construction of foundation (including pile driving and laying of reinforcing bars) - 25% of the building permit  Construction of superstructure up to 2.00 meters above established grade - 50% of the building permit  Construction of superstructure above 2.00 meters - 100% of the building permit Section 213. Penal Provisions Any person who violates the provision or declared to be unlawful under PD1096 shall be punished by a fine of not more than P20,000 or not more than 2 years imprisonment. Section 214. Dangerous and Ruinous Buildings or Structures Dangerous buildings are those which are herein declared as such or are structurally unsafe or not provided with safe egress, or which constitute a fire hazard, or are otherwise dangerous to human life.  Procedure for Demolition of Dangerous Buildings - After the declaration of Building Official that the building is dangerous, a written notice shall be served to the occupants and the occupants should vacate within 15 days for repair, or demolition of the building. RULE 3. PERMITS AND INSPECTION Section 301. Building Permits 1. Building Permit - a document issued by the Building Official to an owner/applicant to proceed with the construction, installation, addition, renovation, conversion, repair, moving, demolition or other work activity of a specific project/building/structure. 2. Supplementary Permits:  Ancillary Permits - duly signed and sealed by the corresponding professionals and the plans and specifications. - Architectural Permit - Civil/Structural Permit - Electrical Permit - Mechanical Permit - Sanitary Permit - Plumbing Permit - Electronics Permit  Accessory Permits - are issued by the Building Official for accessory parts of the project with very special functions.  - Bank and records vaults; swimming pools; firewalls separate from the building/structure; towers; silos; smokestacks; chimneys; commercial/industrial fixed ovens; industrial kilns/furnaces; water/waste treatment tanks, septic vaults; concrete and steel tanks; booths, kiosks and stages; and tombs, mausoleums and niches. 3. Building Permit Exemption a) Minor Construction  Minor structure not more than 6sqm and detached from other buildings for private use only. (Sheds, greenhouses, play houses, poultry)  Open terraces or patios not exceeding 20sqm  Installation of window grilles  Garden pools not exceeding 500mm in height  Garden masonry walls not exceeding 1.20 meters height b) Repair Works  Repair works not affecting structural members (ex. Replacement of roofing sheets)  Repair of non-load bearing walls  Repair of doors and windows  Repair of flooring  Repair of fence and walls  Repair of plumbing fixtures Section 302. Application of Permits 1. If the applicant is owner of lot:  Certified true copy of OCT/TCT  Tax Declaration  Current Real Property Tax Receipt 2. If the applicant if not the owner of lot:  Notarized Contract of Lease  Deed of Absolute Sale 3. Other Building Permit Requirements:  5 set of plans (signed and sealed) - Arch’l, Civil/Structural, Electrical, Mechanical, Sanitary, Plumbing and ECE Plans Section 304. Issuance of Building Permit  Issuance of Building Permit is within 15 days from compliance and payment of fees.  For excavations more than 50.00 cu. meters and more than 2.00 meters in depth, the owner/permittee shall post a cash bond of fifty  thousand pesos (P50,000.00) for the first 50.00 cu. meters and three hundred pesos (P300.00) for every cu. meters in excess of 50 cu. meters until the building permit is issued, said excavations shall not exceed 100.00 cu. meters or 3.00 meters in depth and shall not be left open without any work being done in the site for more than one hundred twenty (120) days, otherwise the cash bond shall be forfeited.  Liability: That under Article 1723 of the Civil Code of the Philippines, the engineer or architect who drew up the plans and specifications for a building/structure is liable for damages if within fifteen (15) years from the completion of the building/structure. Section 305. Validity of Building Permits The building permit shall be considered null or void: - If not used within 1 year from issuance. - Construction does not resume 120 days after abandonment of work Section 306. Non-issuance, Suspension, Revocation of Building Permits 1. Errors found in the plans and specifications 2. Incorrect data and information 3. Non-compliance with the code Section 309. Certificate of Occupancy To apply for Certificate of Occupancy, the following are required: - Notarized Certificate of Completion - Construction Logbook - As-built plans and specifications of the Building Inspection RULE 4. TYPES OF CONSTRUCTION Section 401. Types of Construction  Type 1 - Wood Construction  Type 2 - Wood Construction + 1-hour fire resistive throughout  Type 3 - Masonry + Wood Construction + 1-hour fire resistive throughout. - Exterior walls shall be incombustible fire-resistive construction.  Type 4  - Steel + Iron + Concrete + Masonry - Permanent non-bearing partitions of 1-hour fire resistive construction  Type 5 - 4 hour fire resistive throughout - Steel + Iron + Concrete + Masonry RULE 5. REQUIREMENTS OF FIRE ZONES Section 501. Fire Zones Defined Fire Zones - Are areas within which only certain types of buildings/structures are permitted to be constructed based on their use or occupancy, type of construction and resistance to fire. Section 502. Buildings Located in More Than One Fire Zone Buildings in Multiple Fire Zones - A building/structure which is located partly in one (1) fire zone and partly in another shall be considered to be in the more highly restrictive fire zone, when more than one third (1/3) of its total floor area is located in such zone. Section 507. Designation of Fire Zones 1. Non Fire Restrictive Zones For country size and rural areas. All construction types are allowed. 2. Fire Restrictive Zones Exterior walls at least 2 hour fire resistivity. Type 1 construction not allowed. 3. Highly Fire Restrictive Zones Only Type 4 and 5 Construction are allowed. 3-4 hour fire resistivity. RULE 6. FIRE RESISTIVE REQUIREMENTS Section 601. Fire Resistive Rating Defined Fire Resistive Rating - the degree to which a material can withstand fire as determined by generally recognized and accepted testing methods. Section 603. Fire Resistive Standards RULE 9. SANITATION Section 901. General Requirements All buildings shall be provided with the ff:  Adequate and potable water supply  Plumbing Installation  Suitable waste water treatment/disposal system  Storm water drainage  Pest and vermin control  Noise abatement device Section 902. Water Supply System  Potable water shall be supplied from existing municipal or city waterworks system  Water Quality: Shall conform to the criteria in the National Standards for Drinking Water  The water piping installation for water supply and distribution to each fixture including the wastewater drainage shall conform to the  provision of the Revised National Plumbing Code of the Philippines. Section 903. Wastewater Disposal System  Sanitary sewage from buildings shall be discharged directly into the nearest street sanitary sewer main of existing municipal or city sanitary sewarage system in accordance with the criteria set by the Code on Sanitation of the Philippines and DENR.  All buildings located in areas where there are no available sanitary sewarage system shall dispose their sewage to “Imhoff” or septic tank. Section 904. Storm Drainage System  Rainwater drainage shall not discharge to the sanitary sewer system. RULE 10. BUILDING PROJECTION OVER PUBLIC STREETS Section 1001. General Requirements  No part of any building or structure or any of its appendages, shall project beyond the building line except as provided herein. Section 1002. Projection into Alleys of Streets  Footings located at least 2.40meters below grade along national roads or public highway may project not more than 300mm beyond the propertly line.  Foundations can encroach into public sidewalk if it is not more than 500mm and the top of foundation is not less than 600mm below the established grade. Section 1003. Projection of Balconies and Appendages Over Streets  Projection of Balconies are allowed, however it should conform to the provisions of the code.  Clearance between sidewalk grade and lowest portion of balcony should be 3.00m minimum. Section 1004. Arcades  Arcades shall be at least 3.00m above the sidewalk grade. Section 1005. Canopies (Marquees)  Canopy or Marquee is a permanent roofed structure above a door attached to and supported by the building and projecting over a wall or sidewalk.  The vertical clearance between the pavement or ground line and the undersurface of any part of the marquee shall not be less than 3.00 meters. Section 1006. Movable Awnings of Hoods (Doors and Windows)  Unless height is at least 2.40m above the pavement, no door or window shall project beyond the property line when fully opened or upon opening. Section 1007. Chaflan  UIf the public street is less than 3.60m wide, the corner building or fence shall be truncated to form a chaflan.  The chaflan shall be at least 4.00m wide. RULE 11. PROTECTION OF PEDESTRIANS DURING CONSTRUCTION Section 1101. General Requirements 1. No person shall use or occupy a street, alley or public sidewalk for the performance or work covered by a building permit except in accordance with the provisions of this Rule. 2. No person shall perform any work or any building/structure adjacent to a public way in general use for pedestrian travel, unless the pedestrians are protected as specified in this Rule. 3. Any material, building/structure temporarily occupying public property, including fence, canopies and walkways, shall be adequately lighted between sunset and sunrise. Section 1102. Storage in Public Property  Shall not obstruct utility provisions (fire hydrants, fire alarm box, manholes)  Shall not interfere with drainage  Shall not interfere with vehicular and pedestrian traffic  No materials shall be piled or stacked higher than 1.80 meters, except in yards or sheds intended especially for storage. Section 1103. Mixing Mortar on Public Property  The mixing of mortar, concrete, or similar materials on public streets is not allowed. Section 1105. Walkway 1. When the Building Official authorizes a sidewalk to be closed, a temporary walkway at least 1.20 meters wide shall be provided. 2. If the street has no sidewalk, width may be reduced to 600 mm. 3. If RROW is 5.00 meters wide or less, no temporary walkways are allowed. 4. Such walkway shall be capable of supporting a uniform live load of 650 kilogram per sq. meters. Section 1106. Pedestrian Protection 1. Fences shall entirely close a construction site, be erected on the building side of sidewalks or walkways. 2. Shall be made of approved materials (e.g. G.I. sheet, wooden boards and/or planks, plywood or Lawanit, sawali) 3. Not less than 2.40 meters in height above the curb line. RULE 12. GENERAL DESIGN AND CONSTRUCTION REQUIREMENTS Section 1206. Roof Construction and Covering 1. Roof Covering. Shall be fire retardant or ordinary depending upon the fire- resistive requirements of the particular type of construction. 2. Roof Trusses. Framed and tied into the framework and supporting walls so as to form an integral part of the whole building. Camber shall be provided to prevent sagging. 3. Attics. An attic access opening shall be provided in the ceiling of the top floor of buildings with a combustible ceiling or roof construction. An opening shall not be less than 600 millimeters square or 600 millimeters in diameter. The minimum clear headroom of 800 millimeters shall be provided above the access opening. Section 1207. Stairs, Exits and Occupant Loads 1. Occupant Loads 2. Number of Exits  Every building shall have at least one exit  Upper floors with occupant load of more than 10 shall have at least two exits  A mezzanine floor bigger than 185 sqm or having more than 18.00 meters in any dimension shall have at least two stairways to an adjacent floor. 3. Width of Exits  Total width of exits = Occupant load / 165  Note: This is the total width in meters of the exits and shall be divided approximately equally among the separate exits 4. Arrangement of Exits  If two exits are required, the two exits must be apart by at least 1/5 of the perimeter of the area served.  If three or more are required, they shall be arranged a reasonable distance apart. 5. Distance to Exits  If without a sprinkler system 45.00m maximum  If with a sprinkler system, 60.00m maximum  Measured from any point in a building, measured along the line of travel. 6. Exit Doors  When serving an occupant load of 50 or more must swing in the direction of exit travel  Double acting doors shall not be used as exits when serving a tributary load of more than 100. Must be provided with a view panel of not less than 1300 sq.cm. 7. Size of Doors  Minimum width of doorway: 0.90m  Minimum height of doorway: 2.00m  Shall be capable of opening at least 90 degrees  Maximum door leaf width: 1.20m 8. Type of Locks  Exit doors shall be openable from the inside without the use of a key or any special knowledge or effort. 9. Prohibited Doors  Revolving Doors  Sliding Doors  Overhead Doors 10. Corridors  Minimum width 1.10m  This width shall be unobstructed, except that trim handrails and doors when fully opened shall not reduce the required width by more than 200mm.  Doors in any position shall not reduce the width by more than 1/2. 11. Dead Ends  Maximum length: 6.00m 12. Stairway Width  1.10m for occupant load more than 50  0.90m for occupant load of 50 or less  0.75m for occupant load of less than 10 (private)  Handrails shall not reduce the width of stairways by more than 100mm 13. Riser and Tread  Maximum riser: 200mm  Minimum tread: 250mm 14. Stairway Headroom  Headroom clearance should be minimum 2.00m measured from nosing. 15. Landings  Length = stairway width  If the stairway has a straight run, landing length does not need to exceed 1.20m  Landing width shall not be reduced by more than 100mm by any door when fully opened.  Max. vertical distance between landings: 3.60m 16. Handrails  Stairways shall have handrails on each side  If a stairway is more than 3.00m in width, at least one intermediate handrail shall be provided.  Height of handrails: 800-900mm above the nosing of treads.  Exceptions: - In Group A or B occupancies, stairways 1.10m or less in width serving one individual dwelling may have one handrail only. - Stairways having less than four risers need not have handrails 17. Winding Stairways  Allowed as exits as long as the required tread (250mm) is provided at point 300mm away from the narrow end  However, the tread must not be narrower than 150mm at any point. 18. Circular Stairways  May be used as exits provided that the minimum width of run is not less than 250mm 19. Aisles  Aisles leading to an exit shall be provided for all portions with installed seats, tables, etc.  Shall be at least 0.80m wide if serving only one side, or 1.00m if serving both sides.  The minimum width shall be measured at the point farthest from the exit, and shall be increased by 30mm for every meter in length towards the exit. 20. Aisles Travel Distance  The line of travel to an exit door by an aisle shall not be more than 45.00m  Maximum 7 seats between wall and aisle  Maximum 14 seats between two aisles  Maximum slope: 1 in 8  The number of seats between aisles may be increased to 30 if: - Exit doors are provided along each aisle at the rate of 1 pair of exit doors for every 5 rows of seats. - The back to back distance between seats is 1.00m minimum - Minimum clear width of exit doors is 1.70m 21. Fire Extinguishing Systems  Automatic fire extinguishing systems are required for the following: - Habitable storeys with an area of 200 sqm or more than occupant load or more than 20 - Dressing rooms, rehearsal rooms, workshops or factories with occupant load of more than 10 - Assembly halls under Group H and I with occupant load of more than 500. 22. Dry Standpipes  All buildings 4 or more storeys in height shall be equipped with one or more dry standpipes.  Standpipes shall be located within enclosed stairway landings  Siamese connections shall be located on the street-front of a building 300mm-1200mm above grade. 23. Wet Standpipes  The following shall have wet standpipes:  - Group H or I occupancy of any height - Group C occupancy 2 or more storeys in height - Group B, D, E, F and G3 or more storeys in height - Group G and E occupancy over 1800 sqm in area  Excemption: - Group H buildings without storage whose seating capacity is less than 500 RULE 13. ELECTRICAL AND MECHANICAL REGULATIONS 1. Referral Codes  All electrical systems and inostallations shall conform to the provisions of the Philippine Electrical Code pursuant to RA 7920 (Electrical Engg. Law)  All mechanical systems and installations shall conform to the provisions of the Philippine Mechanical Code pursuant to RA 8495 (Mech. Engg. Law) 2. Clearance of Service Drops  2.50m from highest point of roofs  3.00m from the ground  1.00m horizontal from windows/porches  5.50m from the crown of the street or sidewalk  No service drop conductors or any other wiring shall pass over swimming pools 3. Elevators  Hoistway pit: minimum 600mm from underside of car to bottom of pit  Maximum four elevators in a single hoistway  Residential buildings 5 storeys or higher shall have at least one passenger elevator on 24-hour constant operation 4. Escalators  Maximum inclination: 30 deg from horizontal  Width between balustrades: 560mm-1200mm  Speed: 38meetrs per minute maximum (common rule is 90-120 fpm/27.5-36.5mpm) 5. Air Conditioning  Comfortable cooling standards: - Temperature: 20deg - 24deg Celsius - Humidity: 50% - 60% - Air movement: 4.60 - 7.60 meters per minute 6. Water Pumping  Installation of pumping equipment directly from the public water supply system is prohibited   An underground watter tank or cistern must be filled by gravity flow from the water supply system, from where pumps can be installed. 7. Pipings  Piping shall, as much as possible, run parallel to building walls.  Piping 100 mm in diameter and above shall be flanged. Smaller sized pipes may be screwed.  Piping subjected to varying temperatures shall be provided with expansion joints.  Galvanized piping shall not be used for steam.  Piping carrying steam, hot water or hot liquids shall not be embedded in concrete walls or floors and shall be properly insulated. Piping carrying propane, butane and other gas which are heavier  than air, shall be provided with automatic shut off devices. 8. Piping Colors RULE 14. PHOTO FILMS AND X-RAY FILMS Film Storage Rooms  Provide automatic fire extinguishing systems for the following:  When unexposed films in shipping containers exceed 14.00cubic meters  When shelving used for storing film exceeds 1.40cubic meters in capacity  No film shall be stored within 600mm of steam pipes, chimneys, or other sources of heat. RULE 15. PREFABRICATED CONSTRUCTION Prefabricated Assembly  A structural unit, the integral parts of which have been built-up or assembled prior to incorporation in the building  To determine structural adequacy, they shall pass special tests conducted by accredited material testing laboratories. RULE 16. PLASTICS 1. Approved Plastics  Those which have a flame-speed rating of 225 or less  Those which smoke density not greater than that obtained from the burning of untreated wood  Those whose products of combustion of untreated wood 2. Plastic Doors  Are allowed except for entrance doors and exit doors, which should be of materials other than plastics. RULE 17. SHEET METAL SPRAYBOOTHS Spray Paint Booths  Paint spray booths shall be constructed of not less than No. 18 US Gauge in thickness  The area of a spray paint booth shall not exceed 150sqm  The floor of the booth, if combustible, shall be covered with non- combustible material  Shall permit the free passage of exhaust air RULE 18. GLASS AND GLAZING Glass General Requirements  Glass panels with special performance characteristics shall bear the manufacturers’s label indicating said characteristics  Measures shall be taken to keep persons from walking into fixed glass panels where the floor on both sides of the glass are the same level (guardrails, etching flower bins)  Glass in large areas along shopping malls, commercial buildings, institutional buildings, etc.  Bathtub and shower enclosures shall be constructed from approved shatter-resistant materials, such as: - wire-reinforced glass not less than 5.6mm thick - fully tempered glass not less than 4.8mm thick - laminated safety glass not less than 6.4mm thick RULE 19. USE OF COMPUTERS General Requirements  The use of computers for all or any part of building design is permitted provided that all programs to be used are documented. RULE 20. USE OF COMPUTERS 1. General Requirements  No sign shall be erected in such a manner as to confuse or obstruct the view or interpretation of any official traffic sign/device.   Signs in any foreign language shall have translation in English or the local dialect. 2. Roof Signs  No signs shall be installed on rooftops of buildings of wooden structures of buildings with wooden roof framing  Provide grounding of metallic parts of roof signs exposed to lightning 3. Projecting Signs  On non-arcaded RROW - Signs shall not project more than 1.20m  On arcaded RROW - Signs shall not project more than 0.60m  Buildings abutting RROW without sidewalks: - Signs shall not project more than 0.30m  Minimum vertical clearance: - Non-arcaded RROW: 3.00m from road surface to lowest part of signs - Arcaded RROW: 5.00m from road surface to lowest part of signs. RULE 21. FINAL PROVISIONS NATIONAL BUILDING CODE OF THE PHILIPPINES RULE 1. GENERAL PROVISIONS RULE 2. ADMINISTRATION AND ENFORCEMENT RULE 3. PERMITS AND INSPECTION RULE 4. TYPES OF CONSTRUCTION RULE 5. REQUIREMENTS OF FIRE ZONES RULE 6. FIRE RESISTIVE REQUIREMENTS RULE 7. CLASSIFICATION AND GENERAL REQUIREMENTS OF ALL BUILDINGS BY USE OR OCCUPANCY RULE 8. LIGHT AND VENTILATION RULE 9. SANITATION RULE 10. BUILDING PROJECTION OVER PUBLIC STREETS RULE 11. PROTECTION OF PEDESTRIANS DURING CONSTRUCTION RULE 12. GENERAL DESIGN AND CONSTRUCTION REQUIREMENTS RULE 13. ELECTRICAL AND MECHANICAL REGULATIONS RULE 14. PHOTO FILMS AND X-RAY FILMS RULE 15. PREFABRICATED CONSTRUCTION RULE 16. PLASTICS RULE 17. SHEET METAL SPRAYBOOTHS RULE 18. GLASS AND GLAZING RULE 19. USE OF COMPUTERS RULE 20. USE OF COMPUTERS RULE 21. FINAL PROVISIONS