Section 3280.4 - [Effective 3/17/2025] Incorporation by reference(a)(1) Certain material is incorporated by reference in this part with the approval of the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51 . To enforce any edition other than that specified in this section, the U.S. Department of Housing and Urban Development (Department) must publish a document in the Federal Register and the material must be available to the public. All approved incorporation by reference (IBR) material is available for inspection at the Department and at the National Archives and Records Administration (NARA). Contact the Department at: Office of Manufactured Housing Programs, 451 Seventh Street SW, Washington, DC 20410; email mhs@hud.gov; (202) 402-2698. For information on the availability of this material at NARA, visit www.archives.gov/federal-register/cfr/ibr-locations or email fr.inspection@nara.gov.(2) The IBR material may be obtained from the sources in this paragraph (a)(2) or from one or more private resellers listed in this paragraph (a)(2). For material that is no longer commercially available, contact the Office of Manufactured Housing Programs (see paragraph (a)(1) of this section).(ii) American National Standards Institute (see paragraph (h) of this section).(iii) EverySpec LLC, 710 Lake Louise Ct., Gibsonia, PA 10544; website: http://everyspec.com. (Government and military standards only.)(v) Nimonik Document Center, 401 Roland Way, Suite 224, Oakland, CA, 94624; phone (650)591-7600; email: info@document-center.com; website: www.document-center.com.(b) Air Conditioning, Heating & Refrigeration Institute (AHRI), 2311 Wilson Blvd., Suite 400, Arlington, VA 22201; telephone: 703-524-8800; fax: 703-528-3816; website: www.ahrinet.org.(1) ANSI/AHRI Standard 210/240-2008 with Addenda 1 and 2, 2008 Standard for Performance Rating of Unitary Air-Conditioning and Air-Source Heat Pump Equipment, ANSI-approved December 2012; IBR approved for §§ 3280.511(b) ; 3280.703(d) ; 3280.714(a) .(c) Aluminum Association (AA), 1525 Wilson Blvd., Suite 600, Arlington, VA 22209; telephone: 703-358-2960; fax: 703-358-3921; website: www.aluminum.org.(1) Aluminum Design Manual, Specifications and Guidelines for Aluminum Structures, Part 1-A, Sixth Edition, October 1994; IBR approved for § 3280.304(b) .(2) Aluminum Design Manual, Specifications and Guidelines for Aluminum Structures, Part 1-B, First Edition, October 1994; IBR approved for § 3280.304(b) .(d) American Forest and Paper Association (AFPA), 1101 K Street NW, Suite 700, Washington, DC 20005; telephone: 202-463-2700; website: www.afandpa.org.(1) AFPA, Wood Structural Design Data, 1986 Edition with 1992 Revisions; IBR approved for § 3280.304(b) .(e) American Gas Association (AGA), 400 North Capitol Street NW, Washington, DC 20001: telephone: 202-824-7000; website: www.aga.org.(1) AGA No. 3-87, Requirements for Gas Connectors for Connection of Fixed Appliances for Outdoor Installation, Park Trailers, and Manufactured (Mobile) Homes to the Gas Supply; IBR approved for § 3280.703(d) .(f) American Institute of Steel Construction (AISC), 130 East Randolph Street, Suite 2000, Chicago, IL 60601-6219; telephone: 312-670-2400; fax: 312-626-2402; website: www.aisc.org.(1) ANSI/AISC 360-10, Specification for Structural Steel Buildings, Second Printing: February 2012 (AISC 360-10); IBR approved for §§ 3280.304(b) ; 3280.305(j) .(g) American Iron and Steel Institute (AISI), 25 Massachusetts Avenue NW, Suite 800, Washington, DC 20001; telephone: 202-452-7100; website: www.steel.org.(1) AISI S100-12, North American Specification for the Design of Cold-Formed Steel Structural Members, 2012 Edition, 2nd Printing-June 2014, including AISI S100-12-E3 errata dated December 10, 2014; IBR approved for §§ 3280.304(b) ; 3280.305(j) .(h) American National Standards Institute (ANSI), 25 West 43rd Street, 4th Floor, New York, NY 10018; telephone: 212-642-4900; fax: 212-398-0023; website: www.ansi.org.(1) ANSI A112.14.1-1975, Backflow Valves; IBR approved for § 3280.604(c) .(2) ANSI A112.19.5-1979, Trim for Water Closet, Bowls, Tanks, and Urinals; IBR approved for § 3280.604(c) .(3) ANSI/AITC A190.1-1992, For wood products-Structural Glued Laminated Timber; IBR approved for § 3280.304(b) .(4) ANSI A208.2-2002, Medium Density Fiberboard (MDF) For Interior Applications, approved May 13, 2002; IBR approved for § 3280.304(b) .(5) ANSI B16.18-1984, Cast Copper Alloy Solder-Joint Pressure Fittings; IBR approved for § 3280.604(c) .(6) ANSI C72.1-1972, section 4.3.1, Household Automatic Electric Storage Type Water Heaters; IBR approved for § 3280.707(d) .(7) ANSI Z21.22-1999, Relief Valves for Hot Water Supply Systems; IBR approved for §§ 3280.604(c) ; 3280.703(d) .(8) ANSI Z34.1-1993, Third-Party Certification Programs for Products, Processes, and Services; IBR approved for §§ 3280.403(e) ; 3280.405(e) .(9) ANSI Z97.1-2009 e, American National Standard for safety glazing materials used in buildings-safety performance specifications and methods of test, approved November 2009; IBR approved for §§ 3280.113(d) ; 3280.304(b) ; 3280.403(d) ; 3280.604(c) ; 3280.607(b) ; 3280.703(d) .(10) ANSI Z124.1-1987, Plastic Bathtub Units with Addendum Z124.1a-1990 and Z124.1b-1991; IBR approved for § 3280.604(c) .(11) ANSI Z124.2-1987, Plastic Shower Receptors and Shower Stalls with Addendum Z124.2a-1990; IBR approved for § 3280.604(c) .(12) ANSI Z124.3-1986, Plastic Lavatories with Addendum Z124.3a-1990; IBR approved for § 3280.604(c) .(13) ANSI Z124.4-1986, Plastic Water Closets, Bowls, and Tanks with Addenda Z124.4a-1990; IBR approved for § 3280.604(c) .(14) ANSI Z124.5-1997, Plastic Toilet (Water Closets) Seats; IBR approved for § 3280.604(c) .(15) ANSI Z124.7-1997, Prefabricated Plastic Spa Shells; IBR approved for § 3280.604(c) .(16) ANSI Z-124.9-1994, Plastic Urinal Fixtures; IBR approved for § 3280.604(c) .(i) American Society of Civil Engineers (ASCE), 1801 Alexander Bell Drive, Reston, VA 20191; telephone: 800-548-2723; website: www.asce.org.(1) ANSI/ASCE 7-88, Minimum Design Loads for Buildings and Other Structures, IBR approved for §§ 3280.5(f) ; 3280.304(b) ; 3280.305(c) .(2) SEI/ASCE 8-02, Specification for the Design of Cold-Formed Stainless Steel Structural Members, 2002; IBR approved for §§ 3280.304(b) ; 3280.305(j) .(3) ASCE 19-96, Structural Applications of Steel Cables for Buildings; IBR approved for § 3280.304(b) .(j) American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE), 1791 Tullie Circle NE, Atlanta, GA 30329; telephone: 404-636-8400; fax: 404-321-5478; website: www.ashrae.org/home/.(1) 1997 ASHRAE Handbook of Fundamentals, chapters 22 through 27, (except for the following parts of this standard that are not incorporated by reference: 23.1 Steel Frame Construction; 23.2 Masonry Construction; 23.3 Foundations and Floor Systems; 23.15 Pipes; 23.17 Tanks, Vessels, and Equipment; 23.18 Refrigerated Rooms and Buildings; 24.18 Mechanical and Industrial Systems; 25.19 Commercial Building Envelope Leakage; 27.9 Calculation of Heat Loss from Crawl Spaces), Inch-Pound Edition, 1997; IBR approved for §§ 3280.508(a) and (e) ; 3280.511(a) .(2) ANSI/ASHRAE Standard 62.2-2013, Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings, approved January 30, 2013 (ANSI/ASHRAE 62.2); IBR approved for §§ 3280.103(d) and (e) ; 3280.703(d) .(k) American Society of Mechanical Engineers (ASME), Two Park Avenue, New York, NY 10016-5990; telephone: 800-843-2763; website: www.asme.org/.(1) ASME A112.1.2-1991, Air Gaps in Plumbing Systems; IBR approved for § 3280.604(c) .(2) ANSI/ASME A112.4.1-1993, Water Heater Relief Valve Drain Tubes; IBR approved for § 3280.604(c) .(3) ANSI/ASME A112.4.3-1999, Plastic Fittings for Connecting Water Closets to the Sanitary Drainage System; IBR approved for § 3280.604(c) .(4) ASME/ANSI A112.18.1M-1989, Plumbing Fixture Fittings; IBR approved for § 3280.604(c) .(5) ASME A112.18.3M-1996, Performance Requirements for Backflow Protection Devices and Systems in Plumbing Fixture Fittings; IBR approved for § 3280.604(c) .(6) ASME A112.18.6-1999, Flexible Water Connectors; IBR approved for § 3280.604(c) .(7) ASME A112.18.7-1999, Deck Mounted Bath/Shower Transfer Valves with Integral Backflow Protection; IBR approved for § 3280.604(c) .(8) ANSI/ASME A112.19.1M-1987, Enameled Cast Iron Plumbing Fixtures; IBR approved for § 3280.604(c) .(9) ANSI/ASME A112.19.2(M)-1990, Vitreous China Plumbing Fixtures; IBR approved for § 3280.604(c) .(10) ANSI/ASME A112.19.3M-1987, Stainless Steel Plumbing Fixtures (Designed for Residential Use); IBR approved for § 3280.604(c) .(11) ANSI/ASME A112.19.4(M)-1984, Porcelain Enameled Formed Steel Plumbing Fixtures; IBR approved for § 3280.604(c) .(12) ASME A112.19.6-1995, Hydraulic Performance Requirements for Water Closets and Urinals; IBR approved for § 3280.604(c) .(13) ASME/ANSI A112.19.7M-1987, Whirlpool Bathtub Appliances; IBR approved for § 3280.604(c) .(14) ASME/ANSI A112.19.8M-1989, Suction Fittings for Use in Swimming Pools, Wading Pools, Spas, Hot Tubs, and Whirlpool Bathtub Appliances; IBR approved for § 3280.604(c) .(15) ASME A112.19.9M-1991, Non-Vitreous Ceramic Plumbing Fixtures; IBR approved for § 3280.604(c) .(16) ASME A112.19.10-1994, Dual Flush Devices for Water Closets; IBR approved for § 3280.604(c) .(17) ANSI/ASME A112.21.3M-1985, Hydrants for Utility and Maintenance Use; IBR approved for § 3280.604(c) .(18) ANSI/ASME B1.20.1-2013, Pipe Threads, General Purpose (Inch), reaffirmed 2018; IBR approved for §§ 3280.604(c) ; 3280.703(b) ; 3280.705(e) ; 3280.706(d) .(19) ANSI/ASME B16.3-1992, Malleable Iron Threaded Fittings; IBR approved for § 3280.604(c) .(20) ANSI/ASME B16.4-1992, Gray Iron Threaded Fittings; IBR approved for § 3280.604(c) .(21) ANSI/ASME B16.15-1985, Cast Bronze Threaded Fittings, Classes 125 and 250; IBR approved for § 3280.604(c) .(22) ASME/ANSI B16.22-1989, Wrought-Copper and Copper Alloy Solder-Joint Pressure Fitting; IBR approved for § 3280.604(c) .(23) ASME B16.23-1992, Cast Copper Alloy Solder-Joint Drainage Fittings-DWV; IBR approved for § 3280.604(c) .(24) ASME/ANSI B16.26-1988, Cast Copper Alloy Fittings for Flared Copper Tubes; IBR approved for § 3280.604(c) .(25) ASME/ANSI B16.29-1986, Wrought Copper and Wrought Copper Alloy Solder-Joint Drainage Fittings-DWV; IBR approved for § 3280.604(c) .(26) ANSI/ASME B36.10-2004, Welded and Seamless Wrought Steel Pipe, ANSI-approved June 23, 2004; IBR approved for §§ 3280.604(c) ; 3280.703(b) , 3280.705(b) ; 3280.706(b) .(l) American Society of Sanitary Engineering (ASSE), 901 Canterbury, Suite A, Westlake, OH 44145; telephone: 440-835-3040; fax: 440-835-3488; website: www.asse-plumbing.org.(1) ASSE 1001, Performance Requirements for Pipe Applied Atmospheric Type Vacuum Breakers, ANSI-approved 1990; IBR approved for § 3280.604(c) .(2) ASSE 1002 (ANSI/ASSE-1979), Performance Requirements for Water Closet Flush Tank Fill Valves (Ballcocks), Revision 5, 1986; IBR approved for § 3280.604(c) .(3) ASSE 1006, Plumbing Requirements for Residential Use (Household) Dishwashers, ASSE/ANSI-1986; IBR approved for § 3280.604(c) .(4) ASSE 1007-1986, Performance Requirements for Home Laundry Equipment; IBR approved for § 3280.604(c) .(5) ASSE 1008-1986, Performance Requirements for Household Food Waste Disposer Units; IBR approved for § 3280.604(c) .(6) ASSE 1011-1981, Performance Requirements for Hose Connection Vacuum Breakers, ANSI-approved 1982; IBR approved for § 3280.604(c) .(7) ASSE 1014-1989, Performance Requirements for Hand-held Showers, ANSI-approved 1990; IBR approved for § 3280.604(c) .(8) ASSE 1016-2005, Performance Requirements for Automatic Compensating Values for Individual Shower and Tub/Shower Combinations, approved January 2005; IBR approved for §§ 3280.604(c) ; 3280.607(b) .(9) ASSE 1017-1986, Performance Requirements for Temperature Activated Mixing Valves for Primary Domestic Use, 1986; IBR approved for § 3280.604(c) .(10) ANSI/ASSE 1019-1978, Performance Requirements for Wall Hydrants, Frost Proof Automatic Draining, Anti-Backflow Types, 1978; IBR approved for § 3280.604(c) .(11) ASSE 1023, Performance Requirements for Hot Water Dispensers, Household Storage Type Electrical, ANSI/ASSE-1979; IBR approved for § 3280.604(c) .(12) ASSE 1025, Performance Requirements for Diverters for Plumbing Faucets with Hose Spray, Anti-Siphon Type, Residential Applications, ANSI/ASSE-1978; IBR approved for § 3280.604(c) .(13) ASSE 1037-1990, Performance Requirements for Pressurized Flushing Devices (Flushometers) for Plumbing Fixtures, ANSI-approved 1990; IBR approved for § 3280.604(c) .(14) ASSE 1051, Performance Requirements for Air Admittance Valves for Plumbing Drainage Systems-Fixture and Branch Devices Revised 1996, ANSI-approved 1998; IBR approved for § 3280.604(c) .(15) ASSE 1070-2004, Performance Requirements for Water Temperature Limiting Devices, 2004; IBR approved for §§ 3280.604(c) ; 3280.607(b) .(m) APA-The Engineered Wood Association (APA) (formerly the American Plywood Association), 7011 South 19th Street, Tacoma, WA 98411; telephone: 253-565-6600; fax: 253-565-7265; website: www.apawood.org.(1) APA D510C, Panel Design Specification, copyright 2012; IBR approved for § 3280.304(b) .(2) APA E30P-1996, APA Design/Construction Guide, Residential and Commercial Structures; IBR approved for § 3280.304(b) .(3) APA E30V, Engineered Wood Construction Guide, copyright 2011; IBR approved for § 3280.304(b) .(4) APA H815G, Plywood Design Specification Supplement 5-12, Design and Fabrication of All-Plywood Beams, December 2013; IBR approved for § 3280.304(b) .(5) APA S811P, Plywood Design Specification Supplement 1-12, Design and Fabrication of Plywood Curved Panels, December 2013; IBR approved for § 3280.304(b) .(6) APA S812S, Plywood Design Specification Supplement 2-12, Design and Fabrication of Glued Plywood-Lumber Beams, December 2013; IBR approved for § 3280.304(b) .(7) APA U813M, Plywood Design Specification Supplement 3-12, Design and Fabrication of Plywood Stressed-Skin Panels, December 2013; IBR approved for § 3280.304(b) .(8) APA U814J, Plywood Design Specification Supplement 4-12, Design and Fabrication of Plywood Sandwiched Panels, December 2013; IBR approved for § 3280.304(b) .(9) APA Y510, Plywood Design, January 1997; IBR approved for § 3280.304(b) .(n) ASTM, International (ASTM), 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959; telephone:877-909-2786 (USA & Canada); fax: 610-832-9555; website: www.astm.org.(1) ASTM A53/A53M-12, Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless, approved March 1, 2012; IBR approved for §§ 3280.604(c) ; 3280.703(b) .(2) ASTM A74-92, Standard Specification for Cast Iron Soil Pipe and Fittings, 1992; IBR approved for § 3280.604(c) .(3) ASTM A539-99, Standard Specification for Electric-Resistance-Welded Coiled Steel Tubing for Gas and Fuel Oil Lines, 1999; IBR approved for §§ 3280.703(b) ; 3280.705(b) ; 3280.706(b) .(4) ASTM B42-10, Standard Specification for Seamless Copper Pipe, Standard Sizes, approved October 1, 2010; IBR approved for §§ 3280.604(c) ; 3280.703(c) .(5) ASTM B43-91, Standard Specification for Seamless Red Brass Pipe, Standard Sizes, 1991; IBR approved for §§ 3280.604(c) ; 3280.705(b) .(6) ASTM B88-14, Standard Specification for Seamless Copper Water Tube, approved September 1, 2014; IBR approved for §§ 3280.604(c) ; 3280.703(c) ; 3280.705(b) ; 3280.706(b) .(7) ASTM B251-10, Standard Specification for General Requirements for Wrought Seamless Copper and Copper-Alloy Tube, approved October 1, 2010; IBR approved for §§ 3280.604(c) ; 3280.703(c) .(8) ASTM B280-13, Standard Specification for Seamless Copper Tube for Air Conditioning and Refrigeration Field Service, approved April 1, 2013; IBR approved for §§ 3280.703(c) ; 3280.705(b) ; 3280.706(b) .(9) ASTM B306-92, Standard Specification for Copper Drainage Tube (DWV), 1992; IBR approved for § 3280.604(c) .(10) ASTM C564-97, Standard Specification for Rubber Gaskets for Case Iron Soil Pipe and Fittings, approved December 10, 1997; IBR approved for §§ 3280.604(c) ; 3280.611(d) .(11) ASTM C920-02, Standard Specification for Elastomeric Joint Sealants, approved January 10, 2002; IBR approved for § 3280.611(d) .(12) ASTM C1396/C1396M-14a, Standard Specification for Gypsum Board, approved October 1, 2014; IBR approved for § 3280.304(b) .(13) ASTM D781-68 (Reapproved 1973), Standard Test Methods for Puncture and Stiffness of Paperboard, and Corrugated and Solid Fiberboard, 1973; IBR approved for §§ 3280.304(b) ; 3280.305(g) .(14) ASTM D2235-88, Standard Specification for Solvent Cement for Acrylonitrile-Butadiene-Styrene (ABS) Plastic Pipe and Fittings, 1988; IBR approved for § 3280.604(c) .(15) ASTM D2564-91a, Standard Specification for Solvent Cements for Poly (Vinyl Chloride) (PVC) Plastic Piping Systems, 1991; IBR approved for § 3280.604(c) .(16) ASTM D2661-91, Standard Specification for Acrylonitrile-Butadiene-Styrene (ABS) Schedule 40 Plastic Drain, Waste, and Vent Pipe and Fittings, 1991; IBR approved for § 3280.604(c) .(17) ASTM D2665-91b, Standard Specification for Poly (Vinyl Chloride) (PVC) Plastic Drain, Waste, and Vent Pipe and Fittings, 1991; IBR approved for § 3280.604(c) .(18) ASTM D2846-92, Standard Specification for Chlorinated Poly (Vinyl Chloride) (CPVC) Plastic Hot- and Cold-Water Distribution Systems, 1992; IBR approved for § 3280.604(c) .(19) ASTM D3309-92a, Standard Specification for Polybutylene (PB) Plastic Hot- and Cold-Water Distribution Systems, 1992; IBR approved for § 3280.604(c) .(20) ASTM D3311-92, Standard Specification for Drain, Waste, and Vent (DWV) Plastic Fittings Patterns, 1992; IBR approved for § 3280.604(c) .(21) ASTM D3679-09a, Standard Specification for Rigid Poly (Vinyl Chloride) (PVC) Siding, approved November 1, 2009; IBR approved for §§ 3280.304(b) ; 3280.309(b).(22) ASTM D3953-97, Standard Specification for Strapping, Flat Steel, and Seals, approved April 10, 1997; IBR approved for §§ 3280.304(b) ; 3280.306(g) .(23) ASTM D4442-07, Standard Test Methods for Direct Moisture Content Measurement of Wood and Wood-Base Materials, approved November 15, 2007; IBR approved for § 3280.304(b) .(24) ASTM D4444-13, Standard Test Method for Laboratory Standardization and Calibration of Hand-Held Moisture Meters, approved April 1, 2013; IBR approved for § 3280.304(b) .(25) ASTM D4635-01, Standard Specification for Polyethylene Films Made from Low-Density Polyethylene for General Use and Packaging Applications, approved June 10, 2001; IBR approved for § 3280.611(d) .(26) ASTM D4756-06, Standard Practice for Installation of Rigid Poly(Vinyl Chloride) (PVC) Siding and Soffit, approved April 1, 2006; IBR approved for §§ 3280.304(b) ; 3280.309(c).(27) ASTM D6007-14, Standard Test Method for Determining Formaldehyde Concentrations in Air from Wood Products Using a Small Air Chamber, approved October 1, 2014; IBR approved for § 3280.406(b) .(28) ASTM D7254-07, Standard Specification for Polypropylene (PP) Siding, January 1, 2007; IBR approved for §§ 3280.304(b) ; 3280.309(c).(29) ASTM E84-01, Standard Test Method for Surface Burning Characteristics of Building Materials, 2001; IBR approved for § 3280.203(a) .(30) ASTM E90-09, Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements, approved July 1, 2009; IBR approved for § 3280.115(b).(31) ASTM E96/E96M-13, Standard Test Methods for Water Vapor Transmission of Materials, approved November 1, 2013; IBR approved for § 3280.504(a) and (c) .(32) ASTM E119-14, Standard Test Methods for Fire Tests of Building Construction and Materials, approved October 1, 2014; IBR approved for §§ 3280.215(a) and (d); 3280.304(b) ; 3280.1003(a) .(33) ASTM E162-94, Standard Test Method for Surface Flammability of Materials Using a Radiant Heat Energy Source, 1994; IBR approved for § 3280.203(a) .(34) ASTM E492-09, Standard Test Method for Laboratory Measurement of Impact Sound Transmission Through Floor-Ceiling Assemblies Using the Tapping Machine, approved April 1, 2009; IBR approved for § 3280.115(b).(35) ASTM E773-97, Standard Test Methods for Accelerated Weathering of Sealed Insulating Glass Units, 1997; IBR approved for § 3280.403(d) .(36) ASTM E774-97, Standard Specification for the Classification of the Durability of Sealed Insulating Glass Units, 1997; IBR approved for § 3280.403(d) .(37) ASTM E814-13, Standard Test Method for Fire Tests of Penetration Firestop Systems, approved November 1, 2013; IBR approved for § 3280.215(d).(38) ASTM E1333-14, Standard Test Method for Determining Formaldehyde Concentrations in Air and Emission Rates from Wood Products Using a Large Air Chamber, approved October 1, 2014; IBR approved for § 3280.406(b) .(39) ASTM F628-91, Standard Specification for Acrylonitrile-Butadiene-Styrene (ABS) Schedule 40, Plastic Drain, Waste, and Vent Pipe with a Cellular Core, 1991; IBR approved for § 3280.604(c) .(40) ASTM F876-10, Standard Specification for Crosslinked Polyethylene (PEX) Tubing, approved February 10, 2010; IBR approved for § 3280.604(c) .(41) ASTM F877-07, Standard Specification for Crosslinked Polyethylene (PEX) Plastic Hot- and Cold-Water Distribution Systems, approved February 1, 2007; IBR approved for § 3280.604(c) .(o) American Wood Council (AWC), 222 Catoctin Circle SE, Suite 201, Leesburg, VA 20175; telephone: 202-463-2766; website: www.awc.org.(1) AWC NDS-2015, National Design Specifications for Wood Construction with Supplement; IBR approved for §§ 3280.215(a); 3280.304(b) : (i) ANSI/AWC NDS-2015, 2015 Edition, ANSI-approved September 30, 2014; and(ii) NDS Supplement, Design Values for Wood Construction, 2015 Edition, November 2014.(2) Span Tables for Joists and Rafters: American Softwood Lumber Standard (PS 20-10) Sizes, 2012 Edition (AWC-2012-Span Tables for Joists and Rafters); IBR approved for § 3280.304(b) .(3) Design Values for Joists and Rafters, Supplement to Span Tables for Joists and Rafters (2012 Edition), March 2013 (AWC-2012 Design Values for Joists and Rafters); IBR approved for § 3280.304(b) .(p) Cast Iron Soil Pipe Institute (CISPI), 1064 Delaware Avenue SE, Atlanta, GA 30316; telephone: 404-622-0073; fax: 404-973-2845; website: www.cispi.org/.(1) CISPI-301-90, Standard Specification for Hubless Cast Iron Soil Pipe and Fittings for Sanitary and Storm Drain, Waste, and Vent Piping Applications; IBR approved for § 3280.604(c) .(2) CISPI-HSN-85, Specification for Neoprene Rubber Gaskets for HUB and Spigot Cast Iron Soil Pipe and Fittings; IBR approved for §§ 3280.604(c) , 3280.611(d) .(q) Composite Panel Association (formerly the American Hardboard Association), 19465 Deerfield Ave, Suite 306, Leesburg, VA 20176; telephone: 703-724-1128; website: compositepanel.org.(1) ANSI A135.4-2012, Basic Hardboard, approved June 8, 2012; IBR approved for § 3280.304(b) .(2) ANSI A135.5-2012, Prefinished Hardboard Paneling, approved March 29, 2012; IBR approved for § 3280.304(b) .(3) ANSI A135.6-2012 (R2020), Engineered Wood Siding, Reaffirmation approved March 13, 2020; IBR approved for § 3280.304(b) .(4) ANSI A208.1-2009, Particleboard, approved February 2, 2009; IBR approved for § 3280.304(b) .(r) CSA Group, formerly known as the Canadian Standards Association (CSA), 178 Rexdale Boulevard, Toronto, ON, M9W 1R3, Canada; telephone: 216-524-4990; website: www.csagroup.org.(1) AAMA/WDMA/CSA 101/I.S.2/A440-17, North American Fenestration Standard/Specification for Windows, Doors, and Skylights, revised September 2018; IBR approved for §§ 3280.304(b) ; 3280.403(b) and (e) ; 3280.404(b) and (e) ; 3280.405(b) and (e) .(2) ANSI LC 1-2014/CSA 6.26-2014, Fuel gas piping systems using corrugated stainless steel tubing, Published March 2014 (ANSI LC 1); IBR approved for § 3280.705(b) .(3) ANSI Z21.1-2016/CSA 1.1-2016, household cooking gas appliances, Published February 2016 (ANSI Z21.1); IBR approved for § 3280.703(a) .(4) ANSI Z21.5.1-2015/CSA 7.1-2015, gas clothes dryers, volume I, type 1 clothes dryers, Published January 2015 (ANSI Z21.5.1); IBR approved for § 3280.703(a) .(5) ANSI Z21.10.1-2014/CSA 4.1-2014, Gas water heaters, volume I, storage water heaters with input ratings of 75,000 BTU per hour or less, Published November 2014 (ANSI Z21.10.1); IBR approved for §§ 3280.703(a) ; 3280.707(d) .(6) ANSI Z21.10.3-2014/CSA 4.3-2014, Gas-fired water heaters, volume III, storage water heaters with input ratings above 75,000 BTU per hour, circulating and instantaneous, Published August 2014 (ANSI Z21.10.3); IBR approved for § 3280.703(a) .(7) ANSI Z21.15-2009 (reaffirmed 2019)/CSA 9.1-2009 (reaffirmed 2019), American National Standard/CSA Standard for Manually Operated Gas Valves for Appliances, Appliance Connector Valves and Hose End Valves, Second Edition-2009, Published July 2009 (ANSI Z21.15); IBR approved for §§ 3280.703(c) ; 3280.705(c) and (l) .(8) ANSI Z21.19-2014/CSA1.4-2014, Refrigerators using gas fuel, Published May 2014 (ANSI Z21.19); IBR approved for § 3280.703(a) .(9) ANSI Z21.20-2014 (reaffirmed 2019)/CAN/CSA C22.2 No.60730-2-5-14 (reaffirmed 2019), Automatic electrical controls for household and similar use-Part 2-5: Particular requirements for automatic electrical burner control systems, Reprinted September 30, 2019 (ANSI Z21.20); IBR approved for § 3280.703(d) .(10) ANSI Z21.21-2012/CSA 6.5-2012, Automatic valves for gas appliances, Fourth Edition-2012, Published November 2012 (ANSI Z21.21); IBR approved for § 3280.703(d) .(11) ANSI Z21.23, Gas Appliance Thermostats and addenda; IBR approved for § 3280.703(d) : (i) ANSI Z21.23-2000, Tenth Edition-2000, ANSI-approved September 27, 2000;(ii) ANSI Z21.23a-2003, Addenda to the Tenth Edition of Gas Appliance Thermostats, ANSI-approved September 17, 2003; and(iii) ANSI Z21.23b-2005, Addenda to the Tenth Edition of ANSI Z21.23-2000 and Addenda Z21.23a-2003: Gas Appliance Thermostats, ANSI-approved March 9, 2005.(12) ANSI Z21.24-2006/CSA 6.10-2006 (reaffirmed 2011), Connectors for Gas Appliances, Third Edition-2006, Published February 2007 (ANSI Z21.24); IBR approved for § 3280.703(c) .(13) ANSI Z21.40.1-1996/CGA 2.91-M96, Gas-Fired, Heat Activated Air Conditioning and Heat Pump Appliances); IBR approved for §§ 3280.703(a) ; 3280.714(a) .(14) ANSI Z21.47-2012/CSA 2.3-2012, Gas-fired central furnaces, Sixth Edition-2012, ANSI-approved March 27, 2012 (ANSI Z21.47); IBR approved for § 3280.703(a) .(15) ANSI Z21.75-2007/CSA 6.27-2007 (reaffirmed 2012), Connectors for Outdoor Gas Appliances And Manufactured Homes, Second Edition, Published 2007 (ANSI Z21.75); IBR approved for § 3280.703(a) .(s) Decorative Hardwoods Association (formerly HPVA), 42777 Trade West Drive, Sterling, VA 20166; telephone: 703-435-2900; fax: 703-435-2537; website: www.decorativehardwoods.org.(1) ANSI/HPVA HP-1-2009, American National Standard for Hardwood and Decorative Plywood, approved January 26, 2010; IBR approved for § 3280.304(b) .(2) HP-SG-96, Structural Design Guide for Hardwood Plywood Wall Panels, revised 1996; IBR approved for § 3280.304(b) .(t) FS-Federal Specifications, General Services Administration, Specifications Branch, Room 6039, GSA Building, 7th and D Streets SW, Washington, DC 20407. (1) FS WW-P-541E/GEN-1980, Plumbing Fixtures (General Specifications); IBR approved for § 3280.604(c) .(2) FS ZZ-R-765B-1970, Silicone Rubber, (with 1971 Amendment); IBR approved for § 3280.611(d) .(3) TT-P-1536A, Plumbing Fixture Setting Compound, July 8, 1975; IBR approved for § 3280.604(b) .(u) Fenestration and Glazing Industry Alliance (FGIA) (formerly known as American Architectural Manufacturers Association (AAMA)), 1900 E Golf Road, Schaumburg, Illinois 60173; website: www.fgiaonline.org.(1) AAMA 1503.1-88, Voluntary Test Method for Thermal Transmittance and Condensation Resistance of Windows, Doors, and Glazed Wall Sections; IBR approved for § 3280.508(e) .(2) AAMA 1600/I.S.7-00, Voluntary Specification for Skylights, 2003; IBR approved for § 3280.305(c) .(3) AAMA 1701.2-12, Voluntary Standard for Utilization in Manufactured Housing for Primary Windows and Sliding Glass Doors, published November 2012; IBR approved for §§ 3280.403(b) and (e) ; 3280.404(b) and (e) .(4) AAMA 1702.2-12, Voluntary Standard for Utilization in Manufactured Housing for Swinging Exterior Passage Doors, published November 2012, including errata dated February 16, 2015 and March 29, 2017; IBR approved for §§ 3280.403(e) ; 3280.405(b) and (e) .(5) AAMA 1704-12, Voluntary Standard Egress Window Systems for Utilization in Manufactured Housing, published November 2012; IBR approved for § 3280.404(b) and (e) .(v) HUD User, 11491 Sunset Hills Road, Reston, VA 20190-5254; telephone: 800-245-2691; website: www.huduser.gov.(1) HUD User No. 0005945, Overall U-values and Heating/Cooling Loads-Manufactured Homes, February 1992; IBR approved for § 3280.508(b) .(w) IIT Research Institute (IITRI), 10 West 35th Street, Chicago, IL 60616; telephone: 312-567-4000; website: www.iitri.org/.(1) IITRI Fire and Safety Research Project J-6461 "Development of Mobile Home Fire Test Methods to Judge the Fire-Safe Performance of Foam Plastic Sheathing and Cavity Insulation", 1979; IBR approved for § 3280.207(a) .(x) International Association of Plumbing and Mechanical Officials (IAPMO), 4755 East Philadelphia Street, Ontario, CA 91716; telephone: 909-472-4100; fax: 909-472-4150; website: www.iapmo.org.(1) IAPMO PS 2-89, Material and Property Standard for Cast Brass and Tubing P-Traps. 1989; IBR approved for § 3280.604(c) .(2) IAPMO PS 4-90, Material and Property Standard for Drains for Prefabricated and Precast Showers, 1990; IBR approved for § 3280.604(c) .(3) IAPMO PS 5-84, Material and Property Standard for Special Cast Iron Fittings, 1984; IBR approved for § 3280.604(c) .(4) IAPMO PS 9-84, Material and Property Standard for Diversion Tees and Twin Waste Elbow, 1984; IBR approved for § 3280.604(c) .(5) IAPMO PS 14-89, Material and Property Standard for Flexible Metallic Water Connectors, 1989; IBR approved for § 3280.604(c) .(6) IAPMO PS 23-89, Material and Property Standard for Dishwasher Drain Airgaps, 1989; IBR approved for § 3280.604(c) .(7) IAPMO PS 31-91, Material and Property Standards for Backflow Prevention Assemblies, 1989; IBR approved for § 3280.604(c) .(8) IAPMO TS 9-2003, Standard for Gas Supply Connectors for Manufactured Homes, revised 2003; IBR approved for § 3280.703(c) .(9) IAPMO TSC 22-85, Standard for Porcelain Enameled Formed Steel Plumbing Fixtures; IBR approved for § 3280.604(c) .(y) International Code Council Evaluation Service (ICC-ES), 3060 Saturn Street, Suite 100, Brea, CA 92821; telephone: 800-423-6587; fax: 562-695-4694; website: www.icc-es.org.(1) ESR 1539, ICC-ES Evaluation Report; Power Driven Staples and Nails, reissued June 2014; IBR approved for § 3280.304(b) .(z) International Organization for Standardization, Chemin de Blandonnet 8, CP 401-1214 Vernier, Geneva, Switzerland; telephone: +41 22 749 01 11; website: www.iso.org.(1) ISO/IEC 17065:2012(E) Conformity assessment-requirements for bodies certifying products, processes and services, approved September 15, 2012; IBR approved for §§ 3280.403(e) ; 3280.404(e) ; 3280.405(e) .(aa) Military Specifications and Standards, Naval Publications and Forms Center (MIL), 5801 Tabor Avenue, Philadelphia, PA 19120; website: www.dsp.dla.mil/.(1) MIL-L-10547E-1975, Liners, Case, and Sheet, Overwrap; Water-Vapor Proof or Waterproof, Flexible, 1975; IBR approved for § 3280.611(d) .(bb) National Electrical Manufacturers Association (NEMA), 1300 North 17th Street, Suite 1752, Arlington, VA 22209; telephone: 703-841-3200; fax: 703-841-5900; website: www.nema.org/Pages/default.aspx.(1) ANSI/NEMA WD-6-1997 Wiring Devices-Dimensional Specifications, 1997; IBR approved for § 3280.803(f) .(cc) National Fenestration Rating Council (NFRC), 6305 Ivy Lane, Suite 140, Greenbelt, MD 20770; telephone: 301-589-1776; fax: 301-589-3884; website: www.nfrc.org.(1) NFRC 100, Procedure for Determining Fenestration Product U-factors, 1997 Edition, 1997; IBR approved for § 3280.508(e) .(dd) National Fire Protection Association (NFPA), 1 Batterymarch Park, Quincy, MA 02269; telephone: 617-770-3000; fax: 617-770-0700; website: www.nfpa.org.(1) NFPA 13D, Standard for the Installation of Sprinkler Systems in One- and Two- Family Dwellings and Manufactured Homes, 2010 Edition, approved August 26, 2009; IBR approved for § 3280.214(b), (e) and (o).(2) NFPA 31, Standard for the Installation of Oil-Burning Equipment, 2011 Edition, approved January 3, 2011; IBR approved for §§ 3280.703(d) ; 3280.707(f) .(3) NFPA 54/ANSI Z223.1, National Fuel Gas Code, 2015 Edition, approved September 3, 2014; IBR approved for § 3280.703(d) .(4) NFPA 58, Liquefied Petroleum Gas Code, 2014 Edition, approved August 1, 2013; IBR approved for § 3280.703(d) .(5) NFPA 70, National Electrical Code, 2014 Edition, approved August 21, 2013; IBR approved for §§ 3280.607(c) ; 3280.801(b) ; 3280.803(k) ; 3280.804(a) and (k) ; 3280.805(a) ; 3280.806(a) and (d) ; 3280.807(c) ; 3280.808(a), (l), and (p) ; 3280.810(b) ; 3280.811(b) .(6) NFPA 90B, Standard for the Installation of Warm Air Heating and Air-Conditioning Systems, 2015 Edition, approved May 19, 2015; IBR approved for § 3280.703(d) .(7) NFPA 220, Standard on Types of Building Construction, Chapter 2: definitions of "limited combustible" and "noncombustible material", 1995 Edition; IBR approved for § 3280.202 .(8) NFPA 253, Standard Method of Test for Critical Radiant Flux of Floor Covering Systems Using a Radiant Heat Energy Source, 2000; IBR approved for § 3280.207(c) .(9) NFPA 255, Standard Method of Test of Surface Burning Characteristics of Building Materials, 1996; IBR approved for §§ 3280.203(a) ; 3280.207(a) .(10) NFPA 720, Standard for Installation of Carbon Monoxide Detection (CO) Detection and Warning Equipment, 2015 Edition, Copyright 2014; IBR approved for § 3280.211(b) .(ee) U.S. Department of Commerce, National Institute of Standards and Technology (NIST), Office of Engineering Standards, Room A-166, Technical Building, Washington, DC 20234 and Voluntary Product Division, 100 Bureau Drive, Stop 2100, Gaithersburg, MD 20899-2100; telephone: 301-975-4000; fax: 301-975-4715; website: www.nist.gov.(1) Voluntary Product Standard PS 1-09, Structural Plywood (With Typical APA Trademarks), effective May 1, 2009 (NIST PS 1); IBR approved for § 3280.304(b) .(2) Voluntary Product Standard PS 2-04, Performance Standard for Wood-Based Structural-Use Panels, December 2004 (NIST PS 2); IBR approval for § 3280.304(b) .(ff) National Sanitation Foundation (NSF), 789 North Dixboro Road, Ann Arbor, MI 48105; telephone: 734-769-8010 fax: 734-769-0109; website: www.nsf.org.(1) ANSI/NSF 14-1990, Plastic Piping Components and Related Materials; IBR approved for § 3280.604(c) .(2) ANSI/NSF 24-1988, Plumbing System Components for Manufactured Homes and Recreational Vehicles; IBR approved for § 3280.604(c) .(3) ANSI/NSF 61-2001, Drinking Water System Components-Health Effects; IBR approved for § 3280.604(b) .(gg) Resources, Applications, Designs, & Controls (RADCO), 3220 East 59th Street, Long Beach, CA 90805; telephone: 562-272-7231; fax: 562-529-7513; website: www.radcoinc.com.(1) RADCO DS-010-91, Decorative Gas Appliances for Installation in Solid Fuel Burning Fireplaces, May 1991; IBR approved for § 3280.703(a) .(hh) Society of Automotive Engineers (SAE), 400 Commonwealth Drive, Warrendale, PA 15096; telephone: 724-776-0790; website: www.sae.org/.(1) SAE J533 (REV SEP 2007), (R) Flares for Tubing, revised September 2007; IBR approved for §§ 3280.703(d) ; 3280.705(f) .(ii) Steel Joist Institute (SJI), 234 West Cheves Street, Florence, SC 29501; telephone: 843-407-4091; website: www.steeljoist.org.(1) SJI 1994, Standard Specifications Load Tables and Weight Tables for Steel Joists and Girders, Fortieth Edition, 1994; IBR approved for § 3280.304(b) .(jj) Truss Plate Institute (TPI), 2670 Crain Highway, Suite 203, Waldorf, MD 20601; telephone: 240-587-5582; fax: 866-501-4012; website: www.tpinst.org.(1) TPI 1, National Design Standard for Metal Plate Connected Wood Truss Construction, Commentary, and Appendices, copyright 2008; IBR approved for § 3280.304(b) : (ii) TPI 1-2007 Commentary and Appendices.(kk) Underwriters' Laboratories, Inc. (UL), 333 Pfingsten Road, Northbrook, IL 60062; telephone: 847-272-8800; fax: 847-509-6257; website: www.ul.com.(1) UL 94-1996, with 2001 revisions, Test for Flammability of Plastic Materials for Parts in Devices and Appliances, Fifth Edition; IBR approved for § 3280.715(e) .(2) UL 103, Standard for Safety, Factory-Built Chimneys for Residential Type and Building Heating Appliances, Eleventh Edition, dated October 15, 2010; IBR approved for § 3280.703(d) .(3) UL 109, Tube Fittings for Flammable and Combustible Fluids, Refrigeration Service, and Marine Use, Sixth Edition, dated June 19, 1997, including revisions through January 11, 2005; IBR approved for § 3280.703(d) .(4) UL 127-1996, with 1999 revisions, Factory-Built Fireplaces, Seventh Edition; IBR approved for § 3280.703(d) .(5) UL 174, Standard for Safety Household Electric Storage Tank Water Heaters, Eleventh Edition, dated April 29, 2004, including revisions through December 15, 2016; IBR approved for § 3280.703(a) .(6) UL 181, Standard for Safety Factory-Made Air Ducts and Air Connectors, Eleventh Edition, dated July 25, 2013, including revisions through April 18, 2017; IBR approved for §§ 3280.702 , 3280.703(d) ; 3280.715(a) and (e) .(7) UL 181A, Standard for Safety Closure Systems for Use with Rigid Air Ducts, Fourth Edition, dated January 8, 2013, including revisions through March 22, 2017; IBR approved for §§ 3280.703(d) ; 3280.715(c) .(8) UL 181B, Standard for Safety Closure Systems for use with Flexible Air Ducts and Air Connectors, First Edition, 1995, with 1998 revisions; IBR approved for §§ 3280.703(d) ; 3280.715(c) .(9) UL 217, Single and Multiple Station Smoke Alarms, Fifth Edition, dated January 4, 1999; IBR approved for §§ 3280.209(a) ; 3280.211(a) .(10) UL 263, Standard for Safety Fire Tests of Building Construction and Materials, Fourteenth Edition, dated June 21, 2011, including revisions through January 31, 2019; IBR approved for § 3280.215(a) and (d).(11) UL 268, Smoke Detectors for Fire Protective Signaling Systems, Fourth Edition, dated December 30, 1996, including revisions through January 4, 1999; IBR approved for §§ 3280.209(a) ; 3280.703(a) .(12) UL 307A, Liquid Fuel Burning Heating Appliances for Manufactured Homes and Recreational Vehicles, Eighth Edition, dated February 25, 2009; IBR approved for §§ 3280.703(a) ; 3280.707(f) .(13) UL 307B, Gas Burning Heating Appliances for Manufactured Homes and Recreational Vehicles, Fifth Edition, dated October 31, 2006, including revisions through September 17, 2013; IBR approved for § 3280.703(a) .(14) UL 311, Roof Jacks for Manufactured Homes and Recreational Vehicles, Eighth Edition, 1994, with 1998 revisions; IBR approved for § 3280.703(d) .(15) UL 441, Gas Vents, Tenth Edition, dated March 5, 2010, including revisions through June 12, 2014; IBR approved for § 3280.703(d) .(16) UL 499, Standard for Safety Electric Heating Appliances, Fourteenth Edition, dated November 7, 2014, including revisions through February 23, 2017; IBR approved for § 3280.703(a) .(17) UL 569, Standard for Safety Pigtails and Flexible Hose Connectors for LP-Gas, 2013; IBR approved for §§ 3280.703(d) ; 3280.705(l) .(18) UL 737, Fireplace Stoves, Eighth Edition, 1996, with 2000 revisions; IBR approved for § 3280.703(d) .(19) UL 923 Microwave Cooking Appliances, Fifth Edition, May 23, 2002; IBR approved for § 3280.204(c) .(20) UL 1042, Standards for Safety Electric Baseboard Heating Equipment, Fifth Edition, dated August 31, 2009, including revisions through December 14, 2016; IBR approved for § 3280.703(a) .(21) UL 1096, Electric Central Air Heating Equipment, Fourth Edition, 1986, with revisions July 16, 1986, and January 30, 1988; IBR approved for § 3280.703(a) .(22) UL 1479, Fire Tests of Penetration Firestops, Fourth Edition, dated June 10, 2015; IBR approved for § 3280.215(d).(23) UL 1482, Solid-Fuel Type Room Heaters, Fifth Edition, 1996, with 2000 revisions; IBR approved for § 3280.703(d) .(24) UL 2021-1997. Fixed and Location-Dedicated Electric Room Heaters, Second Edition, with 1998 revisions; IBR approved for § 3280.703(a) .(25) UL 2034, Standard for Safety Single and Multiple Station Carbon Monoxide Alarms, Fourth Edition, dated March 31, 2017; IBR approved for §§ 3280.209(a) ; 3280.211(a) ; 3280.703(a) .(26) UL 60335-2-40-2012, Standard for Safety: Household and Similar Electrical Appliances-Part 2-40: Particular Requirements for Electrical Heat Pumps, Air-Conditioners and Dehumidifiers, First Edition, dated November 30, 2012; IBR approved for § 3280.703(a) .(ll) Underwriters' Laboratories of Canada (ULC), 7 Underwriters Road, Toronto, Ontario, Canada M1 R 3A9; telephone: 866-937-3852; fax: 416-757-8727; website: www.ul.com/canada/eng/pages/.(1) CAN/ULC S102.2-M88, Standard Method of Test for Surface Burning Characteristics of Floor Coverings and Miscellaneous Materials and Assemblies, Fourth Edition, April 1988; IBR approved for § 3280.207(b) .(mm) Window and Door Manufacturers Association (WDMA), 2001 K Street NW, 3rd Floor North, Washington, DC 20006; telephone: 202-367-1157; website: www.wdma.com.(1) WDMA I.S.4-09, Industry Specification for Preservative Treatment for Millwork, copyright 2009; IBR approved for § 3280.405(c) . 78 FR 73976 , Dec. 9, 2013, as amended at 79 FR 31863 , June 3, 2014; 85 FR 5566 , Jan. 31, 2020; 86 FR 2516 , Jan. 12, 2021 85 FR 5566 , 3/2/2020; 86 FR 2516 , 3/15/2021; 89 FR 75737 , 3/17/2025