43114 Federal Register / Vol. 87, No. 137 / Tuesday, July 19, 2022 / Proposed Rules 

DEPARTMENT OF HOUSING AND 

URBAN DEVELOPMENT 

24 CFR Parts 3280, 3282, 3285, and 

3286 

[Docket No. FR–6233–P–01] 

RIN 2502–AJ58 

Manufactured Home Construction and 

Safety Standards 

AGENCY: Office of the Assistant 

Secretary for Housing—Federal Housing 

Commissioner, HUD. 

ACTION: Proposed rule. 

SUMMARY: This proposed rule would 

amend the Federal Manufactured Home 

Construction and Safety Standards (the 

Construction and Safety Standards) by 

adopting the fourth and fifth group of 

recommendations made to HUD by the 

Manufactured Housing Consensus 

Committee (MHCC). This rule would 

also amend the Manufactured Home 

Procedural and Enforcement 

Regulations, the Model Manufactured 

Home Installation Standards and the 

Manufactured Home Installation 

Program regulations. The National 

Manufactured Housing Construction 

and Safety Standards Act of 1974 (the 

Act), as amended by the Manufactured 

Housing Improvement Act of 2000, 

requires HUD to publish in the Federal 

Register any proposed revised 

Construction and Safety Standard 

submitted by the MHCC. The MHCC has 

prepared and submitted to HUD its 

fourth and fifth groups of 

recommendations to improve various 

aspects of the Construction and Safety 

Standards. HUD has reviewed those 

proposals and has made a number of 

editorial revisions to them. These 

recommendations are being published 

to provide notice of the proposed 

revisions and an opportunity for public 

comment. 

DATES: Comment Due Date: September 

19, 2022. 

ADDRESSES: Interested persons are 

invited to submit comments regarding 

this rule to the Office of General 

Counsel, Regulations Division, 

Department of Housing and Urban 

Development, 451 7th Street SW, Room 

10276, Washington, DC 20410–0500. All 

submissions should refer to the above 

docket number and title. Submission of 

public comments may be carried out by 

hard copy or electronic submission. 

1. Submission of Hard Copy 

Comments. Comments may be 

submitted by mail or hand delivery. 

Each commenter submitting hard copy 

comments, by mail or hand delivery, 

should submit comments to the address 

above, addressed to the Regulations 

Division. Due to security measures at all 

federal agencies, submission of 

comments by mail often results in 

delayed delivery. To ensure timely 

receipt of comments, HUD recommends 

that any comments submitted by mail be 

submitted at least 2 weeks in advance of 

the public comment deadline. All hard 

copy comments received by mail or 

hand delivery are a part of the public 

record and will be posted to 

www.regulations.gov without change. 

2. Electronic Submission of 

Comments. Interested persons may 

submit comments electronically through 

the Federal eRulemaking Portal at 

www.regulations.gov. HUD strongly 

encourages commenters to submit 

comments electronically. Electronic 

submission of comments allows the 

commenter maximum time to prepare 

and submit a comment, ensures timely 

receipt by HUD, and enables HUD to 

make them immediately available to the 

public. Comments submitted 

electronically through the 

www.regulations.gov website can be 

viewed by other commenters and 

interested members of the public. 

Commenters should follow the 

instructions provided on that site to 

submit comments electronically. 

Note: To receive consideration as public 

comments, comments must be submitted 

through one of the two methods specified 

above. Again, all submissions must refer to 

the docket number and title of the rule. 

3. No Facsimile Comments. Facsimile 

(FAX) comments are not acceptable. 

4. Public Inspection of Public 

Comments. All properly submitted 

comments and communications 

submitted to HUD will be available for 

public inspection and copying between 

8 a.m. and 5 p.m. weekdays at the above 

address, or at www.regulations.gov. 

HUD strongly encourages the public to 

view the docket file at 

www.regulations.gov. Due to security 

measures at the HUD Headquarters 

building, an advance appointment to 

review the public comments must be 

scheduled by calling the Regulations 

Division at 202–402–3055 (this is not a 

toll-free number). Individuals with 

speech or hearing impairments may 

access this number via TTY by calling 

the Federal Relay Service at 800–877– 

8339 (this is a toll-free number). Copies 

of all comments submitted are available 

for inspection and downloading at 

www.regulations.gov. 

FOR FURTHER INFORMATION CONTACT: 

Teresa B. Payne, Administrator, Office 

of Manufactured Housing Programs, 

Office of Housing, Department of 

Housing and Urban Development, 451 

7th Street SW, Washington, DC 20410; 

telephone (202) 402–2698 (this is not a 

toll-free number). Persons with hearing 

or speech impairments may access this 

number via TTY by calling the Federal 

Relay Service at (800) 877–8389 (this is 

a toll-free number). 

SUPPLEMENTARY INFORMATION: 

I. Background 

The National Manufactured Housing 

Construction and Safety Standards Act 

of 1974 (42 U.S.C. 5401–5426) (the Act) 

authorizes HUD to establish and amend 

the Federal Manufactured Home 

Construction and Safety Standards (the 

Construction and Safety Standards or 

MHCSS) codified in title 24 of the Code 

of Federal Regulations (CFR), part 3280. 

The Act was amended by the 

Manufactured Housing Improvement 

Act of 2000 (Pub. L. 106–569, Approved 

December 27, 2000) which expanded 

the purposes of the Act, created the 

Manufactured Housing Consensus 

Committee (MHCC), a consensus 

committee responsible for providing 

HUD recommendations to adopt, revise 

and interpret HUD’s Construction and 

Safety Standards, and established the 

MHCC and regulatory development 

process. HUD’s Construction and Safety 

Standards only apply to the design, 

construction, and installation of new 

manufactured homes. 

The MHCC held its first meeting in 

August of 2002 and began work on 

reviewing possible revisions to the 

Construction and Safety Standards. The 

MHCC developed its own priorities for 

preparing proposed revisions for HUD 

to consider. As the MHCC proceeded, 

proposed revisions to the Construction 

and Safety Standards were divided into 

sets. 

This proposed rule is based on the 

fourth and fifth sets of MHCC 

recommendations to improve various 

aspects of the Construction and Safety 

Standards. HUD reviewed those 

recommendations submitted by the 

MHCC and adopted them after making 

editorial revisions and some additions. 

The following is a discussion of the 

specific revisions to the Construction 

and Safety Standards that are included 

in this proposed rule. 

II. Proposed Changes 

The proposed rule would revise 24 

CFR part 3280, the Construction and 

Safety Standards, and would also revise 

the incorporated by reference standards, 

where indicated. It also proposes 

revisions to HUD’s Procedural and 

Enforcement Regulations (24 CFR part 

3282), Model Manufactured Home 

Installation Standards (24 CFR part 

3285), and Manufactured Home 


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Installation Program (24 CFR part 3286). 

Many of the proposed changes would 

codify existing building practices or 

conform HUD standards to other 

existing residential building codes. As 

identified in the summary table below, 

HUD has identified eight (8) standards 

in this proposed rule that would have 

an economic impact on the production 

costs of manufactured homes: changes 

to allowed moisture content of treated 

lumber, modifications to the 

temperature ratings for air ducts, adding 

a requirement for the water resistive 

barrier, modifications to kitchen cabinet 

fire protection, changes to the maximum 

distance from the fixture trap to vent, 

under-chassis line-voltage wiring 

protection, updated reference standards 

allowing reduced design values for 

certain lumber, and modifications to 

structural design requirements for attics. 

HUD is requesting comment whether 

any of the other proposed changes 

would have an economic impact or 

impose additional costs on the 

production of manufactured housing, 

specifically on the analysis supporting 

this proposed rule and the assumptions 

used. 

BILLING CODE 4210–67–P 


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BILLING CODE 4210–67–C 

The following is a discussion of the 

specific revisions to the Construction 

and Safety Standards that are proposed 

by this rule. 

A. General Update of the Standards and 

New Standards Incorporated by 

Reference 

HUD proposes to revise the 

definitions for ‘‘Certification label’’ and 

‘‘Dwelling unit’’ in § 3280.2 to correct 

references and clarify the criteria for 

defining dwelling units. HUD proposes 

to add additional definitions for 

‘‘Dwelling,’’ ‘‘Multipurpose fire 

sprinkler system,’’ ‘‘Stand-alone fire 

sprinkler system,’’ and ‘‘Water resistive 

barrier’’ to further clarify terms 

regarding standards revisions and 

standards incorporated by reference that 

are recommended by the MHCC. 

A significant goal of this proposed 

rule is to update standards incorporated 

by reference under § 3280.4 to align the 

regulations at 24 CFR part 3280 to more 

current building codes and practices. As 

a result, this rule proposes to revise 70 

current standards, add 16 new 

standards, and incorporate by reference 

2 standards in a new location, for a total 

of 88 standards, under § 3280.4 (see 

Table 2 for more detail and 

information). Notable changes to the 

reference standards being added or 

revised are updated references for 

unitary air-conditioning and air-source 

heat pump equipment (NSI/AHRI 

Standard 210/240–2008 with Addenda 1 

and 2); gas fired central furnaces (ANSI 

Z21.47); heating and cooling equipment 

and systems (UL 1995); and safety of 

household and electronic appliances 

(UL 60335–2–34). New standards will 

allow for the use of more modern gasfired appliances, such as tankless water 

heaters (ANSI Z21.10.3) and will 

eliminate the need for Alternative 

Construction (AC) letters in some cases. 

Many paragraphs within § 3280.4 are 

unchanged in content but are being 

revised to reflect a redesignated outline 

structure. 

HUD also proposes to amend § 3280.5 

to provide for multi-dwelling unit 

manufactured homes and reinforce the 

requirement for each manufactured 

home dwelling unit to bear a data plate 

and to include an updated statement on 

the Wind Zone Map that references an 

updated ASCE/SEI 7–05 standard for 

the anchoring and foundation system of 

the unit. Consistent with a 2015 

determination made by the MHCC, HUD 

is proposing a maximum of three 

dwelling units for a multi-dwelling unit 

manufactured home. The MHCC based 

its determination on ensuring 

consistency with a similar state code. 

HUD is interested in public comment 

specific to this maximum provision for 

three dwelling units, including benefits 

and challenges if a four unit maximum 

were considered and how any conflict 

with differing state maximums would be 

handled. HUD is also making a 

conforming change to § 3282.8, by 

removing paragraph (l). 

B. Planning Considerations 

The proposed rule would amend 

§ 3280.102 to add definitions for ‘‘Air, 

exhaust,’’ ‘‘Air, outdoor,’’ ‘‘Exhaust 

system,’’ ‘‘Mechanical ventilation,’’ 

‘‘Natural ventilation,’’ ‘‘Supply system,’’ 

and ‘‘Ventilation’’. The proposed rule 

would clarify the terminology utilized 

for outlining the airflow and mechanical 


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ventilation system requirements for a 

manufactured home, which is described 

in the proposed paragraph changes 

under § 3280.103. The proposed 

changes would specify the allowance for 

local exhaust systems to be utilized in 

kitchens and bathrooms and clarify the 

distance requirement for range and 

cooktop exhaust systems to be located at 

no more than three (3) feet apart. HUD 

also is proposing to add clarifications 

regarding the airflow rating that should 

be utilized for design of a home, 

provided that duct sizing meets either 

prescriptive ANSI/ASHRAE standards 

or the ventilation system manufacturer’s 

design criteria. The proposed changes 

would also make editorial revisions to 

§§ 3280.103, 3280.105, 3280.109 and 

3280.115, accommodating design for 

multi-dwelling unit manufactured 

homes. 

The proposed rule would amend the 

provisions for exit doors in § 3280.105 

to accommodate open floorplans, 

update exterior door size requirements 

and would, in § 3280.112, establish a 

30-inch minimum hallway size 

requirement for homes 14 feet in inside 

width or larger. 

The proposed rule would amend 

§ 3280.113 to reflect more current ANSI 

standards (ANSI Z97.1–2009) for safety 

glazing materials and establish new 

soundproofing requirements for multidwelling unit manufactured homes in a 

new section 3280.115. 

C. Fire Safety 

HUD is proposing to amend 

§ 3280.203 to clarify that non-horizontal 

surfaces above the horizontal plane 

formed by the bottom of the range hood 

are not considered to be exposed 

surfaces subject to fire protective 

requirements. In § 3280.204, the 

proposed rule would also clarify the 

requirements for finish materials used 

in range hoods and establish a fire 

spread rating. The proposed rule is 

needed to ensure that the use of 

decorative range hood covers meet the 

fire safety standards in the Construction 

and Safety Standards. It is more 

stringent than model codes for site-built 

one-to-four single family housing, 

which contains no such requirement. 

HUD is proposing to expand the fire 

safety subpart to include guidelines and 

requirements for the design and 

installation of fire sprinkler systems 

when a manufacturer chooses to install 

such a system as outlined in § 3280.214. 

While this proposed rule is not adding 

a requirement that fire sprinkler systems 

be installed, when a manufacturer 

installs a fire sprinkler system, this 

section would establish the 

requirements for the installation of the 

fire sprinkler system in a manufactured 

home. This section would apply to both 

stand-alone and multipurpose fire 

sprinkler systems that do not include 

the use of antifreeze. A back-flow 

preventer is not required to separate a 

stand-alone sprinkler system from the 

home’s water distribution system. 

The proposed rule would establish 

minimum requirements for the design of 

a fire sprinkler system itself to be in 

accordance with NFPA 13D (proposed 

for incorporation by reference in 

proposed § 3280.4) or equivalent. The 

proposed rule would outline required 

sprinkler locations, excepting specific 

areas within a manufactured home, 

temperature ratings and separation from 

heat sources, installation requirements 

for freezing conditions, and the 

maximum areas of coverage for a single 

sprinkler head. The proposed rule 

would also establish requirements for 

installation practices, piping support 

and sizing standards to achieve 

minimum pressure requirements, 

shutoff valves, drainage, minimum flow, 

design flow rates, and operational 

testing. The proposed rule would also 

require the manufacturer to 

permanently affix a Fire Sprinkler 

System Certificate adjacent to the data 

plate and specify on the Fire Sprinkler 

System Certificate the minimum 

required pressure in pounds per square 

inch (psi) and flow rate for the water 

supply system. This proposal was not 

specifically recommended by the MHCC 

but added by HUD to support the 

addition of the requirements proposed 

for multi-dwelling unit manufactured 

homes. 

Per MHCC recommendations, HUD is 

also proposing to add new fire safety 

requirements for multi-dwelling unit 

manufactured homes in § 3280.215. In 

manufactured homes with more than 

one dwelling unit, each dwelling unit 

must be separated from each other by 

wall and floor assemblies having not 

less than a 1-hour fire resistance rating 

when tested in accordance with Chapter 

16 of the National Design Specification 

for Wood Construction, NDS–2015, the 

standards proposed to be incorporated 

by reference under § 3280.4. The 

proposed rule would outline 

requirements for fire-resistant floor/ 

ceiling and wall assemblies and the fire 

resistance rating of supporting 

construction of such assemblies. 

Penetrations of wall or floor-ceiling 

assemblies in multi-dwelling unit 

manufactured homes are required to be 

fire-resistance rated in accordance with 

MHCC recommendations specified in 

the proposed standards under 

§ 3280.215. 

HUD is also including in this 

proposed rule a new section under 

§ 3280.216 outlining draftstopping 

requirements, as recommended by the 

MHCC, for multi-dwelling unit 

manufactured homes. Draftstopping 

standards for single dwelling unit 

manufactured homes were previously 

recommended by MHCC but were not 

included in the prior rulemaking that 

addressed the MHCC 3rd set of 

recommendations (86 FR 2496, January 

12, 2021) due to cost impacts and will 

be added to the agenda of future MHCC 

consideration, as discussed in the 

proposed rule for the prior rulemaking 

(85 FR 5589, 5594, January 31, 2020). 

This proposed rule would apply them to 

the multi-dwelling unit manufactured 

homes, however, since multi-dwelling 

units contain numerous kitchens, 

furnaces, and other causes of residential 

fires, it inherently has a greater risk and 

containment is essential for safety of the 

occupants. This proposal is not 

expected to add additional costs beyond 

those already incurred in the normal 

design and construction process for 

multi-dwelling unit manufactured 

homes. 

D. Body and Frame Requirements 

The proposed rule would amend 

§ 3280.303 to reflect that all 

construction methods used in the 

construction process for manufactured 

homes must conform not only to 

accepted engineering practices, but to 

an approved quality assurance manual 

as required by §§ 3282.203 and 

3282.361(c), to ensure durable, livable, 

and safe housing. This proposal 

underscores the importance and HUD 

prioritization of ensuring compliance 

with effective quality assurance 

standards to enhance and improve the 

construction process and quality of 

manufactured homes. 

The proposed rule would amend 

§ 3280.304 to update the reference 

standards and specifications for steel, 

wood and wood products, unclassified 

materials, and fasteners to allow 

manufacturers and designers to use 

more recent publications and align the 

MHCSS with more current industry 

standards. 

HUD is also proposing to amend 

language under § 3280.305 to update the 

reference for design wind pressures for 

Exposure C from ASCE 7–88 to ASCE/ 

SEI 7–05 that is to be specified based on 

the Basic Wind Zone Map for 

Manufactured Housing, which can be 

used as an alternate option to design 

homes in lieu of using the Table of 

Design Wind Pressures found in 

§ 3280.305. In the MHCC 

recommendations to HUD, the 


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committee recommended that the wind 

pressures included in the Table of 

Design Wind Pressures remain 

unchanged, but requested that ‘‘HUD 

staff work to update the wind speeds 

references’’ that are used to design 

manufactured homes in Wind Zones II 

and III. 

As requested, HUD staff completed a 

general comparison of ASCE 7–88 and 

ASCE 7–05 followed by an in-depth 

analysis to determine the appropriate 

wind speeds for Wind Zones II and III 

that would best align and correlate with 

wind pressures in the Table of Design 

Wind Pressures. As a general 

introduction, historical references to 

wind speed within the MHCSS are 

based on ‘‘fastest mile’’ wind speed 

measurements. These fastest mile wind 

speeds are currently 100 miles per hour 

(mph) for Wind Zone II and 110 mph for 

Wind Zone III. Fastest mile means the 

average speed at which an airborne 

particle would travel a mile in the 

direction of the wind, in mph. However, 

most wind professionals today, 

including ASCE, now use a peak threesecond gust wind speed to define wind 

loads, which is the highest average 

speed measured over a three second 

period of time, in mph. It is important 

to understand this change in both wind 

speed measurement and terminology 

when assessing the new wind speed 

references in this proposed rule. 

In addition to the ASCE 7 update for 

wind speed measurement from ‘‘fastest 

mile’’ to ‘‘three-second gust,’’ ASCE 

updated the mathematical formulas 

used to determine the wind pressures 

and the wind speeds in hurricane-prone 

areas. This review led to the in-depth 

analysis below and the revised wind 

speeds included in this proposed rule. 

HUD performed two different 

methods to determine revised wind 

speeds. The first was to review the HUD 

wind speed/zone map with the wind 

speed map in ASCE 7–05, to verify that 

a manufactured home would be subject 

to comparable wind speeds if designed 

using ASCE 7–05. The second used the 

prescriptive wind pressures shown in 

the Table of Design Wind Pressures 

under § 3280.305 as a baseline to 

perform a series of iterative calculations 

to determine wind speeds that would 

produce similar wind pressures for 

Wind Zones II and III. 

The first analysis consisted of 

overlaying the contour lines for Wind 

Zones II and III on top of the wind 

speed map published in ASCE 7–05 to 

verify that manufactured homes would 

be designed for wind speeds that are 

comparable to the requirements of ASCE 

7–05. Using this method, the maximum 

wind speed identified in ASCE 7–05 for 

the continental United States of 

America is 150 mph. The only other 

location ASCE 7–05 indicates a wind 

speed above 150 mph is Guam, which 

requires a wind speed of 170 mph. 

Setting 150 mph as the upper bound 

(Wind Zone III) resulted in reviewing 

the locations between Wind Zones II 

and III compared to the those in ASCE 

7–05. It was found that there are 

multiple wind speeds between the 

ASCE 7–05 contours lines ranging from 

100 mph to a maximum of 140 mph. 

Therefore, since the HUD wind zones 

encompass multiple wind speeds and 

the HUD wind zones must be 

appropriate for all homes within these 

limits, Wind Zone II was set to a wind 

speed of 140 mph. Based off this 

analysis, HUD staff determined the 

revised wind speeds for Wind Zones II 

and III should be 140 mph and 150 

mph, respectively, based off a threesecond gust. 

HUD’s second analysis used the Durst 

Curve found in the commentary of 

ASCE 7 to convert the fastest mile to 

three-second gust and compare it to the 

International Building Code’s (IBC) 

equation of Vfm= (V3sec¥10.5)/1.05 

(IBC Section 1609.3). Both conversions 

resulted in wind speeds for Wind Zones 

II and III increasing from 100 mph and 

110 mph, to 120 mph and 130 mph, 

respectively. However, these 

conversions could not be used alone as 

they do not factor in changes ASCE 7 

made throughout the years to determine 

the wind pressures for building design 

that are now based on wind speed. The 

following paragraphs describe the main 

differences between the 1988 and 2005 

editions of the ASCE 7 code. 

• ASCE 7–88 and ASCE 7–05 use the 

following wind pressure (P) equation P 

= q*Gh*Cp-qh(GCpi) (eq. 1) 

• ASCE 7–88’s velocity pressure (q/ 

qh) is equal to: q/qh = 

0.00256*Kz*(I*V)2 (eq. 2) where V is 

fastest mile wind speed, I = 1.05 for 

areas 100 miles from coast, Kz = 0.8, Gh 

= 1.32 and GCpi = +/¥0.25 

• ASCE 7–05’s velocity pressure (q/ 

qh) is equal to: q/qh = 

0.00256*Kz*Kzt*Kd*I*V2 (eq. 3) where 

V is 3 second gust wind speed, I = 1.0, 

Kz = 0.85, G = 0.85, GCpi = +/¥ 0.18, 

Kzt = 1, Kd = 0.85 

Using the above equations and 

keeping V constant, equation 2 and 3 

above would simplify to q=0.00226*V2 

and q=0.00185*V2 for ASCE 7–88 and 

ASCE 7–05 respectively, which results 

is an 18 percent decrease in pressure 

from ASCE 7–88 to ASCE 7–05. Using 

these values for ‘‘q’’ and plugging them 

into the first equation, the design wind 

pressure (P) would be decreased even 

further. The overall wind design 

pressure would be decreased 47 percent 

if the wind speeds currently published 

in the MHCSS were left unrevised yet 

the design option was updated to ASCE 

7–05. 

HUD conducted an iterative analysis 

to match the prescriptive wind 

pressures shown in the Table of Design 

Wind Pressure to wind pressures using 

the ASCE 7–05 simplified method, also 

known as Method 1. The prescriptive 

Main Wind Force Resisting System 

(MWFRS) wind pressures are 39 pounds 

per square foot (psf) and 47 psf for Wind 

Zones II and III, respectively. Using 

ASCE 7 Method 1, winds speeds could 

be approximately 145 mph for Zone II 

and 160 mph for Zone III. However, 

based on the first analysis, it was 

determined that wind speeds of 140 

mph and 150 mph for Zones II and III 

would keep manufactured housing on 

par with design of other single-family 

structures. Finally, wind speeds of 140 

mph and 150 mph were used to 

compare the prescriptive component 

and cladding wind pressures in 

§ 3280.305 to ASCE 7–05, which 

resulted in approximately the same 

wind pressures depending on the 

tributary area used. Based on these 

thorough analyses, HUD is proposing to 

update the wind speeds for Wind Zones 

II and III to 140 mph and 150 mph, 

respectively, based upon a three-second 

gust. 

HUD also proposes to update the 

isotach reference under 

§ 3280.305(c)(2)(iii)(A) for Wind Zone III 

in the State of Alaska to the 110 mph 

isotach on the ANSI/ASCE 7–05 map. 

Further, HUD is updating the U.S. 

territories to address only those regions 

applicable for U.S. jurisdiction and 

proposes to eliminate reference to the 

Trust Territory of the Pacific Islands. 

Lastly, HUD proposes that the entire 

territory of Guam use a wind speed of 

170 mph as shown in figure 6–1 of 

ANSI/ASCE 7–05. HUD has made 

correlating changes to the standards in 

this proposed rule, where appropriate, 

to account for these changes. 

The reference standards for the 

structural design requirements for 

welded connections would also be 

updated in § 3280.305 to more current 

AISI standards. New language is also 

added in this paragraph (k) of this 

section to define and clarify ‘‘attic 

areas’’ and allow standard computer 

truss modeling methodologies to be 

utilized to design trusses. The proposal 

also establishes qualifying factors for the 

requirement of the 20 psf live loads for 

design of ceiling joists/bottom chords. 

To correct the interpretation that the 

entire attic space must be designed for 

storage and the live load of 20 psf 


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regardless of whether the space was 

accessible for or capable of 

accommodating storage space, the new 

qualifiers include criteria for attic access 

opening, joist slope, and minimum 

insulation depth that will allow for 

potential optimization of truss design 

and eliminate designs based on 

unnecessary or unrealistic loading 

conditions. These changes will allow 

the industry to value engineer structural 

roof members and help the industry to 

remain competitive in providing 

affordable housing. 

The proposed rule would amend 

§ 3280.307 to require the exterior wall 

envelopes to include a water resistive 

barrier (WRB) behind the exterior 

cladding of manufactured homes, as 

well as a means of draining water that 

enters the assembly. As most higher-end 

manufactured homes already include a 

WRB as a standard feature, this change 

will likely affect an estimated 30 

percent% of the current production. The 

use of a WRB is a commonly found 

product used in most single-family 

home construction and is required by 

many state and local codes. The WRB 

increases home resiliency and durability 

and offers a second layer of protection 

from bulk water damage over the 

exterior cladding. 

The MHCC also recommended an edit 

to the former § 3280.309, changing 

manufactured homes to dwelling units, 

but the Health Notice on formaldehyde 

emissions was removed from the 

MHCSS during the last rulemaking and 

HUD will not take action on that 

recommendation. 

Finally, proposed updates will add a 

new subsection § 3280.309 to provide 

standards for vinyl siding and 

polypropylene siding used in 

manufactured homes. Most siding 

manufacturers have instructions that 

reference the Vinyl Siding Institute 

Installation Instructions, which in turn 

reference ASTM standards. For 

consistency of both material and 

installation requirements, this proposed 

change will require that vinyl siding 

used in manufactured home 

construction comply with ASTM 

standards and must be certified or listed 

and labeled as conforming to those 

requirements. 

E. Testing 

The proposed rule would update and 

amend testing standards for windows, 

sliding glass doors, and skylights under 

§ 3280.403, egress windows and devices 

under § 3280.404, and swinging exterior 

passage doors under § 3280.405, for use 

in manufactured homes. The proposed 

rule would update standards for AAMA 

1701.2 from the 1995 version to the 

2012 version; ANSI Z97.1 from the 2004 

version to the 2009 version; and AAMA 

1702.2 from the 1995 version to the 

2012 version. The proposed rule also 

adds AAMA/WDMA/CSA 101/I.S.2/ 

A440–17 North American Fenestration 

Standard (NAFS) as an alternative 

compliance path in the sections of the 

MHCSS that govern windows, sliding 

glass doors, and skylights; egress 

windows; and swinging exterior passage 

doors. Windows used in manufactured 

homes are often exposed to some of 

their most severe service prior to the 

home being installed, as they may be 

subjected to extreme wind pressure and 

vibration while the home is being 

transported to the installation site. 

Testing standards ensure that windows 

can withstand such pressures while still 

performing to air and water 

specifications. The proposed rule also 

requires fenestration products to be 

certified by an ISO/IEC 17065 

accredited body, to ensure the 

competence, consistent operation and 

impartiality of product, process, and 

service certification bodies. This 

proposed rule change aligns the code 

with more current industry standards. 

F. Thermal Protection 

The proposed rule updates the 

reference standards for vapor retarder 

testing methods to a more current 

version of ASTM E96/E96M in 

§§ 3280.504. In § 3280.510, clarifications 

are made to make clear that heat loss 

and comfort cooling certificates must be 

visible to home occupants and be 

permanently affixed within each 

dwelling unit to accommodate multidwelling unit manufactured homes and 

that homes designated as suitable for 

central air conditioning must provide 

certified capacity information, including 

correct air supply entrances and air 

return locations. 

G. Plumbing Systems 

The proposed rule would add 

flexibility for the use of heat tape or 

piping heating cable used on plumbing 

systems in manufactured homes under 

§ 3280.603(b)(4)(ii) to increase the 

number of available options of heat 

tapes and pipe heating cables for use by 

consumers and manufacturers to 

prevent freezing of plumbing pipes. 

Heat tape or pipe heating cables used for 

manufactured homes are not different 

from those used in conventional sitebuilt homes. This change will allow 

manufacturers to use heat tape or pipe 

heating cable listed or certified for its 

intended purpose. The proposed rule 

would also update reference standards 

for materials listed under § 3280.604 to 

current industry standards. 

HUD also proposes to update the code 

governing the requirement for shower 

compartment installation under 

§ 3280.607(b)(3). The rule change will 

allow roll-in-type and transfer-type 

shower compartments (accessible 

bathing fixtures) with thresholds that 

comply with ICC ANSI A117.1, 

Standard for Accessible and Usable 

Buildings and Facilities, and will permit 

manufacturers to install bathing systems 

designed to serve people with 

disabilities. The current code imposes 

limitations on accessible shower 

compartment features by requiring 

minimum dam or threshold height. 

Currently, consumers have to remodel 

the existing standard shower 

compartment to integrate an accessible 

shower compartment or manufacturers 

need to obtain an Alternative 

Construction letter to install accessible 

shower compartments. The proposed 

rule change will codify accessible 

shower compartments into the MHCSS, 

eliminating the need for Alternative 

Construction letters for accessible 

shower compartments and allowing 

consumers to directly buy homes with 

accessible shower compartments. Under 

§ 3280.609, language is amended to 

clarify hot water supply systems are 

required for each dwelling unit 

equipped with a kitchen sink, bathtub, 

and/or shower. 

In § 3280.611, amendments are 

proposed to increase the maximum 

distance of a fixture trap to the vent, 

commonly referred to as the ‘‘trap arm.’’ 

It is imperative that a plumbing fixture 

be located close enough to the vertical 

vent pipe to prevent a siphon from 

where existing water is pulled out of the 

trap rendering it ineffective. This 

maximum distance is determined by the 

diameter and the number of fixtures 

draining through the drain pipe. The 

proposed rule change increases the 

maximum distance of the fixture trap to 

the vent thus aligning the distances in 

the MHCSS with those of the 

International Plumbing Code. This rule 

change affords plumbing engineers more 

flexibility in designing circuit vents for 

any specific floorplan. Bathroom 

fixtures (showers, sinks, toilets) must be 

located within the distances prescribed 

from the vent pipe; therefore, the 

increased maximum distances allow the 

designers to locate the vent pipe in the 

walls to accommodate a preferred 

fixture layout, whereas previously the 

layout may have required modification 

due to shorter permissible distances and 

floor plan constraints (e.g., location of 

available walls for the vent pipe). 

Consistency with other industry 

guidance (International Plumbing Code 


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and the American Society of Plumbing 

Engineers) reduces the likelihood of 

delays in the design approval process 

arising from designers using standard 

industry practice but which resulted in 

trap arms that exceeded the lengths 

previously allowed by the table in 

§ 3280.611(c). 

H. Heating, Cooling and Fuel Burning 

Systems 

The proposed rule would update the 

reference standards included in the 

definitions for Class 0 air ducts and 

connectors under § 3280.702 to UL 181– 

2013, more current UL standards. 

Reference standards would also be 

updated in § 3280.703 and two new 

standards (ANSI Z21.10.3 and ANSI 

Z21.75) are proposed to be added for 

gas-fired water heaters with input 

ratings above 75,000 British thermal 

units (Btu) per hour, circulating and 

instantaneous; and electrical heating 

appliances (UL 499–2014). 

In § 3280.705, standards for gas piping 

systems are proposed to update the 

reference standards to more current 

editions. Reference standards include 

criteria for establishing the suitability of 

concealed mechanical tube fittings for 

use with concealed gas piping, pipe 

joints in piping systems, and LP-gas 

supply connectors. Reference standards 

for oil piping systems and heat 

producing appliances would also be 

updated under § 3280.706 and 

§ 3280.707. In addition, § 3280.705(j) 

would be revised to require a gas supply 

connector for each dwelling unit of a 

multi-dwelling unit manufactured home 

designed for gas supply. 

In § 3280.709(a), this proposed rule 

would remove the language requiring 

manufacturers to leave appliance 

manufacturer instructions attached to 

appliances. Section 3280.711 currently 

states that ‘‘Operating instructions must 

be provided with each appliance. The 

operating and installation instructions 

for each appliance must be provided 

with the homeowner’s manual.’’ The 

current language in § 3280.709 causes 

confusion as to whether it is necessary 

to ship two installation instructions 

with each home, one with the appliance 

and one with the homeowners’ manual. 

Because all appliance manuals must be 

provided with the homeowner’s 

manual, this proposed rule change 

eliminates potential redundancy for 

duplicate and unnecessary appliance 

manuals. Furthermore, proposed 

revisions to § 3280.711 to allow for 

operating instructions requirements to 

be met through the provision of 

permanent Quick Response (QR) codes 

would further streamline 

documentation requirements for 

manufacturers. 

In § 3280.709(g), the proposed rule 

would ease requirements to allow 

consumers and manufacturers to install 

any fireplaces and wood stoves listed or 

certified for their intended purpose, 

instead of limiting options to only those 

specifically listed for manufactured 

homes. Installed fireplaces and wood 

stoves used for manufactured homes are 

not different than those used for homes 

regulated by others, so this proposed 

change would allow for greater 

flexibility and available options for both 

consumers and manufacturers. 

HUD also proposes to delete the 

prescriptive table of minimum 

coefficient of performance (COP) ratios 

for electric heat pumps with 

supplemental resistance heat under 

§ 3280.714(a)(1)(iii). These heat pumps 

are only required to meet the minimum 

federal heating season performance 

factor (HSPF) requirement. Current 

typical minimum COP values already 

exceed the prescriptive minimum COP 

values from 1989, so this rule change 

eliminates obsolete minimum standards 

and aligns the MHCSS with current 

federal minimum efficiency 

requirements. 

In § 3280.715, the proposed rule 

change permits supply air ducts located 

within 3 feet of the furnace discharge to 

be made of less fire-resistant material if 

those ducts are rated to withstand the 

maximum discharge air temperature of 

the equipment. All supply ducts must 

still be made of galvanized steel, tinplated steel, or aluminum listed as Class 

0 (air ducts and air connectors having 

surface burning characteristics of zero) 

or Class 1 (air ducts and air connectors 

having a flame-spread index of not over 

25 without evidence of continued 

progressive combustion and a smokedeveloped index of not over 50) in 

accordance with UL 181–2013. 

Previously, Class 1 ducts had to be 

located at least three (3) feet from the 

furnace bonnet or plenum, and furnace 

supply plenums had to be constructed 

of metal that extends a minimum of 

three (3) feet from the heat exchanger 

measured along the centerline of 

airflow. Manufacturers of Class 1 ducts 

commonly offer products specifically 

listed for use in manufactured homes, so 

the potential savings of this rule change 

would be realized immediately. 

I. Electrical Systems 

The proposed rule would amend the 

definition for feeder assembly under 

§ 3280.802(a)(20) to refer to ‘‘dwelling 

unit’’ instead of ‘‘manufactured home.’’ 

This change would accommodate the 

integration of multi-dwelling unit 

manufactured homes. Power supply 

requirements under § 3280.803(a) are 

clarified to not apply to multi-dwelling 

unit manufactured homes, and National 

Electric Code references under 

§§ 3280.803(k)(3)(ii), 3280.804, and 

3280.808(p) are updated to reference 

applicable articles of the National 

Electrical Code, NFPA 70–2014 for a 

more current standard. The code 

requirements for disconnecting means, 

consisting of a circuit breaker, or switch 

and fuses and accessories, would be 

streamlined under § 3280.804 and 

clarified to refer to dwelling units 

instead of manufactured homes. MHCSS 

language for branch circuit requirements 

under § 3280.805 and wiring methods 

and materials under § 3280.808 are also 

simplified for improved clarity. 

J. Revisions to Standards Incorporated 

by Reference (Reference Standards) 

The following table lists the standards 

incorporated by reference (IBRed) that 

would be revised or added by this 

proposed rule. Each reference standard 

is preceded with an indicator to identify 

the type of change being made. 

Reference standards designated ‘‘N’’ are 

new, meaning they have not been 

codified into the MHCSS. Reference 

standards designated ‘‘U’’ are being 

updated, that is HUD is incorporating an 

updated or more recent version of an 

already codified standard. Reference 

standards designated ‘‘*’’ are not new or 

being updated but have already been 

codified in the MHCSS and are being 

added to a different section from that 

codified. The sections of the MHCSS 

that would be amended by each 

modification are also shown on the right 

of the reference standard being added or 

updated: 

BILLING CODE 4210–67–P 


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BILLING CODE 4210–67–C The Department is interested in 

receiving comments from the public as 

to whether the use of any of the 

reference standards would result in 


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reduced safety or performance levels for 

manufactured home occupants. 

K. Changes to the Manufactured Home 

Procedural and Enforcement 

Regulations (24 CFR Part 3282) 

HUD is proposing a single revision to 

its Manufactured Home Procedural and 

Enforcement Regulations at 24 CFR part 

3282. Specifically, HUD is proposing to 

remove paragraph (l) from § 3282.8. This 

change would remove ‘‘multifamily 

homes’’ from the section’s applicability 

provisions. 

L. Changes to the Model Manufactured 

Home Installation Standards (24 CFR 

Part 3285) 

HUD is proposing changes to the 

Model Manufactured Home Installation 

Standards at 24 CFR part 3285 to revise 

definitions to allow certain specified 

roof ridge designs without a 

requirement for specific on-site 

inspections by the Production 

Inspection Primary Inspection Agencies 

(IPIAs), in those instances where it is to 

better support a type of roof installation 

that is now common throughout the 

industry and is a time-tested 

technology. Other proposed changes 

support broader criteria for fireplaces 

and woodstoves, as well as proposed 

changes to the Construction and Safety 

Standards for fire sprinkler certification 

and testing requirements, and 

modifications to water supply testing 

provisions to accommodate more types 

of piping materials. HUD proposes to 

add language under subpart F— 

Optional Features, to ensure that 

residential fire sprinkler systems are 

certified and tested on site in 

accordance with home manufacturer’s 

instructions and to ensure that a 

required listed minimum water supply 

is available for any systems installed. 

Testing requirements are to be 

consistent with § 3280.612(a) and 

certified by the installer. 

Proposed revisions to part 3285 also 

include revised language in 

§ 3285.603(d)(3) to support the changes 

under § 3280.603(b)(4)(ii) for heat tape 

or pipe heating cable use. 

M. Changes to the Manufactured Home 

Installation Program (24 CFR Part 3286) 

HUD is proposing changes to the 

Manufactured Home Installation 

Program at 24 CFR part 3286 to clarify 

and ensure that manufacturer 

instructions, alternative designs, and 

installation instructions are provided to 

purchasers and homeowners. Changes 

would also ensure that licensed 

installers must receive installation 

instructions in order to properly install 

the homes. Proposed changes also 

include clarifying the financial damage 

coverage prerequisites for installer 

applicants to qualify for installation 

licenses. An irrevocable letter of credit 

was added as an option in place of the 

surety bond to give installers another 

financial avenue to meet the licensing 

requirements, while still ensuring the 

same coverage to consumers. Changes 

will codify what has been discovered by 

the HUD-administered Manufactured 

Home Installation Program as necessary 

to provide adequate coverage to 

consumers in the case of damage to or 

loss of a manufactured home resulting 

from installation defects. 

III. Incorporation by Reference 

Before HUD issues a final rule, the 

consensus standards proposed for 

incorporation will be approved by the 

Director of the Federal Register for 

incorporation by reference in 

accordance with 5 U.S.C. 552(a) and 1 

CFR part 51. For purposes of this 

proposed rule, HUD has established an 

electronic reading room which provides 

links to access the consensus standards 

that would be added or updated by this 

rule. These standards will be available 

for review during the public comment 

period for this rule. The reading room 

can be accessed at: www.hud.gov/ 

program_offices/housing/rmra/mhs/ 

readingroom. 

Supplemental descriptions of the 

standards are provided in the following 

list. In addition, copies of these 

standards may be obtained from the 

organization that developed the 

standard. Finally, as described in 

§ 3280.4, these standards are available 

for inspection at HUD’s Office of 

Manufactured Housing Programs. Due to 

security measures at the HUD 

Headquarters building, however, an 

advance appointment to review 

standards must be scheduled by calling 

the Office of Manufactured Housing 

Programs 202–708–1112 (this is not a 

toll-free number). 

The following 88 consensus standards 

for Manufactured Housing are proposed 

for approval for incorporation by 

reference: 

1. ANSI/AHRI Standard 210/240– 

2008 with Addenda 1 and 2, Unitary 

Air-Conditioning and Air-Source Heat 

Pump Equipment. The proposed rule 

would update ANSI/ARI 210/240–89, 

Unitary Air-Conditioning and Air 

Source Heat Pump Equipment. This 

standard establishes definitions, 

classifications, test requirements, rating 

requirements, minimum data 

requirements for published ratings, 

operating requirements, marking and 

nameplate data, and conformance 

conditions for Unitary Air-Conditioners 

and Air-Source Unitary Heat Pumps. 

This standard is available through 

HUD’s online reading room. 

2. AAMA 1701.2–12, Voluntary 

Standard for Utilization in 

Manufactured Housing for Primary 

Window and Sliding Glass Doors. The 

proposed rule would update AAMA 

1701.2–95. This standard sets the 

requirements for primary windows and 

sliding glass doors used in 

manufactured housing. Window 

mounted as components in entry doors 

are beyond the scope of this standard. 

Since building methods and materials 

are expected to undergo continued 

design innovation, the purpose of this 

standard is to establish reasonable 

performance standards for all present 

and future methods and materials of 

construction. This standard is available 

through HUD’s online reading room. 

3. AAMA 1702.2–12, Voluntary 

Standard for Utilization in 

Manufactured Housing for Swinging 

Exterior Passage Doors. The proposed 

rule would update AAMA 1702.2–95, 

Voluntary Standard Swinging Exterior 

Passage Door for Utilization in 

Manufactured Housing. This standard 

sets the requirements for swinging 

exterior passage doors and combination 

doors used in manufactured housing. 

Windows used in swinging exterior 

passage doors are components of the 

door and are thus included in this 

standard. Since building methods and 

materials are expected to undergo 

continued design innovation, the 

purpose of this standard is to establish 

reasonable performance standards for all 

present and future methods and 

materials of construction. This standard 

is available through HUD’s online 

reading room. 

4. AAMA 1704–12, Voluntary 

Standard Egress Window Systems for 

Utilization in Manufactured Housing. 

The proposed rule would update AAMA 

Standard 1704–1985. This standard sets 

the requirements for the design, 

construction, and installation of egress 

window systems. This standard is 

available through HUD’s online reading 

room. 

5. AAMA/WDMA/CSA 101/I.S.2/ 

A440–17, North American Fenestration 

Standard/Specification for Windows, 

Doors, and Skylights. The proposed rule 

would update AAMA/WDMA/CSA 101/ 

I.S.2/A440–08. The MHCC originally 

recommended updating this standard to 

the 2011 version; however, more 

recently the MHCC submitted another 

recommendation to update this standard 

to the 2017 version. HUD proposes to 

update this standard to the 2017 version 

as most recently approved by the 

MHCC, as this version is already 


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referenced in HUD’s industry-wide 

alternative construction approval for 

doors. Incorporating the more recently 

recommended version will eliminate the 

need for the industry-wide alternative 

construction approvals for both doors 

and windows that address pandemicrelated supply chain shortages. This 

standard establishes material-neutral, 

minimum, and optional performance 

requirements for windows, doors, 

secondary storm products, tubular 

daylighting devices, roof windows, and 

unit skylights. The specification 

concerns itself with the determination 

of performance grade, design pressure, 

and related performance ratings. This 

standard is available through HUD’s 

online reading room. 

6. ANSI/AHA A135.4–2012, Basic 

Hardboard. The proposed rule would 

update ANSI/AHA A135.4–1995. This 

standard covers requirements and test 

methods for water resistance, thickness 

swelling, modulus of rupture, tensile 

strength, surface finish, dimensions, 

squareness, edge straightness, and 

moisture content of five classes of basic 

hardboard. This standard requires test 

methods determined by the ASTM, 

International where appropriate and 

provides methods of identifying 

hardboard that is compliant. This 

standard is available through HUD’s 

online reading room. 

7. ANSI/AHA A135.5–2012, 

Prefinished Hardboard Paneling. The 

proposed rule would update ANSI/AHA 

A135.5–1995. This standard covers 

requirements and methods of testing for 

the dimensions, squareness, edge 

straightness, and moisture content of 

prefinished hardboard paneling and for 

the finish of the paneling. Methods of 

identifying products which conform to 

ANSI/AHA A135.5 are included. This 

standard is available through HUD’s 

online reading room. 

8. ANSI/AHA A135.6–2012, 

Hardboard Siding. The proposed rule 

would update ANSI/AHA A135.6–1998. 

This standard sets requirements and 

methods of testing for the dimensions, 

straightness, squareness, physical 

properties, and surface characteristics of 

engineered wood siding at the time of 

manufacture. This standard is available 

through HUD’s online reading room. 

9. AISC 360–10, Specifications for 

Structural Steel Buildings. The 

proposed rule would update AISC– 

S335, 1989, Specification for Structural 

Steel Buildings—Allowable Stress 

Design and Plastic Design (except for 

the following parts of this standard 

which are specifically excluded from 

use: 1.3.3, 1.3.4, 1.3.5, 1.3.6, 1.4.6, 

1.5.1.5, 1.5.5, 1.6, 1.7, 1.8, 1.9, 1.10.4 

through 1.10.7, 1.10.9, 1.11, 1.13, 1.14.5, 

1.17.7 through 1.17.9, 1.19.1, 1.19.3, 

1.20, 1.21, 1.23.7, 1.24, 1.25.1 through 

1.25.5, 1.26.4, 2.3, 2.4, 2.8 through 2.10), 

June 1, 1989. This specification 

provides the generally applicable 

requirements for the design and 

construction of structural steel buildings 

and other structures. This standard is 

available through HUD’s online reading 

room. 

10. AISI S100–12, North American 

Specification for the Design of ColdFormed Steel Structural Members. The 

proposed rule would update AISI, 

Specification for the Design of ColdFormed Steel Structural Members, 1996. 

This specification provides the general 

applicable requirements for the design 

of cold-formed steel structural members 

used in North America. This standard is 

available through HUD’s online reading 

room. 

11. ANSI A208.1–2009, Particleboard. 

The proposed rule would update ANSI 

A208.1–1999. This standard sets forth 

requirements and test methods for 

dimensional tolerances, physical and 

mechanical properties, and 

formaldehyde emissions for 

particleboard. Methods of identifying 

products conforming to the standard are 

specified. This standard is available 

through HUD’s online reading room. 

12. ANSI LC 1–2014, Fuel Gas Piping 

Systems Using Corrugated Stainless 

Steel Tubing. The proposed rule would 

update ANSI/IAS LC 1–1997. This 

standard provides the general applicable 

requirements for the installation of 

natural and propane gas piping systems 

using corrugated stainless steel tubing 

in residential, commercial, or industrial 

buildings. This includes requirements 

for the installation of corrugated 

stainless steel piping systems in which 

portions of the piping are exposed to the 

outdoors as required to make 

connections to outdoor gas meters or to 

outdoor gas appliances, which are 

attached to, mounted on, or located near 

the building structure. This standard is 

available through HUD’s online reading 

room. 

13. ANSI Z21.1–2016, Household 

Cooking Gas Appliances. The proposed 

rule would update ANSI Z21.1–2000. 

This standard specifies guidelines for 

the newly produced household cooking 

gas appliances constructed entirely of 

new, unused parts and materials. These 

appliances may be floor-supported or 

built-in. This standard is available 

through HUD’s online reading room. 

14. ANSI Z21.5.1–2015, Gas Clothes 

Dryers Volume 1, Type 1 Clothes Dryers. 

The proposed rule would update ANSI 

Z21.51.1–1999, Gas Clothes Dryers 

Volume 1, Type 1 Clothes Dryers, with 

Addendum z21.5.1a–1999. This 

standard specifies guidelines for newly 

produced Type 1 clothes dryers 

constructed entirely of new, unused 

parts and materials for use with natural 

gas, manufactured gas, mixed gas, 

propane gas, LP gas-air mixtures, and 

for mobile home installation. This 

standard is available through HUD’s 

online reading room. 

15. ANSI Z21.10.1–2014, Gas Water 

Heaters Volume 1, Storage Water 

Heaters with Input Ratings of 75,000 

BTU per hour or Less. The proposed 

rule would update ANSI Z21.10.1–1998, 

Gas Water Heaters—Volume 1, Storage 

Water Heaters with Input Ratings of 

75,000 BTU per hour or Less, with 

Addendum Z21.10.1a–2000. This 

standard specifies guidelines for newly 

produced, automatic storage water 

heaters having input ratings of 75,000 

Btu/hr (21,980 W) or less, hereinafter 

referred to as water heaters or 

appliances, constructed entirely of new, 

unused parts and materials. This 

standard is available through HUD’s 

online reading room. 

16. ANSI Z21.10.3–2014 Gas-fired 

Water Heaters Volume 3, Storage Water 

Heaters with Input Ratings Above 

75,000 BTU per Hour, Circulating and 

Instantaneous. This proposed rule 

would add this standard for 

incorporation by reference. This 

standard specifies guidelines for newly 

produced, large automatic storage water 

heaters having input ratings about 

75,000 Btu/hr (21,980 W), instantaneous 

water heaters, and circulating water 

heaters including booster water heaters, 

constructed entirely of new, unused 

parts and materials. This standard is 

available through HUD’s online reading 

room. 

17. ANSI Z21.15–2009, Manually 

Operated Gas Valves for Appliances, 

Appliance Connector Valves and Hose 

End Valves. The proposed rule would 

update ANSI Z21.15–1997. This 

standard applies to manually operated 

gas valves not exceeding 4 inch (102 

mm) pipe size, and pilot shut-off 

devices. This standard is available 

through HUD’s online reading room. 

18. ANSI Z21.19–2014, Refrigerators 

Using Gas Fuel. The proposed rule 

would update ANSI Z21.19–1990, with 

Addendum ANSI Z21 19a–1992 and 

ANSI Z21 19b–1995. This standard 

specifies guidelines for gas-fired 

refrigerators having refrigerated spaces 

for storage of foods, storage of foods and 

making ice, storage of frozen foods and 

making ice, or storage of foods and the 

storage of frozen foods and making ice. 

The standard applies to newly produced 

refrigerators constructed entirely of 

new, unused parts and materials. This 


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standard is available through HUD’s 

online reading room. 

19. ANSI Z21.20–2014, Automatic 

Gas Ignitions Systems and Components. 

This proposed rule would update ANSI 

Z21.20 with Addendum Z21.20a–2000. 

This standard specifies guidelines for 

newly produced automatic gas ignition 

systems and components constructed 

entirely of new, unused parts and 

materials. This standard is available 

through HUD’s online reading room. 

20. ANSI Z21.21–2012, Automatic 

Valves for Gas Appliances. This 

proposed rule would update ANZI 

Z21.21–2000. This standard specifies 

guidelines for newly produced 

automatic valves constructed entirely of 

new, unused parts and materials. These 

valves may be individual automatic 

valves or valves utilized as parts of 

automatic gas ignition systems. The 

standard also applies to commercial/ 

industrial safety shutoff valves, also 

referred to as C/I valves. This standard 

is available through HUD’s online 

reading room. 

21. ANSI Z21.23–2000 (R2005), Gas 

Appliance Thermostats with ANSI 

Z21.23a–2003 (Addenda1) and ANSI 

21.23b–2005 (Addenda 2). This 

proposed rule would update ANSI 

Z21.23–1993. This standard specifies 

guidelines for newly produced gas 

appliance thermostats of the integral gas 

valve type having a maximum operating 

gas pressure of 1⁄2 psi (3.5 kPa) or 

electric type. This standard is available 

through HUD’s online reading room. 

22. ANSI Z21.24–2006 (R2011), 

Connectors for Gas Appliances. This 

proposed rule would update ANSI 

Z21.24–1997/CGA 6.10–M97, 

Connectors for Gas Appliances, and 

remove the reference to the Compressed 

Gas Association. This standard specifies 

guidelines for newly produced gas 

appliance connectors constructed 

entirely of new unused parts and 

materials, having nominal internal 

diameters of 1⁄4, 3⁄8, 1⁄2, 5⁄8, 3⁄4 and 1 

inch, and having fittings at both ends 

provided with taper pipe threads for 

connection to a gas appliance and to 

house piping. Guidelines cover 

assembled appliance connectors not 

exceeding a nominal length of six (6) 

feet (1.83 meters). Connectors listed 

under this standard are intended for use 

with gas appliances that are not 

frequently moved after installation. This 

standard is available through HUD’s 

online reading room. 

23. ANSI Z21.40.1–1996, Gas Fired, 

Heat Activated Air Conditioning and 

Heat Pump Appliances. This proposed 

rule would correct the title of this 

standard from ANSI Z21.40.1–1996/ 

CGA 2.91–M96, Gas-Fired, Heat 

Activated Air Conditioning and Heat 

Pump Appliances, to remove the 

reference to the Compressed Gas 

Association. This standard has already 

been approved for incorporation by 

reference for §§ 3280.703 and 

3280.714(a) by the Director of the Office 

of the Federal Register and is 

unchanged. This standard is available 

through HUD’s online reading room. 

24. ANSI Z21.47–2012, Gas Fired 

Central Furnaces (Except Direct Vent 

Systems). The proposed rule would 

update ANSI Z21.47–1990 with 

Addendum Z21.4a–1990 and Z21.47b– 

1992, Gas-Fired Central Furnaces 

(Except Direct Vent System Central 

Furnaces). The updated standard 

contains new and revised requirements 

for documentation and testing and sets 

forth basic standards for the safe 

operation, substantial and durable 

construction, and acceptable 

performance of gas-fired central 

furnaces. This standard has been 

previously approved for incorporation 

by reference at 10 CFR 431.75. This 

standard is available through HUD’s 

online reading room. 

25. ANSI Z21.75–2007, Connectors for 

Outdoor Gas Appliances and 

Manufactured Homes. This proposed 

rule would add this standard for 

incorporation by reference. This 

standard specifies guidelines for newly 

produced assembled connectors 

constructed entirely of new, unused 

parts and materials. This standard is 

available through HUD’s online reading 

room. 

26. ANSI Z97.1–2009, Standard for 

Safety Glazing Materials used in 

Buildings—Safety Performance 

Specifications and Methods of Test. The 

proposed rule would update ANSI 

Z97.1–2004, Standard for Safety Glazing 

Materials used in Buildings—Safety 

Performance Specifications and 

Methods of Test, copyright 2004. This 

standard establishes the specifications 

and methods of test for the safety 

properties of safety glazing materials 

(glazing materials designed to promote 

safety and to reduce or minimize the 

likelihood of cutting and piercing 

injuries when the glazing materials are 

broken by human contact) as used for all 

building and architectural purposes. 

The updated standard adds 

modifications and new material that add 

clarity of purpose, intent and 

procedures. Specifically, sections have 

been rewritten and new sections added 

to provide additional assurance that the 

intended safe-break characteristics have 

been achieved before a test specimen 

may be declared compliant. This 

reference standard impacts the HUD 

Code to define safety glazing materials 

used in glass and glazed openings such 

as windows and sliding glass doors, and 

hazardous locations requiring safety 

glazing. The scope of this standard is 

available through HUD’s online reading 

room. 

27. APA D510C–2012, Panel Design 

Specification. The proposed rule would 

replace APA D410A–2004, Panel Design 

Specification. This standard specifies 

guidelines for newly produced 

assembled connectors constructed 

entirely of new, unused parts and 

materials. This standard is available 

through HUD’s online reading room. 

28. APA E30V–2011, Engineered 

Wood Construction Guide. The 

proposed rule would update APA E30R, 

Engineered Wood Construction Guide, 

revised January 2001. This standard 

specifies guidelines for the use of 

engineered wood for residential and 

commercial construction. It contains 

information on APA performance rated 

panels, glulam, I-joists, structural 

composite lumber, specification 

practices, floor, wall and roof systems, 

diaphragms and shear walls, fire-rated 

systems, and methods of finishing. This 

standard is available through HUD’s 

online reading room. 

29. APA H815G–2013, Design & 

Fabrication of All-Plywood Beams. The 

proposed rule would update APA 

H815E–1995 (PDS Supplement #5), 

Design and Fabrication of All-Plywood 

Beams. This standard presents 

recommended methods for the design 

and fabrication of staple-glued allplywood beams. Allowable stresses and 

other design criteria are provided, as 

well as guidelines for beam fabrication. 

This standard is available through 

HUD’s online reading room. 

30. APA PS 1–09, Structural Plywood 

(with Typical APA Trademarks). This 

proposed rule would add this standard 

for incorporation by reference. This 

standard specifies guidelines for 

producing, marketing, and specifying 

plywood for construction and industrial 

uses. This standard is available through 

HUD’s online reading room. 

31. APA S811P–2013, Design & 

Fabrication of Plywood Curved Panels. 

The proposed rule would update APA 

S811M–1990 (PDS Supplement 1), 

Design and Fabrication of Plywood 

Curved Panels. This specification 

presents the recommended method for 

the design and fabrication of curved 

plywood roof panels spanning between 

load-bearing supports so that the 

stresses developed act circumferentially 

around the curve. This standard is 

available through HUD’s online reading 

room. 

32. APA S812S–2013, Design & 

Fabrication of Glued Plywood Lumber 


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Beams. The proposed rule would 

update APA S812R–1992, Design and 

Fabrication of Glued Plywood-Lumber 

Beams, revised November 1998, 

Supplement #2, July 1992. This 

specification presents the recommended 

method for the design and fabrication of 

glued plywood and lumber beams. This 

standard is available through HUD’s 

online reading room. 

33. APA U813M–2012, Design & 

Fabrication of Plywood-Stressed Skin 

Panels. The proposed rule would 

update APA U813L–1992, Design and 

Fabrication of Plywood Stressed-Skin 

Panels, revised April 1996, Supplement 

#3, August 1992. This specification 

presents the recommended method for 

the design and fabrication of glued 

plywood stressed-skin panels. This 

standard is available through HUD’s 

online reading room. 

34. APA U814J–2012, Design & 

Fabrication of Plywood Sandwich 

Panels. The proposed rule would 

update APA U 814H, Design and 

Fabrication of Plywood, Sandwiched 

Panels, revised September 1993, 

Supplement #4, March 1990. This 

specification presents the recommended 

method for the design and fabrication of 

flat plywood sandwich panels. This 

standard is available through HUD’s 

online reading room. 

35. APA Y510–98, Plywood Design. 

This proposed rule would add this 

standard for incorporation by reference. 

This specification presents section 

properties, recommended design 

stresses, and design methods for 

plywood when used in building 

construction and related structures. This 

standard is available through HUD’s 

online reading room. 

36. ASCE/SEI 7–05, Minimum Design 

Loads for Buildings and Other 

Structures. The proposed rule would 

update ANSI/ASCE 7–88, Minimum 

Design Loads for Buildings and Other 

Structures. This standard describes the 

means for determining design loads 

including dead, live, soil, flood, 

tsunami, snow, rain, atmospheric ice, 

seismic, and wind loads and their 

combinations for general structural 

design. This standard is available 

through HUD’s online reading room. 

37. ANSI/ASHRAE Standard 62.2– 

2013, Ventilation and Acceptable 

Indoor Air Quality in Low-Rise 

Residential Buildings. The proposed 

rule would update ANSI/ASHRAE 62.2– 

2010, Ventilation and Acceptable Indoor 

Air Quality in Low-Rise Residential 

Buildings, copyright 2010. This 

standard describes the minimum 

requirements to achieve acceptable 

indoor air quality via dwelling-unit 

ventilation, local demand-controlled 

exhaust, and source control. This 

standard is available through HUD’s 

online reading room. 

38. ANSI/ASME B1.20.1–2013, Pipe 

Threads, General Purpose (Inch). The 

proposed rule would update ASME 

B1.20.1–1983, Pipe Threads, General 

Purpose (Inch). This standard 

establishes specifications for wrought 

copper and wrought copper alloy, 

solder-joint, seamless fittings, designed 

for use with seamless copper tube 

conforming to ASTM B88 (water and 

general plumbing systems), B280 (air 

conditioning and refrigeration service), 

and B819 (medical gas systems), as well 

as fittings intended to be assembled 

with soldering materials conforming to 

ASTM B32, brazing materials 

conforming to AWS A5.8, or with 

tapered pipe thread conforming to 

ASME B1.20.1. This standard is aligned 

with ASME B16.18, which covers cast 

copper alloy pressure fittings, and 

provides requirements for fitting ends 

suitable for soldering. This standard 

covers pressure-temperature ratings, 

abbreviations for end connections, size 

and method of designating openings of 

fittings, marking, material, dimensions 

and tolerances, and tests. This standard 

is available through HUD’s online 

reading room. 

39. ANSI/ASME B36.10–2004, 

Welding and Seamless Wrought Steel 

Pipe. The proposed rule would update 

ASME B36.10–1979, Welding and 

Seamless Wrought Steel Pipe. This 

standard covers the standardization of 

dimensions of welded and seamless 

wrought steel pipe for high or low 

temperatures and pressures. The word 

pipe is used, as distinguished from tube, 

to apply to tubular products of 

dimensions commonly used for pipeline 

and piping systems. Pipe NPS 12 (DN 

300) and smaller have outside diameters 

numerically larger than their 

corresponding sizes. In contrast, the 

outside diameters of tubes are 

numerically identical to the size number 

for all sizes. This standard is available 

through HUD’s online reading room. 

40. ASTM A53/A53M–12, Standard 

Specification for Pipe, Steel, Black and 

Hot-Dipped. The proposed rule would 

update ASTM A53–93, Standard 

Specification for Pipe, Steel, Black and 

Hot-Dipped, Zinc Coated, Welded and 

Seamless. This specification covers 

seamless and welded black and hotdipped galvanized steel pipe in NPS 1⁄8

to NPS 26. The steel categorized in this 

standard must be open-hearth, basicoxygen, or electric-furnace processed, 

and must have specified chemical 

requirements. Testing requirements for 

seamless or welded tubing are provided 

in this standard. This standard is 

available through HUD’s online reading 

room. 

41. ASTM B42–10, Standard 

Specification for Seamless Copper Pipe, 

Standard Sizes. The proposed rule 

would update ASTM B42–93, Standard 

Specification for Seamless Copper Pipe, 

Standard Sizes. This specification 

establishes the requirements for 

seamless copper pipe in all nominal 

standard pipe sizes, both regular and 

extra-strong, suitable for use in 

plumbing, boiler feed lines, and for 

similar purposes. This standard is 

available through HUD’s online reading 

room. 

42. ASTM B88–14, Standard 

Specification for Seamless Copper 

Water Tube. The proposed rule would 

update ASTM B88–93, Standard 

Specification for Seamless Copper 

Water Tube. The specification covers 

seamless copper water tube suitable for 

general plumbing, applications for the 

conveyance of fluids, and use with 

solder, flared, or compression-type 

fittings. This standard is available 

through HUD’s online reading room. 

43. ASTM B251–10, Standard 

Specification for General Requirements 

for Wrought Seamless Copper and 

Copper-Alloy Tube. The proposed rule 

would update ASTM B251–93, Standard 

Specification for General Requirements 

for Wrought Seamless Copper and 

Copper-Alloy Tube. This specification 

sets forth the general requirements for 

wrought seamless copper and copperalloy tube. This standard is available 

through HUD’s online reading room. 

44. ASTM B280–13, Standard 

Specification for Seamless Copper Tube 

for Air Conditioning and Refrigeration 

Field Service. The proposed rule would 

update ASTM B280–95a, Standard 

Specification for Seamless Copper Tube 

for Air Conditioning and Refrigeration 

Field Service. This specification sets 

forth the requirements for seamless 

copper tube intended for use in the 

connection, repairs, or alterations of air 

conditioning or refrigeration units in the 

field. This standard is available through 

HUD’s online reading room. 

45. ASTM C1396/C1396M–14, 

Standard Specification for Gypsum 

Board. The proposed rule would update 

ASTM C 36/C 36M–99, Standard 

Specification for Gypsum Wallboard, 

1999. This specification covers gypsum 

boards which include the following: 

gypsum wallboard for use on walls, 

ceilings, or partitions and that affords a 

surface suitable to receive decoration; 

predecorated gypsum board for use as 

the finished surfacing for walls, ceilings, 

or partitions; gypsum backing board, 

coreboard, and shaftliner board for use 

as a base in multilayer systems or as a 


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gypsum stud or core in semisolid or 

solid gypsum board partitions, or in 

shaft wall assemblies; water-resistant 

gypsum backing board to be used as a 

base for the application of ceramic or 

plastic tile on walls or ceilings; exterior 

gypsum soffit board for exterior soffits 

and carport ceilings that are completely 

protected from contact with liquid 

water; gypsum sheathing board for use 

as sheathing on buildings; gypsum base 

for veneer plaster; gypsum lath for use 

as a base for gypsum plaster application; 

and gypsum ceiling board for interior 

ceilings and walls. This standard is 

available through HUD’s online reading 

room. 

46. ASTM D3679–09a, Standard 

Specification for Rigid Poly (Vinyl 

Chloride) (PVC) Siding. This proposed 

rule would add this standard for 

incorporation by reference. This 

specification establishes requirements 

and test methods for the materials, 

dimensions, warp, shrinkage, impact 

strength, expansion, appearance, and 

windload resistance of extruded singlewall siding manufactured from rigid 

(unplasticized) PVC compound. This 

standard is available through HUD’s 

online reading room. 

47. ASTM D4442–07, Standard Test 

Methods for Direct Moisture Content 

Measurement of Wood & Wood Base 

Materials. The proposed rule would 

update ASTM D4442–92 (Reapproved 

1997), Standard Test Methods for Direct 

Moisture Content Measurement of Wood 

and Wood-Base Materials. These test 

methods cover the determination of the 

moisture content of wood, veneer, and 

other wood-based materials, including 

those that contain adhesives and 

chemical additives. This standard is 

available through HUD’s online reading 

room. 

48. ASTM D4444–13, Standard Test 

Methods for Use and Calibration of 

Hand-Held Moisture Meters. The 

proposed rule would update ASTM 

D4444–92, Standard Test Methods for 

Use and Calibration of Hand-Held 

Moisture Meters. These test methods 

cover the measurement of moisture 

content of solid wood products, 

including those containing additives 

(that is, chemicals or adhesives) for 

laboratory standardization and 

calibration of hand-held moisture 

meters. This standard is available 

through HUD’s online reading room. 

49. ASTM D4756–06, Standard 

Practice for Installation of Rigid Poly 

(Vinyl Chloride) (PVC) Siding and Soffit. 

This proposed rule would add this 

standard for incorporation by reference. 

This standard covers the minimum 

requirements for and the methods of 

installation of rigid vinyl siding, soffits, 

and accessories on the exterior wall and 

soffit areas of buildings. This standard 

also covers aspects of installation 

relating to effectiveness and durability 

in service. This standard is available 

through HUD’s online reading room. 

50. ASTM D7254–07, Standard 

Specification for Polypropylene (PP) 

Siding. The proposed rule would add 

this standard for incorporation by 

reference. This specification establishes 

requirements and test methods for 

materials, impact strength, appearance, 

surface flame spread, and windload 

resistance of siding products 

manufactured from polypropylene 

material. This standard is available 

through HUD’s online reading room. 

51. ASTM E90–09, Standard Test 

Method for Laboratory Measurement of 

Airborne Sound Transmission Loss of 

Building Partitions and Elements. This 

proposed rule would add this standard 

for incorporation by reference. This test 

method covers the laboratory 

measurement of airborne sound 

transmission loss of building partitions 

such as walls of all kinds, operable 

partitions, floor-ceiling assemblies, 

doors, windows, roofs, panels, and other 

space-dividing elements. This standard 

is available through HUD’s online 

reading room. 

52. ASTM E96/E96M–13, Standard 

Test Methods for Water Vapor 

Transmission of Materials. The 

proposed rule would update ASTM 

E96–95, Standard Test Methods for 

Water Vapor Transmission of Materials. 

These test methods cover the 

determination of water vapor 

transmission rate of materials, such as, 

but not limited to, paper, plastic films, 

other sheet materials, coatings, foams, 

fiberboards, gypsum and plaster 

products, wood products, and plastics. 

This standard is available through 

HUD’s online reading room. 

53. ASTM E119–14, Standard Test 

Method for Fire Tests of Building 

Construction and Materials. The 

proposed rule would update ASTM 

E119–05, Standard Test Method for Fire 

Tests of Building Construction and 

Materials. This standard contemplates 

fire test response criteria which is 

essential for fire safety. Testing per this 

standard establishes the duration for 

which a specific material or installation 

can contain a fire. This information 

helps to show insurance carriers, 

contractors, and other parties what 

might reasonably be expected in the 

event of a fire emergency. This standard 

is available through HUD’s online 

reading room. 

54. ASTM E492–09, Standard Test 

Method for Laboratory Measurement of 

Impact Sound Transmission Through 

Floor-Ceiling Assemblies Using the 

Tapping Machine. This proposed rule 

would add this standard for 

incorporation by reference. This test 

method covers the laboratory 

measurement of impact sound 

transmission of floor-ceiling assemblies 

using a standardized tapping machine. 

This standard is available through 

HUD’s online reading room. 

55. ASTM E814–13, Standard Test 

Method for Fire Tests of Penetration 

Firestop Systems. This proposed rule 

would add this standard for 

incorporation by reference. This 

standard is used to measure and 

describe the response of materials, 

products, or assemblies to heat and 

flame under controlled conditions. This 

standard contemplates fire testing that 

evaluates a firestop under fire 

conditions to determine if it will gain 

firestop status. It addresses areas of 

building construction where firestop 

systems are necessary to contain fire 

from spreading from one area to another 

around penetrating items. This standard 

is available through HUD’s online 

reading room. 

56. AWC (formerly under AFPA), 2012 

Design Values for Joists & Rafters. The 

proposed rule updates AFPA, Design 

Values for Joists and Rafters 1992. This 

standard provides design values such as 

bending, compression, and modulus of 

elasticity for joists and rafters, and 

tabulates allowable bending (Fb) and 

modulus of elasticity (E) design values 

for visually graded and mechanically 

graded dimension lumber. This 

standard is available through HUD’s 

online reading room. 

57. AWC NDS–2015 (formerly under 

AFPA), National Design Specifications 

for Wood Construction, with 

Supplement, Design for Wood 

Construction. The proposed rule 

updates ANSI/AFPA NDS–2001, 

National Design Specifications for Wood 

Construction, 2001 Edition, with 

Supplement, Design Values for Wood 

Construction, November 30, 2001. This 

specification defines the methods to be 

followed in structural design with the 

following wood products: visually 

graded lumber, mechanically graded 

lumber, structural glued laminated 

timber, timber piles, timber poles, 

prefabricated wood I-joists, structural 

composite lumber, wood structural 

panels, and cross-laminated timber. It 

also defines the practice to be followed 

in the design and fabrication of single 

and multiple fastener connections using 

the fasteners described within it. This 

standard is available through HUD’s 

online reading room. 

58. AWC PS–20–70–2012 (formerly 

under AFPA), Span Tables for Joists & 


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Rafters. The proposed rule updates 

AFPA PS–20–70, Span Tables for Joists 

and Rafters, 1993. This standard 

provides a simplified system for 

determining allowable joist and rafter 

spans for typical loads encountered in 

one- and two-family dwellings and is 

referenced in the 2012 International 

Building Code. This standard is 

available through HUD’s online reading 

room. 

59. ANSI/HPVA HP–1–2009, 

American National Standard for 

Hardwood and Decorative Plywood. The 

proposed rule would update ANSI/ 

HPVA HP–1–1994, American National 

Standard for Hardwood and Decorative 

Plywood. This standard sets forth the 

specific requirements for all face, back, 

and inner ply grades as well as 

formaldehyde emissions, moisture 

content, tolerances, sanding, and grade 

marking for hardwood and decorative 

plywood. This standard is available 

through HUD’s online reading room. 

60. IAPMO TSC 9–2003, Standard for 

Gas Supply Connectors for 

Manufactured Homes. The proposed 

rule would update IAPMO TSC 9–97, 

Standard for Gas Supply Connectors for 

Manufactured Homes. This standard 

applies to connectors for outdoor use 

consisting of flexible tubing depending 

on all-metal construction for gas 

tightness and having a fitting at each 

end provided with tapered pipe threads 

for connecting manufactured home gas 

piping to a manufactured home lot gas 

outlet or a crossover in multiple unit 

manufactured homes. This standard is 

available through HUD’s online reading 

room. 

61. ISO/IEC 17065–2012, Conformity 

Assessment—Requirements for Bodies 

Certifying Products, Processes and 

Services. This proposed rule would add 

this standard for incorporation by 

reference. This International Standard 

contains requirements for the 

competence, consistent operation and 

impartiality of product, process and 

service certification bodies. This 

standard is available through HUD’s 

online reading room. 

62. ESR 1539–2014, ICC–ES 

Evaluation Report, Power Driven Staples 

and Nails. The proposed rule would 

update NER–272, National Evaluation 

Report, Power Driven Staples, Nails, 

and Allied Fasteners for Use in All 

Types of Building Construction, 

Reissued September 1, 1997. This 

document contains design values and 

allowable load tables for individual 

nails and staples as well as for nailed or 

stapled shear walls that may not be 

listed in the Uniform Building Code. 

This standard is available through 

HUD’s online reading room. 

63. NFPA 13D–2010, Standard for the 

Installation of Sprinkler Systems in One 

and Two Family Dwellings and 

Manufactured Homes. This proposed 

rule would add this standard for 

incorporation by reference. This 

standard covers the design, installation, 

and maintenance of automatic sprinkler 

systems for protection against the fire 

hazards in one- and two-family 

dwellings and manufactured homes. 

This standard is available through 

HUD’s online reading room. 

64. NFPA 31–2011, Installation of OilBurning Equipment. The proposed rule 

would update NFPA 31, Standard for 

the Installation of Oil-Burning 

Equipment, 2001. This standard sets 

forth the requirements for the safe, 

efficient design and installation of 

heating appliances that use a liquid fuel, 

typically No. 2 heating oil, but also 

lighter fuels, such as kerosene and 

diesel fuel, and heavier fuels, such as 

No. 4 fuel oil. This standard is available 

through HUD’s online reading room. 

65. NFPA 54/ANSI Z223.1–2015, 

National Fuel Gas Code. The proposed 

rule would update NFPA 54–2002, 

National Fuel Gas Code. This standard 

provides minimum safety requirements 

for the design and installation of fuel 

gas piping systems in homes and other 

buildings. This standard is available 

through HUD’s online reading room. 

66. NFPA 58–2014, Standard for the 

Storage and Handling of Liquefied 

Petroleum Gases. The proposed rule 

would update NFPA 58, Liquefied 

Petroleum Gas Code, 2001 Edition. This 

standard sets forth the requirements for 

safe liquified petroleum gas storage, 

handling, transportation, and use. This 

standard mitigates risks and ensures 

safe installations, to prevent failures, 

leaks, and tampering that could lead to 

fires and explosions. This standard is 

available through HUD’s online reading 

room. 

67. NFPA 70–2014, National Electric 

Code. This proposed rule would update 

NFPA No. 70–2005. This standard sets 

forth the requirements for safe electrical 

design, installation, and inspection to 

protect people and property from 

electrical hazards. The purpose of this 

Code is the practical safeguarding of 

persons and property from hazards 

arising from the use of electricity. This 

standard is available through HUD’s 

online reading room. 

68. NFPA 90B–2015, Warm Air 

Heating and Air Conditioning Systems. 

The proposed rule would update NFPA 

90B, Warm Air Heating and Air 

Conditioning Systems, 1996 Edition. 

This standard sets forth the 

requirements that cover the 

construction, installation, operation, 

and maintenance of systems for warm 

air heating and air conditioning, 

including filters, ducts, and related 

equipment to protect life and property 

from fire, smoke, and gases resulting 

from fire or from conditions having 

manifestations similar to fire. This 

standard is available through HUD’s 

online reading room. 

69. SAE J533b–2007, Flares for 

Tubing. The proposed rule would 

update SAE–J533b–1992, Flares for 

Tubing. This standard covers 

specifications and performance 

requirements for 37° and 45° single and 

double flares for tube ends intended for 

use with SAE J512, SAE J513, SAE J514, 

and ISO 8434–2 connectors. This 

standard is available through HUD’s 

online reading room. 

70. TPI 1–2007, National Design 

Standard for Metal Plate Connected 

Wood Truss Construction (formerly 

TPI–85). The proposed rule would 

update TPI–85, Design Specifications 

for Metal Plate and Wood Connected 

Trusses. This standard establishes 

minimum requirements for the design 

and construction of metal-plateconnected wood Trusses. This standard 

describes the materials used in a Truss, 

both lumber and steel, and design 

procedures for Truss members and 

joints. This standard is available 

through HUD’s online reading room. 

71. UL 103–2010, Chimneys, Factory 

Built Residential Type & Building 

Heating Appliance. The proposed rule 

would update UL 103–1995, with 1999 

revisions, Factory-Built Chimneys for 

Residential Type and Building Heating 

Appliances, Ninth Edition. This 

standard sets forth the requirements for 

factory-built chimneys intended for 

venting gas, liquid, and solid-fuel fired 

residential-type appliances and building 

heating appliances in which the 

maximum continuous flue-gas outlet 

temperatures do not exceed 1,000 °F 

(538 °C). This standard is available 

through HUD’s online reading room. 

72. UL 109–2005, Tube Fittings for 

Flammable and Combustible Fluids, 

Refrigeration Service, and Marine Use. 

The proposed rule would update UL 

109–1997, with 2001 revisions, Tube 

Fittings for Flammable and Combustible 

Fluids, Refrigeration Service, and 

Marine Use, Sixth Edition. This 

standard sets forth the requirements that 

apply to the performance in flameexposure tests of flame-resistant fabrics 

of natural, synthetic or combination of 

natural and synthetic fibers, or plastic 

films intended for such use as tents, 

awnings, draperies or decorations. This 

standard is available through HUD’s 

online reading room. 


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73. UL 174–2004, Household Electric 

Storage Tanks Water Heaters. The 

proposed rule would update UL 174– 

1996, with 1997 revisions, Household 

Electric Storage Tanks Water Heaters, 

Tenth Edition. This standard sets forth 

the requirements for household electric 

storage tank and small capacity storage 

tank water heaters that are rated no 

more than 600 volts and 12 kilowatts 

and are to be installed in accordance 

with the NFPA 70 and with model 

plumbing and mechanical codes. This 

standard is available through HUD’s 

online reading room. 

74. UL 181–2013, Factory Made Air 

Ducts & Connectors. The proposed rule 

would update UL 181 Factory Made Air 

Ducts and Connectors, Ninth Edition, 

April 4, 1996, with revisions through 

May 15, 2003. This standard sets forth 

the requirements that apply to materials 

for the fabrication of air duct and air 

connector systems for use in accordance 

with the International Mechanical Code, 

International Residential Code, and 

Uniform Mechanical Code, Standards of 

the National Fire Protection Association 

for the Installation of Air-Conditioning 

and Ventilating Systems, NFPA No. 

90A, and the Installation of Warm Air 

Heating and Air-Conditioning Systems, 

NFPA No. 90B. This standard is 

available through HUD’s online reading 

room. 

75. UL 181A–2013, Closure Systems 

for Use with Rigid Air Ducts and Air 

Connectors. The proposed rule would 

update UL 181A, 1994, with 1998 

revisions, Standard for Safety Closure 

Systems for Use with Rigid Air Ducts 

and Air Connectors, Second Edition. 

This standard sets forth the 

requirements that cover closure systems 

for use with factory-made rigid air ducts 

or air connectors complying with the 

Standard for Factory-Made Air Ducts 

and Air Connectors, UL 181. Closure 

systems consist of pressure sensitive 

tapes, heat-activated tapes, and mastics. 

This standard is available through 

HUD’s online reading room. 

76. UL 263–2014, Fire Tests of 

Building Construction Materials. This 

proposed rule would add this standard 

for incorporation by reference. These 

fire tests are applicable to assemblies of 

masonry units and composite 

assemblies of structural materials for 

buildings, including bearing and other 

walls and partitions, columns, girders, 

beams, slabs, and composite slab and 

beam assemblies for floors and roofs. 

They are also applicable to other 

assemblies and structural units that 

constitute permanent integral parts of a 

finishing building. This standard is 

available through HUD’s online reading 

room. 

77. UL 268–1999, Smoke Detectors for 

Fire Protective Signaling Systems. This 

standard has already been approved for 

incorporation by reference for 

§ 3280.209(a) by the Director of the 

Office of the Federal Register and is 

unchanged but being proposed for 

incorporation by reference into 

§ 3280.703. This standard is available 

through HUD’s online reading room. 

78. UL 307A–2009, Liquid Fuel 

Burning Heating Appliances for 

Manufactured Homes & Recreational 

Vehicles. The proposed rule would 

update UL 307A–1995, Liquid Fuel 

Burning Heating Appliances for 

Manufactured Homes and Recreational 

Vehicles, Seventh Edition, with 1997 

revisions. This standard sets forth 

requirements that apply to certain types 

of liquid fuel-burning appliances 

intended for installation in 

manufactured homes and recreational 

vehicles, including travel trailers, 

camping trailers, truck campers, motor 

homes, and park trailers. This standard 

is available through HUD’s online 

reading room. 

79. UL 307B–2009, Gas Burning 

Appliances for Manufactured Homes & 

Recreational Vehicles. The proposed 

rule would update UL 307B–1995, Gas 

Burning Heating Appliances for 

Manufactured Homes and Recreational 

Vehicles, Fourth Edition, with 1998 

revisions. This standard sets forth the 

requirements that apply to the certain 

gas fuel-burning heating appliances. 

This standard is available through 

HUD’s online reading room. 

80. UL 441–2010, Gas Vents. The 

proposed rule would update UL 441, 

1996 with 1999 revisions, Gas Vents, 

Ninth Edition. This standard sets forth 

the requirements that cover Types B and 

BW gas vents and Types B and BW gas 

vent roof jacks intended for venting gas 

appliances equipped with draft hoods to 

burn only gas. This standard is available 

through HUD’s online reading room. 

81. UL 499–2014, Standard for 

Electric Heating Appliances, Fourteenth 

Edition. This proposed rule would add 

this standard for incorporation by 

reference. These requirements cover 

heating appliances rated at 600 V or less 

for use in unclassified locations in 

accordance with the National Electrical 

Code (NEC), NFPA 70–2014. This 

standard is available through HUD’s 

online reading room. 

82. UL 569–2013, Pigtails and Flexible 

Hose Connectors for LP Gas. The 

proposed rule would update UL 569, 

1995 with 2001 revisions, Pigtails and 

Flexible Hose Connectors for LP-Gas, 

Seventh Edition. This standard sets 

forth the requirements that cover 

pigtails and flexible hose connectors 

used in the assembly of fuel-supply 

systems and intended for liquefied 

petroleum gas. This standard is 

available through HUD’s online reading 

room. 

83. UL 1042–2009, Electric Baseboard 

Heating Equipment. The proposed rule 

would update UL 1042–1994, Electric 

Baseboard Heating Equipment, Fourth 

Edition, with 1998 revisions. This 

standard sets forth the requirements for 

portable and fixed electric baseboard 

heating equipment rated at 600 volts or 

less, to be employed in ordinary 

locations in accordance with NFPA 70. 

This standard is available through 

HUD’s online reading room. 

84. UL 1479–2014, Standard for Fire 

Tests of Penetration Firestops. This 

proposed rule would add this standard 

for incorporation by reference. This 

standard provides testing requirements 

of penetration firestops of various 

materials and construction that are 

intended for use in openings in fire 

resistive wall, floor, or floor-ceiling 

assemblies, and membrane type 

penetration firestops of various 

materials and construction that are 

intended for use in openings in fire 

resistive wall assemblies. This standard 

is available through HUD’s online 

reading room. 

85. UL 1995–2011, Heating and 

Cooling Equipment. The proposed rule 

would update UL 1995, Heating and 

Cooling Equipment, Second Edition, 

with 1999 revisions. This standard sets 

forth the requirements for the following 

stationary equipment for use in 

nonhazardous locations rated greater 

than 600 volts up to 7200 V, and remote 

control assemblies for such equipment: 

heat pumps, air conditioners, liquid 

chillers and compressor-evaporator or 

liquid chiller assemblies, add-on heat 

pumps and heat pump water heaters, 

refrigerant desuperheaters, and 

packaged heat pump water heaters. This 

standard is available through HUD’s 

online reading room. 

86. UL 2034–2016, Standard for 

Single and Multiple Station Carbon 

Monoxide Alarms. This standard has 

already been approved for incorporation 

by reference for § 3280.211(a) by the 

Director of the Office of the Federal 

Register and is unchanged but is being 

proposed for incorporation by reference 

into §§ 3280.209 and 3280.703. This 

standard is available through HUD’s 

online reading room. 

87. UL 60335–2–34–2012, Standard 

for Household and Similar Electrical 

Appliances—Safety, Part 2–34: 

Particular Requirements for MotorCompressors. The proposed rule would 

add this standard for incorporation by 

reference. This standard deals with the 


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safety of sealed (hermetic and semihermetic type) motor-compressors, their 

protection and control systems, if any, 

which are intended for use in 

equipment for household and similar 

purposes and which conform with the 

standards applicable to such equipment. 

This standard is available through 

HUD’s online reading room. 

88. WDMA I.S.4–2009, Industry 

Specification for Preservative Treatment 

for Millwork. The proposed rule would 

update NWWDA I.S.4–81, Water 

Repellent Preservative Non-Pressure 

Treatment for Millwork. This 

specification provides a nationally 

recognized standard for the waterrepellent preservative treatment for 

millwork and serves as a basis of 

common understanding for producers, 

preservative formulators, distributors 

and users. The standard is also intended 

to promote fair competition within the 

industry and to aid purchasers and 

users in obtaining properly treated 

millwork. This standard is available 

through HUD’s online reading room. 

In addition to reviewing these 

standards on-line, copies of the 

standards may be obtained from the 

organization that developed the 

standard as follows: 

AAMA—American Architectural 

Manufacturers Association, now 

known as Fenestration and Glazing 

Industry Alliance, 1900 E Golf Road, 

Schaumburg, Illinois 60173, website: 

www.fgiaonline.org. 

AFPA—American Forest and Paper 

Association, 1101 K Street NW, Suite 

700, Washington, DC, telephone 

number 202–463–2700, website: 

www.afandpa.org. 

AHRI—Air Conditioning, Heating & 

Refrigeration Institute, 2311 Wilson 

Blvd., Suite 400, Arlington, VA 

22201, telephone number 703–524– 

8800, fax number 703–528–3816, 

website: www.ahrinet.org. 

AISC—American Institute of Steel 

Construction, 130 East Randolph 

Street, Suite 2000, Chicago, IL 60601– 

6219, telephone number 312–670– 

2400, fax number 312–626–2402, 

website: www.aisc.org. 

AISI—American Iron and Steel Institute, 

25 Massachusetts Avenue NW, Suite 

800, Washington, DC 20001, 

telephone number 202–452–7100, 

website: www.steel.org. 

ANSI—American National Standards 

Institute, 25 West 43rd Street, 4th 

Floor, New York, NY 10036, (212) 

642–4900, fax (212) 398–0023, 

website: www.ansi.org. 

APA—The Engineered Wood 

Association (formerly American 

Plywood Association), 7011 South 

19th Street, Tacoma, WA 98466–5333, 

telephone number 253–565–6600, fax 

number 253–565–7265, website: 

www.apawood.org. 

ASME—American Society of 

Mechanical Engineers, Two Park 

Avenue, New York, NY 10016–5990, 

telephone number 800–843–2763, 

website: www.asme.org. 

ASCE/SEI—American Society of Civil 

Engineers/Structural Engineering 

Institute, 1801 Alexander Bell Drive, 

Reston, VA 20191, telephone number 

800–548–2723, website: 

www.asce.org. 

ASHRAE—American Society of Heating, 

Refrigerating and Air-Conditioning 

Engineers, 180 Technology Parkway 

NW, Peachtree Corners, GA 30092, 

telephone number 404–636–8400, fax 

404–321–5478, website: 

www.ashrae.org. 

ASME—American Society of 

Mechanical Engineers, Two Park 

Avenue, New York, NY 10016, 

telephone number 800–843–2763, 

website: www.asme.org. 

ASTM—ASTM, International 

Headquarters, 100 Barr Harbor Drive, 

West Conshohocken, PA 19428–2959, 

1–877–909–2786 (USA & Canada), fax 

number 610–832–9555, website: 

www.astm.org. 

AWC—American Wood Council, 222 

Catoctin Circle SE, Suite 201, 

Leesburg, VA 20175, telephone 

number 202–463–2766, website: 

www.awc.org. 

CPA—Composite Panel Association 

(formerly the American Hardboard 

Association), 19465 Deerfield Ave., 

Suite 306, Leesburg, VA 20176, 

telephone number 1–703–724–1128, 

website: compositepanel.org. 

HPVA—Decorative Hardwoods 

Association (formerly HPVA), 42777 

Trade West Drive, Sterling, VA 20166, 

telephone number 703–435–2900, fax 

703–435–2537, website: 

www.decorativehardwoods.org. 

IAPMO—International Association of 

Plumbing and Mechanical Officials, 

4755 East Philadelphia Street, 

Ontario, CA 91716, telephone number 

909–472–4100, fax number 909–472– 

4150, website: /www.iapmo.org. 

ICC–ES—International Code Council 

Evaluation Service, 3060 Saturn 

Street, Suite 100, Brea, CA 92821, 

telephone number 1–800–423–6587, 

fax (562) 695–4694, website: www.icces.org. 

International Organization for 

Standardization/International 

Electrotechnical Commission, Chemin 

de Blandonnet 8, CP 401—1214 

Vernier, Geneva, Switzerland, 

telephone number +41 22 749 01 11, 

website: www.iso.org. 

NFPA—National Fire Protection 

Association, 1 Batterymarch Park, 

Quincy, MA 02169, telephone number 

(617) 770–3000, fax (508) 895–8301, 

website: www.nfpa.org. 

SAE—Society of Automotive Engineers, 

400 Commonwealth Drive, 

Warrendale, PA 15096, telephone 

number 724–776–4841, fax number 

724–776–0790, website: www.sae.org. 

TPI—Truss Plate Institute, 2670 Crain 

Highway, Suite 203, Waldorf, MD 

20601, telephone number 240–587– 

5582, fax number 866–501–4012, 

website: www.tpinst.org. 

UL—Underwriters’ Laboratories, Inc., 

333 Pfingsten Road, Northbrook, IL 

60062, telephone number 847–272– 

8800, fax number 847–509–6257, 

website: www.ul.com. 

WDMA—Window and Door 

Manufacturers Association, 2001 K 

Street NW, 3rd Floor North, 

Washington, DC 20006, telephone 

number 202–367–1157, website: 

www.wdma.com. 

IV. Findings and Certifications 

Regulatory Planning and Review 

Under Executive Order 12866 

(Regulatory Planning and Review), a 

determination must be made whether a 

regulatory action is significant and, 

therefore, subject to review by the Office 

of Management and Budget (OMB) in 

accordance with the requirements of the 

order. Executive Order 13563 

(Improving Regulations and Regulatory 

Review) directs executive agencies to 

analyze regulations that are ‘‘outmoded, 

ineffective, insufficient, or excessively 

burdensome, and to modify, streamline, 

expand, or repeal them in accordance 

with what has been learned.’’ Executive 

Order 13563 also directs that, where 

relevant, feasible, and consistent with 

regulatory objectives, and to the extent 

permitted by law, agencies are to 

identify and consider regulatory 

approaches that reduce burdens and 

maintain flexibility and freedom of 

choice for the public. 

The Office of Management and Budget 

(OMB) reviewed this rule under 

Executive Order 12866 (entitled 

‘‘Regulatory Planning and Review’’). 

OMB determined that this rule is a 

‘‘significant regulatory action’’ as 

defined in section 3(f) of the Order 

(although not an economically 

significant regulatory action, as 

provided under section 3(f)(1) of the 

Order). Any changes made to the rule 

subsequent to its submission to OMB 

are identified in the docket file, which 

is available for public inspection at 

either www.regulations.gov or in the 

Regulations Division, Office of the 


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General Counsel, Room 10276, 451 7th 

Street SW, Washington, DC 20410–0500. 

HUD strongly encourages the public to 

view the docket file at 

www.regulations.gov. Due to security 

measures at the HUD Headquarters 

building, please schedule an 

appointment to review the docket file by 

calling the Regulations Division at 202– 

402–3055 (this is not a toll-free 

number). Individuals with speech or 

hearing impairments may access this 

number via TTY by calling the Federal 

Relay Service at toll-free 800–877–8339. 

Paperwork Reduction Act 

The information collection 

requirements contained in this proposed 

rule have been approved by the Office 

of Management and Budget (OMB) 

under the Paperwork Reduction Act of 

1995 (44 U.S.C. 3501–3520). In 

accordance with the Paperwork 

Reduction Act, an agency may not 

conduct or sponsor, and a person is not 

required to respond to, a collection of 

information unless the collection 

displays a valid control number. OMB 

has issued HUD the control number 

2502–0253 for the information 

collection requirements under the 

current Manufactured Housing 

Construction and Safety Standards 

Program. 

Unfunded Mandates Reform Act 

Title II of the Unfunded Mandates 

Reform Act of 1995 (2 U.S.C. 1531– 

1538) establishes requirements for 

Federal agencies to assess the effects of 

their regulatory actions on State, local, 

and tribal governments and the private 

sector. This rule will not impose any 

Federal mandates on any State, local, or 

tribal government or the private sector 

within the meaning of the Unfunded 

Mandates Reform Act of 1995. 

Environmental Review 

A Finding of No Significant Impact 

with respect to the environment has 

been made in accordance with HUD 

regulations at 24 CFR part 50, which 

implement section 102(2)(C) of the 

National Environmental Policy Act of 

1969 (42 U.S.C. 4332(2)(C)). The 

Finding of No Significant Impact is 

available for public inspection on 

www.regulations.gov and between the 

hours of 8 a.m. and 5 p.m. weekdays in 

the Regulations Division, Office of 

General Counsel, Room 10276, 

Department of Housing and Urban 

Development, 451 Seventh Street SW, 

Washington, DC 20410–0500. 

Regulatory Flexibility Act 

The Regulatory Flexibility Act (RFA) 

(5 U.S.C. 601 et seq.) generally requires 

an agency to conduct a regulatory 

flexibility analysis of any rule subject to 

notice and comment rulemaking 

requirements, unless the agency certifies 

that the rule will not have a significant 

economic impact on a substantial 

number of small entities. 

The rule, as proposed, would regulate 

establishments primarily engaged in 

making manufactured homes (NAICS 

32991). The Small Business 

Administration’s size standards define 

an establishment primarily engaged in 

making manufactured homes as small if 

it does not exceed 1,250 employees. 

HUD believes that many of the 

manufacturers included under this 

NAICS definition fall below the small 

business threshold of 1250 employees. 

The proposed rule would apply to all of 

the manufacturers. The rule would, 

thus, affect a substantial number of 

small entities. HUD has determined, 

however, that this rule would not have 

a significant economic impact on a 

substantial number of small entities. 

As discussed in the economic impact 

analysis prepared for this proposed rule, 

however, most of the revisions proposed 

by this rule would not affect costs of 

manufacturers, large or small, and 

provide benefit to homeowners. Further, 

of the nine code changes proposed by 

this rule that would affect the cost of 

design, production, or installation of 

manufactured homes, seven would 

decrease the costs of manufacturing or 

would provide manufacturers additional 

flexibility in the design of the home. 

Only two proposed revisions would 

increase costs and have an ambiguous 

impact on costs. The proposed revisions 

that increase costs, however, would 

increase fire safety save lives, reduce 

injury, and reduce property damage. 

This rule also proposes four changes 

that would eliminate the need for 

manufacturers to prepare and submit an 

Alternate Construction (AC) letter, 

providing all manufacturers, large and 

small, additional cost savings and 

increased flexibility in design. These 

provisions would provide additional 

options and increased flexibility in, for 

example, the design of accessible 

shower stalls, multi-unit homes and 

revised floor plans. 

Overall, the regulatory impact 

analysis prepared for this proposed rule 

concluded that the decreased costs of 

design, production and installation of 

manufactured homes would be between 

$9.5 million to $23.3 million, annually. 

This overall decrease in production cost 

for the manufacturer associated with 

this proposed rule would reduce burden 

and result in an overall positive 

economic impact on manufacturers and 

consumers. The regulatory impact 

analysis also provides that the rule, as 

proposed, would produce net benefits 

ranging from $18.8 million to $21.8 

million. 

Notwithstanding HUD’s 

determination that this rule, as 

proposed, would not have a significant 

economic effect on a substantial number 

of small entities, HUD specifically 

invites comments regarding this 

certification and any less burdensome 

alternatives to this rule that will meet 

HUD’s objectives as described in this 

preamble. 

Executive Order 13132, Federalism 

Executive Order 13132 (entitled 

‘‘Federalism’’) prohibits, to the extent 

practicable and permitted by law, an 

agency from promulgating a regulation 

that has federalism implications and 

either imposes substantial direct 

compliance costs on state and local 

governments and is not required by 

statute, or preempts state law, unless the 

relevant requirements of section 6 of the 

Executive Order are met. This rule does 

not have federalism implications and 

does not impose substantial direct 

compliance costs on state and local 

governments or preempt state law 

within the meaning of the Executive 

Order. 

Catalog of Federal Domestic Assistance 

The Catalog of Federal Domestic 

Assistance number for Manufactured 

Housing Construction and Safety 

Standards is 14.171. 

List of Subjects 

24 CFR Part 3280 

Housing standards, Incorporation by 

reference, Manufactured homes. 

24 CFR Part 3282 

Administrative practice and 

procedure, Consumer protection, 

Intergovernmental relations, 

Investigations, Manufactured homes, 

Reporting and recordkeeping 

requirements, Warranties. 

24 CFR Part 3285 

Housing standards, Manufactured 

homes. 

24 CFR Part 3286 

Administrative practice and 

procedure, Consumer protection, 

Intergovernmental relations, 

Manufactured homes, Reporting and 

recordkeeping requirements. 

For the reasons discussed in the 

preamble, HUD proposes to amend 24 

CFR parts 3280, 3282, 3285, and 3826 as 

follows: 


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PART 3280—MANUFACTURED HOME 

CONSTRUCTION AND SAFETY 

STANDARDS 

■ 1. The authority citation for part 3280 

continues to read as follows: 

Authority: 15 U.S.C. 2697, 42 U.S.C. 

3535(d), 5403, and 5424. 

■ 2. Amend § 3280.2 as follows: 

■ a. Revise definition for ‘‘Certification 

label’’; 

■ b. Add, in alphabetical order, a 

definition for ‘‘Dwelling’’; 

■ c. Revise definition for ‘‘Dwelling 

unit’’; 

■ d. Add, in alphabetical order, 

definitions for ‘‘Multipurpose fire 

sprinkler system’’, ‘‘Stand-alone fire 

sprinkler system’’; and ‘‘Water resistive 

barrier’’. 

The revisions and additions read as 

follows: 

§ 3280.2 Definitions. 

* * * * * 

Certification label means the 

approved form of certification by the 

manufacturer that, under § 3280.11, is 

permanently affixed to each 

transportable section of each 

manufactured home manufactured for 

sale in the United States. 

Dwelling means any structure that 

contains one to a maximum of three 

dwelling units, designed to be 

permanently occupied for residential 

living purposes. 

Dwelling unit means a single unit that 

provides complete independent living 

facilities for one or more persons, where 

the occupancy is primarily permanent 

in nature, including permanent 

provisions for separate living, sleeping, 

cooking, eating, and sanitation. 

* * * * * 

Multipurpose fire sprinkler system 

means a system that supplies domestic 

water to both plumbing fixtures and fire 

sprinklers. 

* * * * * 

Stand-alone fire sprinkler system 

means a system that is separate and 

independent from the water distribution 

system. 

* * * * * 

Water resistive barrier means a 

material behind the exterior wall 

covering that is intended to prevent 

liquid water that has penetrated behind 

the exterior covering from intruding 

further into the exterior wall assembly. 

* * * * * 

■ 3. Revise and republish § 3280.4 to 

read as follows: 

§ 3280.4 Incorporation by reference. 

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 

Program, Manufactured Housing and 

Construction Standards Division, U.S. 

Department of Housing and Urban 

Development, 451 Seventh Street SW, 

Room B–133, Washington, DC 20410, 

email mhs@hud.gov. For information on 

the availability of this material at 

NARA, email fr.inspection@nara.gov or 

go to www.archives.gov/federal-register/ 

cfr/ibr-locations.html. Copies of 

incorporated standards that are not 

available from their producer 

organizations may be obtained from the 

Office of Manufactured Housing 

Programs. The material may be obtained 

from the following source(s): 

(a) 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, Unitary 

Air-Conditioning and Air-Source Heat 

Pump Equipment, 2008; IBR approved 

for §§ 3280.511(b); 3280.703(d); 

3280.714(a). 

(2) [Reserved] 

(b) 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). 

(c) 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). 

(2) [Reserved] 

(d) 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). 

(2) [Reserved] 

(e) 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) AISC 360–10, Specification for 

Structural Steel Buildings, June 22, 

2010; IBR approved for §§ 3280.304(b); 

3280.305(j). 

(2) [Reserved] 

(f) 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 ColdFormed Steel Structural Members, 2012; 

IBR approved for §§ 3280.304(b); 

3280.305(j). 

(2) [Reserved] 

(g) 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 A208.1–2009, Particleboard, 

2009; IBR approved for § 3280.304(b). 

(5) ANSI A208.2–2002, Medium 

Density Fiberboard (MDF) For Interior 

Applications, approved May 13, 2002; 

IBR approved for § 3280.304(b). 

(6) ANSI B16.18–1984, Cast Copper 

Alloy Solder-Joint Pressure Fittings; IBR 

approved for § 3280.604(c). 

(7) ANSI C72.1–1972, section 4.3.1, 

Household Automatic Electric Storage 

Type Water Heaters; IBR approved for 

§ 3280.707(d). 

(8) ANSI LC 1–2014, Fuel Gas Piping 

Systems Using Corrugated Stainless 

Steel Tubing, 2014; IBR approved for 

§ 3280.705(b). 

(9) ANSI Z21.1–2016, Household 

Cooking Gas Appliances, 2016; IBR 

approved for § 3280.703(a). 

(10) ANSI Z21.5.1–2015, Gas Clothes 

Dryers Volume 1, Type 1 Clothes 

Dryers, 2015; IBR approved for 

§ 3280.703(a). 


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(11) ANSI Z21.10.1–2014, Gas Water 

Heaters—Volume 1, Storage Water 

Heaters with Input Ratings of 75,000 

BTU per hour or Less, 2014; IBR 

approved for §§ 3280.703(a); 

3280.707(d). 

(12) ANSI Z21.10.3–2014, Gas-fired 

Water Heaters, Volume 3, Storage Water 

Heaters with Input Ratings Above 

75,000 BTU per hour, Circulating and 

Instantaneous, 2015; IBR approved for 

§ 3280.703(a). 

(13) ANSI Z21.15–2009, Manually 

Operated Gas Valves for Appliances, 

Appliance Connector Valves and Hose 

End Valves, 2009; IBR approved for 

§§ 3280.703(c); 3280.705(c) and (l). 

(14) ANSI Z21.19–2014, Refrigerators 

Using Gas Fuel, 2014; IBR approved for 

§ 3280.703(a). 

(15) ANSI Z21.20–2014, Automatic 

Gas Ignition Systems and Components, 

2014; IBR approved for § 3280.703(d). 

(16) ANSI Z21.21–2012, Automatic 

Valves for Gas Appliances, 2012; IBR 

approved for § 3280.703(d). 

(17) ANSI Z21.22–1999, Relief Valves 

for Hot Water Supply Systems; IBR 

approved for §§ 3280.604(c); 

3280.703(d). 

(18) ANSI Z21.23–2000 (R2005) Gas 

Appliance Thermostats with ANSI 

Z21.23a–2003 (Addenda1) and ANSI 

21.23b–2005 (Addenda 2), approved 

January 17, 2001; IBR approved for 

§ 3280.703(d). 

(19) ANSI Z21.24–2006, (R2011) 

Connectors for Gas Appliances, 2011; 

IBR approved for § 3280.703(c). 

(20) ANSI Z21.40.1–1996, Gas-Fired, 

Heat Activated Air Conditioning and 

Heat Pump Appliances, 1996; IBR 

approved for §§ 3280.703(a); 

3280.714(a). 

(21) ANSI Z21.47–2012, Gas-Fired 

Central Furnaces (Except Direct Vent 

Systems), 2012; IBR approved for 

§ 3280.703(a). 

(22) ANSI Z21.75–2007, Connectors 

for Outdoor Gas Appliances and 

Manufactured Homes, 2007; IBR 

approved for § 3280.703(a). 

(23) ANSI Z34.1–1993, Third-Party 

Certification Programs for Products, 

Processes, and Services; IBR approved 

for §§ 3280.403(e); 3280.405(e). 

(24) ANSI Z97.1–2009, Standard for 

Safety Glazing Materials used in 

Buildings—Safety Performance 

Specifications and Methods of Test, 

2009; IBR approved for §§ 3280.113(d); 

3280.304(b); 3280.403(d); 3280.607(b); 

3280.703(d). 

(25) ANSI Z124.1–1987, Plastic 

Bathtub Units with Addendum 

Z124.1a–1990 and Z124.1b–1991; IBR 

approved for § 3280.604(c). 

(26) ANSI Z124.2–1987, Plastic 

Shower Receptors and Shower Stalls 

with Addendum Z124.2a–1990; IBR 

approved for § 3280.604(c). 

(27) ANSI Z124.3–1986, Plastic 

Lavatories with Addendum Z124.3a– 

1990; IBR approved for § 3280.604(c). 

(28) ANSI Z124.4–1986, Plastic Water 

Closets, Bowls, and Tanks with 

Addenda Z124.4a–1990; IBR approved 

for § 3280.604(c). 

(29) ANSI Z124.5–1997, Plastic Toilet 

(Water Closets) Seats; IBR approved for 

§ 3280.604(c). 

(30) ANSI Z124.7–1997, Prefabricated 

Plastic Spa Shells; IBR approved for 

§ 3280.604(c). 

(31) ANSI Z–124.9–1994, Plastic 

Urinal Fixtures; IBR approved for 

§ 3280.604(c). 

(h) American Society of Civil 

Engineers (ASCE), 1801 Alexander Bell 

Drive, Reston, VA 20191; telephone: 

800–548–2723; website: www.asce.org. 

(1) ASCE/SEI 7–05, Minimum Design 

Loads for Buildings and Other 

Structures, 2005; 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). 

(i) 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), InchPound Edition (1997); IBR approved for 

§§ 3280.508(a) and (e); 3280.511(a). 

(2) ANSI/ASHRAE 62.2–2013, 

Ventilation and Acceptable Indoor Air 

Quality in Low-Rise Residential 

Buildings; IBR approved for 

§§ 3280.103(d) and (e); 3280.703(d). 

(j) 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, NonVitreous 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), 2013; 

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). 


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(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 FittingsDWV; 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 FittingsDWV; IBR approved for § 3280.604(c). 

(26) ANSI/ASME B36.10–2004, 

Welding and Seamless Wrought Steel 

Pipe; 2004; IBR approved for 

§§ 3280.604(c); 3280.703(b), 

3280.705(b); 3280.706(b). 

(k) American Society of Sanitary 

Engineering (ASSE), 901 Canterbury, 

Suite A, Westlake, OH 44145; 

telephone: 440–835–3040; fax: 440– 

835–3488; website: www.asseplumbing.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, Performance 

Requirements for Water Closet Flush 

Tank Fill Valves (Ballcocks), Revision 

5–1986 (ANSI/ASSE–1979); 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–1982); IBR 

approved for § 3280.604(c). 

(7) ASSE 1014–1989, Performance 

Requirements for Hand-held Showers 

(ANSI–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; IBR approved for 

§ 3280.604(c). 

(10) ANSI/ASSE 1019–1978, 

Performance Requirements for Wall 

Hydrants, Frost Proof Automatic 

Draining, Anti-Backflow Types; 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–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 1998); IBR approved for 

§ 3280.604(c). 

(15) ASSE 1070–2004, Performance 

Requirements for Water Temperature 

Limiting Devices; IBR approved for 

§§ 3280.604(c); 3280.607(b). 

(l) 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, 2012; IBR approved for 

§§ 3280.604(c); 3280.703(b). 

(2) ASTM A74–92, Standard 

Specification for Cast Iron Soil Pipe and 

Fittings; IBR approved for § 3280.604(c). 

(3) ASTM A539–99, Standard 

Specification for Electric-ResistanceWelded Coiled Steel Tubing for Gas and 

Fuel Oil Lines; IBR approved for 

§§ 3280.703(b); 3280.705(b); 

3280.706(b). 

(4) ASTM B42–10, Standard 

Specification for Seamless Copper Pipe, 

Standard Sizes, 2010; IBR approved for 

§§ 3280.604(c); 3280.703(c). 

(5) ASTM B43–91, Standard 

Specification for Seamless Red Brass 

Pipe, Standard Sizes; IBR approved for 

§§ 3280.604(c); 3280.705(b). 

(6) ASTM B88–14, Standard 

Specification for Seamless Copper 

Water Tube, 2014; IBR approved for 

§§ 3280.604(c); 3280.703(b); 

3280.705(b); 3280.706(b). 

(7) ASTM B251–10, Standard 

Specification for General Requirements 

for Wrought Seamless Copper and 

Copper-Alloy Tube; 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, 2013; IBR approved for 

§§ 3280.703(c); 3280.705(b); 

3280.706(b). 

(9) ASTM B306–92, Standard 

Specification for Copper Drainage Tube 

(DWV); 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–14, 

Standard Specification for Gypsum 

Board, 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; 

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; IBR approved 

for § 3280.604(c). 

(15) ASTM D2564–91a, Standard 

Specification for Solvent Cements for 

Poly (Vinyl Chloride) (PVC) Plastic 

Piping Systems; IBR approved for 

§ 3280.604(c). 

(16) ASTM D2661–91, Standard 

Specification for AcrylonitrileButadiene-Styrene (ABS) Schedule 40 

Plastic Drain, Waste, and Vent Pipe and 

Fittings; 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; IBR approved for 

§ 3280.604(c). 

(18) ASTM D2846–92, Standard 

Specification for Chlorinated Poly 

(Vinyl Chloride) (CPVC) Plastic Hotand Cold-Water Distribution Systems; 

IBR approved for § 3280.604(c). 

(19) ASTM D3309–92a, Standard 

Specification for Polybutylene (PB) 

Plastic Hot- and Cold-Water Distribution 

Systems; IBR approved for 

§ 3280.604(c). 

(20) ASTM D3311–92, Standard 

Specification for Drain, Waste, and Vent 

(DWV) Plastic Fittings Patterns; IBR 

approved for § 3280.604(c). 

(21) ASTM D3679–09a, Standard 

Specification for Rigid Poly (Vinyl 

Chloride) (PVC) Siding, 2009; IBR 

approved for §§ 3280.304(b); 

3280.309(b). 


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(22) ASTM D3953–97, Standard 

Specification for Strapping, Flat Steel, 

and Seals, approved April 10, 1997; IBR 

approved for §§ 3280.306(b); 

3280.306(g). 

(23) ASTM D4442–07, Standard Test 

Methods for Direct Moisture Content 

Measurement of Wood & Wood-Base 

Materials, 2007; IBR approved for 

§ 3280.304(b). 

(24) ASTM D4444–13, Standard Test 

Methods for Use and Calibration of 

Hand-Held Moisture Meters, 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, 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, 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, 2009; 

IBR approved for § 3280.115(b). 

(31) ASTM E96/E96M–13 Standard 

Test Methods for Water Vapor 

Transmission of Materials, 2013; IBR 

approved for § 3280.504(a) and (c). 

(32) ASTM E119–14, Standard Test 

Methods for Fire Tests of Building 

Construction and Materials, 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; 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, 2009; IBR approved 

for § 3280.115(c). 

(35) ASTM E773–97, Standard Test 

Methods for Accelerated Weathering of 

Sealed Insulating Glass Units; IBR 

approved for § 3280.403(d). 

(36) ASTM E774–97, Standard 

Specification for the Classification of 

the Durability of Sealed Insulating Glass 

Units; IBR approved for § 3280.403(d). 

(37) ASTM E814–13, Standard Test 

Method for Fire Tests of Penetration 

Firestop Systems, 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 AcrylonitrileButadiene-Styrene (ABS) Schedule 40, 

Plastic Drain, Waste, and Vent Pipe with 

a Cellular Core; 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). 

(m) American Wood Council (AWC), 

222 Catoctin Circle SE, Suite 201, 

Leesburg, VA 20175; telephone: 202– 

463–2766; website: www.awc.org. 

(1) AWC, Design Values for Joists & 

Rafters, 2012; IBR approved for 

§ 3280.304(b). 

(2) AWC NDS–2015, National Design 

Specifications for Wood Construction, 

2015 Edition, with Supplement, Design 

Values for Wood Construction, 

September 30, 2014; IBR approved for 

§§ 3280.215(a); 3280.304(b). 

(3) AWC PS–20–70–2012, Span 

Tables for Joists & Rafters, 2012; IBR 

approved for § 3280.304(b). 

(n) 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). 

(o) Composite Panel Association 

(formerly the American Hardboard 

Association), 19465 Deerfield Ave, Suite 

306, Leesburg, VA 20176; telephone: 

703–724–1128; website: 

www.compositepanel.org. 

(1) ANSI/AHA A135.4–2012, Basic 

Hardboard, 2012; IBR approved for 

§ 3280.304(b). 

(2) ANSI/AHA A135.5–2012, 

Prefinished Hardboard Paneling, 2012; 

IBR approved for § 3280.304(b). 

(3) ANSI/AHA A135.6–2012, 

Hardboard Siding, 2012 IBR approved 

for § 3280.304(b). 

(p) 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, 

2009; 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). 

(q) 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–2012, Panel Design 

Specification, 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–2011, Engineered 

Wood Construction Guide, 2011; IBR 

approved for § 3280.304(b). 

(4) APA H815G–2013, Design & 

Fabrication of All-Plywood Beams, 

2013; IBR approved for § 3280.304(b). 

(5) APA PS1–2009, Structural 

Plywood (with Typical APA 

Trademarks), 2009; IBR approved for 

§ 3280.304(b). 

(6) APA S811P–2013, Design & 

Fabrication of Plywood Curved Panels, 

2013; IBR approved for § 3280.304(b). 

(7) APA S812S–2013, Design & 

Fabrication of Glued Plywood-Lumber 

Beams, 2013; IBR approved for 

§ 3280.304(b). 

(8) APA U813M–2012, Design & 

Fabrication of Plywood Stressed-Skin 

Panels, 2012; IBR approved for 

§ 3280.304(b). 

(9) APA U814J–2013, Design & 

Fabrication of Plywood, Sandwiched 

Panels, 2013; IBR approved for 

§ 3280.304(b). 

(10) APA Y510–1998, Plywood 

Design, 1998; IBR approved for 

§ 3280.304(b). 

(r) 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 


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Specifications); IBR approved for 

§ 3280.604(c). 

(2) FS ZZ–R–765B–1970, Silicone 

Rubber, (with 1971 Amendment); IBR 

approved for § 3280.611(d). 

(s) 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 

Window and Sliding Glass Doors, 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 Door, 2012; 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, 

2012; IBR approved for § 3280.404(b) 

and (e). 

(6) AAMA/WDMA/CSA 101/I.S.2/ 

A440–17 North American Fenestration 

Standard/Specification for Windows, 

Doors, and Skylights, 2017; IBR 

approved for §§ 3280.304(b); 

3280.403(b) and (e); 3280.404(b) and (e); 

3280.405(b) and (e). 

(t) HUD User, 11491 Sunset Hills 

Road, Reston, VA 20190–5254; 

telephone 800–245–2691; website: 

www.huduser.gov. 

(1) HUD User No. 0005945, Overall Uvalues and Heating/Cooling Loads— 

Manufactured Homes, February 1992; 

IBR approved for § 3280.508(b). 

(2) [Reserved] 

(u) 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). 

(2) [Reserved] 

(v) 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; IBR approved for 

§ 3280.604(c). 

(2) IAPMO PS 4–90, Material and 

Property Standard for Drains for 

Prefabricated and Precast Showers; IBR 

approved for § 3280.604(c). 

(3) IAPMO PS 5–84, Material and 

Property Standard for Special Cast Iron 

Fittings; IBR approved for § 3280.604(c). 

(4) IAPMO PS 9–84, Material and 

Property Standard for Diversion Tees 

and Twin Waste Elbow; IBR approved 

for § 3280.604(c). 

(5) IAPMO PS 14–89, Material and 

Property Standard for Flexible Metallic 

Water Connectors; IBR approved for 

§ 3280.604(c). 

(6) IAPMO PS 23–89, Material and 

Property Standard for Dishwasher Drain 

Airgaps; IBR approved for § 3280.604(c). 

(7) IAPMO PS 31–91, Material and 

Property Standards for Backflow 

Prevention Assemblies; IBR approved 

for § 3280.604(c). 

(8) IAPMO TSC 9–2003, Standard for 

Gas Supply Connectors for 

Manufactured Homes, 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). 

(w) 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 1539–2014, ICC–ES 

Evaluation Report, Power Driven 

Staples and Nails, 2014; IBR approved 

for § 3280.304(b). 

(2) [Reserved] 

(x) International Organization for 

Standardization/International 

Electrotechnical Commission, 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 Conformity 

Assessment—Requirements for Bodies 

Certifying Products, Processes and 

Services, 2012; IBR approved for 

§ 3280.403(e); 3280.404(e); 3280.405(e). 

(2) [Reserved] 

(y) 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; IBR 

approved for § 3280.611(d). 

(2) [Reserved] 

(z) 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; 

IBR approved for § 3280.803(f). 

(2) [Reserved] 

(aa) 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 Ufactors, 1997 Edition; IBR approved for 

§ 3280.508(e). 

(2) [Reserved] 

(bb) 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–2010, Standard for the 

Installation of Sprinkler Systems in One 

and Two Family Dwellings and 

Manufactured Homes, 2010 Edition; IBR 

approved for § 3280.214(b), (e) and (o). 

(2) NFPA 31–2011, Installation of OilBurning Equipment, 2011; IBR approved 

for §§ 3280.703(d); 3280.707(f). 

(3) NFPA 54/ANSI Z223.1, National 

Fuel Gas Code, 2015; IBR approved for 

§ 3280.703(d). 

(4) NFPA 58–2014, Standard for the 

Storage and Handling of Liquefied 

Petroleum Gas, 2014 Edition, 2014; IBR 

approved for § 3280.703(d). 

(5) NFPA 70–2014, National Electrical 

Code, 2014; IBR approved for 

§§ 3280.607(c); 3280.801(a) and (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–2015, Warm Air 

Heating and Air Conditioning Systems, 

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; IBR approved 

for § 3280.211(b). 

(cc) U.S. Department of Commerce, 

National Institute of Standards and 


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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) PS 1–95, Construction and 

Industrial Plywood (With Typical APA 

Trademarks); IBR approved for 

§ 3280.304(b). 

(2) Voluntary Product Standard PS 

2–04, Performance Standard for WoodBased Structural-Use Panels, December 

2004; IBR approval for § 3280.304(b). 

(dd) 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). 

(ee) 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). 

(2) [Reserved] 

(ff) Society of Automotive Engineers 

(SAE), 400 Commonwealth Drive, 

Warrendale, PA 15096; telephone: 724– 

776–0790; website: www.sae.org/. 

(1) SAE J533b-2007, Flares for Tubing, 

2007; IBR approved for §§ 3280.703(d); 

3280.705(f). 

(2) [Reserved] 

(gg) Steel Joist Institute (SJI), 234 West 

Cheves Street, Florence, SC 29501; 

telephone: 843–407–4091; website: 

www.steeljoist.org. 

(1) Standard Specifications Load 

Tables and Weight Tables for Steel Joists 

and Girders, SJI 1994, Fortieth Edition; 

IBR approved for § 3280.304(b). 

(2) [Reserved] 

(hh) 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 1–2007 National Design 

Standard for Metal Plate Connected 

Wood Truss Construction, 2007; IBR 

approved for § 3280.304(b). 

(2) [Reserved] 

(ii) 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 103–2010, Chimneys, FactoryBuilt Chimneys Residential Type & 

Building Heating Appliance, 2010; IBR 

approved for § 3280.703(d). 

(3) UL 109–2005, Tube Fittings for 

Flammable and Combustible Fluids, 

Refrigeration Service, and Marine Use, 

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 174–2004, Household Electric 

Storage Tank Water Heaters, 2004; IBR 

approved for § 3280.703(a). 

(6) UL 181–2013, Factory-Made Air 

Ducts & Air Connectors, 2013; IBR 

approved for §§ 3280.702, 3280.703(d); 

3280.715(a) and (e). 

(7) UL 181A–2013, Closure Systems 

for Use with Rigid Air Ducts and Air 

Connectors, 2013; IBR approved for 

§§ 3280.703(d); 3280.715(c). 

(8) UL 181B, 1995, with 1998 

revisions, Standard for Safety Closure 

Systems for use with Flexible Air Ducts 

and Air Connectors, First Edition; 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 

§§ 3280.208(a); 3280.211(a). 

(10) UL 263–2014, Fire Tests of 

Building Construction Materials, 2014; 

IBR approved for § 3280.215(a) and (d). 

(11) UL 268–1999, Smoke Detectors 

for Fire Protective Signaling Systems, 

1999; IBR approved for §§ 3280.209(a); 

3280.703(a). 

(12) UL 307A–2009, Liquid Fuel 

Burning Heating Appliances for 

Manufactured Homes & Recreational 

Vehicles, 2009; IBR approved for 

§§ 3280.703(a); 3280.707(f). 

(13) UL 307B–2009, Gas Burning 

Appliances for Manufactured Homes & 

Recreational Vehicles, 2009; IBR 

approved for § 3280.703(a). 

(14) UL 311, 1994, with 1998 

revisions, Roof Jacks for Manufactured 

Homes and Recreational Vehicles, 

Eighth Edition; IBR approved for 

§ 3280.703(d). 

(15) UL 441–2010, Gas Vents, 2010; 

IBR approved for § 3280.703(d). 

(16) UL 499–2014, Standard for 

Electrical Heating Appliances, Edition 

2014; IBR approved for § 3280.703(a). 

(17) UL 569–2013, Pigtails & Flexible 

Hose Connectors for LP Gas, 2013; IBR 

approved for §§ 3280.703(d); 

3280.705(l). 

(18) UL 737, 1996, Fireplace Stoves, 

Eight Edition, 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 1042–2009, Electric 

Baseboard Heating Equipment, 2009; 

IBR approved for § 3280.703(a). 

(21) UL 1096, 1986, Electric Central 

Air Heating Equipment, Fourth Edition 

with revisions July 16, 1986, and 

January 30, 1988; IBR approved for 

§ 3280.703(a). 

(22) UL 1479–2014, Standard for Fire 

Tests of Penetration Firestops, Fourth 

Edition, May 16, 2014; IBR approved for 

§ 3280.215(d). 

(23) UL 1482, 1996, with 2000 

revisions, Solid-Fuel Type Room 

Heaters, Fifth Edition; IBR approved for 

§ 3280.703(d). 

(24) UL 1995–2011, Heating and 

Cooling Equipment, 2011; IBR approved 

for § 3280.703(a). 

(25) UL 2021–1997. Fixed and 

Location-Dedicated Electric Room 

Heaters, Second Edition, with 1998 

revisions; IBR approved for 

§ 3280.703(a). 

(26) ANSI/UL 2034–2016, Standard 

for Single and Multiple Station Carbon 

Monoxide Alarms, Third Edition, dated 

February 28, 2008 (including revisions 

through May 11, 2016); IBR approved 

for §§ 3280.209(a); 3280.211(a); 

3280.703(a). 

(27) UL 60335–2–34–2012, Standard 

for Household and Similar Electrical 

Appliances—Safety, Part 2–34: 

Particular Requirements for MotorCompressors, 2012; IBR approved for 

§ 3280.703(a). 

(jj) 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). 

(2) [Reserved] 

(kk)—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.4–2009 Industry 

Specification for Preservative Treatment 

for Millwork; IBR approved for 

§ 3280.405(c). 

(2) [Reserved] 

■ 4. Amend § 3280.5 as follows: 

■ a. Revise the first sentence of the 

introductory text; and 


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■ b. In paragraph (g), remove the text 

‘‘ASCE/SEI 7–88’’ and add, in its place, 

‘‘ASCE/SEI 7–05’’. 

The revision reads as follows: 

§ 3280.5 Data Plate. 

Each dwelling unit of a manufactured 

home must bear a data plate affixed in 

a permanent manner near the main 

electrical panel or other readily 

accessible and visible location. * * * 

* * * * * 

■ 5. Revise § 3280.102 to read as 

follows: 

§ 3280.102 Definitions. 

Air, exhaust means air discharged 

from any space to the outside by an 

exhaust system. 

Air, outdoor means air from outside 

the building taken into a ventilation 

system or air from outside the building 

that enters a space through infiltration 

or natural ventilation openings. 

Exhaust system means one or more 

exhaust fans that remove air from the 

building, causing outdoor air to enter by 

ventilation inlets or normal leakage 

paths through the building envelope. 

Gross floor area means all space, wall 

to wall, including recessed entries not to 

exceed five (5) square feet and areas 

under built-in vanities and similar 

furniture. When the ceiling height is 

less than that specified in § 3280.104, 

the floor area under such ceilings must 

not be included in the gross floor area. 

Floor area of closets must also not be 

included in the gross floor area. 

Habitable room means a room or 

enclosed floor space arranged for living, 

eating, food preparation, or sleeping 

purposes not including bathrooms, 

foyers, hallways, and other accessory 

floor space. 

Laundry area means an area 

containing or designed to contain a 

laundry tray, clothes washer and/or 

clothes dryer. 

Mechanical ventilation means the 

active process of supplying air to or 

removing air from an indoor space by 

powered equipment such as motordriven fans and blowers but not by 

devices such as wind-turbine ventilators 

and mechanically operated windows. 

Natural ventilation means ventilation 

occurring as a result of natural forces, 

such as wind pressure or differences in 

air density, through intentional 

openings such as open windows or 

doors. 

Supply system means one or more 

fans that supply outdoor air to the 

building, causing indoor air to leave by 

normal air leakage through the building 

envelope. 

Ventilation means the process of 

supplying outdoor air to or removing 

indoor air from the manufactured home 

by natural or mechanical means. Such 

air may or may not have been 

conditioned. 

■ 6. Amend § 3280.103 as follows: 

■ a. Revise introductory text of 

paragraph (b) and paragraphs (b)(1) and 

(3), (c) and (3), and (d); and 

■ b. Add paragraph (e). 

The revisions and addition read as 

follows: 

§ 3280.103 Light and Ventilation. 

* * * * * 

(b) Whole-house ventilation. Each 

dwelling unit of a manufactured home 

must be provided with a whole-house 

mechanical ventilation having the 

capability to provide a minimum 

capacity of 0.035 ft3/min/ft2 of interior 

floor space or its hourly average 

equivalent. This ventilation capacity 

must be in addition to any openable 

window area. In no case shall the 

installed ventilation capacity of the 

system be less than 50 cfm. The 

following criteria must be adhered to: 

(1) The ventilation capacity must be 

provided by a mechanical ventilation 

system or a combination natural and 

mechanical ventilation system. 

* * * * * 

(3) The ventilation supply system or 

a portion of the ventilation supply 

system is permitted to be integral with 

the home’s heating or cooling system. 

The supply system must be capable of 

operating independently of the heating 

and cooling modes. A mechanical 

ventilation supply system that is 

integral with the heating and cooling 

system is to be listed as part of the 

heating and cooling system or listed as 

suitable for use with that system. 

* * * * * 

(c) * * * 

(2) Kitchens must be provided with a 

local exhaust system that is capable of 

exhausting 100 cfm to the outside of the 

home. The local exhaust system must be 

located as close as possible to the range 

or cook top, but in no case farther than 

3 feet horizontally from the range or 

cooktop. 

(3) Each bathroom and separate toilet 

compartment must be provided with a 

local exhaust system capable of 

exhausting 50 cfm to the outside of the 

home. A separate toilet compartment 

may be provided with 1.5 square feet of 

openable glazed area in place of 

mechanical ventilation, except in Uo 

value Zone 3. 

* * * * * 

(e) Airflow rating. During the design 

stage, the airflow rating at a pressure of 

0.25 inch water column may be used, 

provided the duct sizing meets the 

prescriptive requirements of Table 5.3 

in ANSI/ASHRAE 62.2 (incorporated by 

reference, see § 3280.4) or ventilation 

system manufacturer’s design criteria. 

■ 7. Amend § 3280.105 as follows: 

■ a. Revise the introductory text of 

paragraph (a); and 

■ b. Revise paragraphs (a)(2)(i) and 

(b)(2). 

The revisions read as follows: 

§ 3280.105 Exit facilities; exterior doors. 

(a) Number and location of exterior 

doors. Each dwelling unit of a 

manufactured home must have a 

minimum of two exterior doors located 

remotely from each other. 

* * * * * 

(2) * * * 

(i) Both of the required doors must not 

be in the same room. 

* * * * * 

(b) * * * 

(2) All exterior swinging doors must 

provide a minimum 28 inch wide by 74 

inch high clear opening. All exterior 

sliding glass doors must provide a 

minimum 28 inch wide by 72 inch high 

clear opening. One exterior door must 

provide a minimum of 32 inch wide by 

74 inch high clear opening. 

* * * * * 

■ 8. Amend § 3280.109 by revising 

paragraph (a) to read as follows: 

§ 3280.109 Room requirements. 

(a) Each dwelling unit of a 

manufactured home must have a 

minimum of 150 square feet of gross 

floor area. 

* * * * * 

■ 9. Revise § 3280.112 to read as 

follows: 

§ 3280.112 Hallways. 

Hallways must have a minimum 

horizontal dimension of 28 inches 

measured from the interior finished 

surface to the interior finished surface of 

the opposite wall. For manufactured 

homes with 14 feet of inside width or 

more, hallways must have a minimum 

horizontal dimension of 30 inches 

measured from the interior finished 

surface to the interior finished surface of 

the opposite wall. When appliances are 

installed in a laundry area, the 

measurement must be from the front of 

the appliance to the opposite finished 

exterior surface. When appliances are 

not installed and a laundry area is 

provided, the area must have a 

minimum clear depth of 27 inches in 

addition to the 28 inches or 30 inches 

(for manufactured homes with14 feet of 

inside width or greater) required for 

passage. In addition, a notice of the 

available clearance for washer/dryer 


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units must be posted in the laundry 

area. Minor protrusions into the 

minimum hallway width by doorknobs, 

trim, smoke alarms or light fixtures are 

permitted. 

■ 10. Amend § 3280.113 by revising 

paragraph (d) to read as follows: 

§ 3280.113 Glass and glazed openings. 

* * * * * 

(d) Safety glazing is any glazing 

material capable of meeting the 

requirements of Consumer Product 

Safety Commission 16 CFR part 1201, or 

Standard for Safety Glazing Materials 

used in Buildings—Safety Performance 

Specifications and Methods of Test for 

Safety Glazing Materials Used in 

Buildings, ANSI Z97.1 (incorporated by 

reference, see § 3280.4). 

* * * * * 

■ 11. Add § 3280.115 to subpart B to 

read as follows: 

§ 3280.115 Sound transmission between 

multi-dwelling unit manufactured homes. 

(a) Scope. This section applies to 

common interior walls, partitions, and 

floor/ceiling assemblies between 

adjacent dwelling units. 

(b) Air-borne sound. Walls, partitions, 

and floor/ceiling assemblies between 

stories separating dwelling units from 

each other must have a sound 

transmission class (STC) of not less than 

34 for air-borne noise when tested in 

accordance with ASTM E90 

(incorporated by reference, see § 3280.4) 

or calculated. Penetrations or openings 

in construction assemblies for piping; 

electrical devices; recessed cabinets; 

bathtubs; soffits; or heating, ventilating, 

or exhaust ducts must be sealed, lined, 

insulated or otherwise treated to 

maintain the required ratings. This 

requirement does not apply to dwelling 

unit entrance doors; however, such 

doors must be tight fitting to the frame 

and sill. 

(c) Structure-borne sound. Floor/ 

ceiling assemblies between stories 

separating dwelling units must have an 

impact insulation class (IIC) rating of 

not less than 34 when tested in 

accordance with ASTM E492 

(incorporated by reference, see 

§ 3280.4). 

■ 12. Amend § 3280.203 by revising 

(c)(1)(ii) to read as follows: 

§ 3280.203 Flame spread limitations and 

fire protective requirements. 

* * * * * 

(c) * * * 

(1) * * * 

(ii) Exposed bottoms and sides of 

kitchen cabinets as required by 

§ 3280.204 except that non-horizontal 

surfaces above the horizontal plane 

formed by the bottom of the range hood 

are not considered exposed; 

* * * * * 

■ 13. Amend § 3280.204 by revising the 

first sentence of paragraph (a) and 

adding paragraph (f) to read as follows: 

§ 3280.204 Kitchen cabinet protection. 

(a) The exposed bottom and sides of 

combustible kitchen cabinets over 

cooking ranges to a horizontal distance 

of 6 inches from the outside edge of the 

cooking range must be protected with at 

least 5/16 inch thick gypsum board or 

equivalent limited combustible material. 

* * * 

* * * * * 

(f) Range hood finish materials must 

be installed with at least 5/16 inch thick 

gypsum board or equivalent limited 

combustible material between the metal 

range hood and finish materials. Except 

for sealants and other trim materials 2 

inches or less in width, finish materials 

shall have a flame spread rating not 

exceeding the Flame Spread Index of 

200. 

■ 14. Amend § 3280.209 by revising 

paragraph (a) to read as follows: 

§ 3280.209 Smoke alarm requirements. 

(a) Labeling. Each smoke alarm 

required under paragraph (b) of this 

section must conform with the 

requirements of UL 217 (incorporated 

by reference, see § 3280.4), or ANSI/UL 

268 (incorporated by reference, see 

§ 3280.4), and must bear a label to 

evidence conformance. Combination 

smoke and carbon monoxide alarms 

shall be listed and must bear a label to 

evidence conformance with UL 217 

(incorporated by reference, see § 3280.4) 

and ANSI/UL 2034 (incorporated by 

reference, see § 3280.4). 

* * * * * 

■ 15. Add §§ 3280.214 through 3280.216 

to subpart C to read as follows: 

§ 3280.214 Fire sprinkler system 

requirements. 

(a) General. (1) Fire Sprinkler systems 

are not required by this subpart; 

however, when a manufacturer installs 

a fire sprinkler system, this section 

establishes the requirements for the 

installation of a fire sprinkler system in 

a manufactured home. 

(2) This section applies to both standalone and multipurpose fire sprinkler 

systems that do not include the use of 

antifreeze. 

(3) A back-flow preventer is not 

required to separate a stand-alone 

sprinkler system from the water 

distribution system. 

(b) Design. The design of the fire 

sprinkler system itself shall be in 

accordance with NFPA 13D 

(incorporated by reference, see § 3280.4) 

or a section which is deemed to be 

equivalent to the design method used in 

NFPA 13D. 

(c) Sprinkler Location. Sprinklers 

must be installed to protect all areas 

inside the manufactured home except: 

(1) Attics and normally unoccupied 

concealed spaces; 

(2) Closets not exceeding 24 square 

feet in area, with the smallest dimension 

not greater than three feet and having at 

least one base layer of minimum 5/16 

inch thick gypsum board on wall and 

ceiling surfaces; 

(3) Bathrooms not more than 55 

square feet in area; and, 

(4) Garages, carports, open attached 

porches and similar structures; and 

(5) Closets or alcoves containing heatproducing appliance, regardless of size 

if the closet or alcove complies with 

§ 3280.203(b)(3). 

(d) Sprinklers. Sprinklers shall be new 

listed residential sprinklers and shall be 

installed in accordance with the 

sprinkler manufacturer’s installation 

instructions. 

(e) Temperature rating and separation 

from heat sources. Sprinklers are to 

have a temperature rating and be 

separated from heat sources as follows: 

(1) Sprinklers are to a have a 

temperature rating of no less than 135 °F 

(57°C) and not more than 170 °F (77°C) 

and be separated from heat sources as 

required by the sprinkler manufacturer’s 

installation instructions. 

(2) Sprinklers are to have an 

intermediate temperature rating not less 

than 175 °F (79°C) and not more than 

225 °F (107°C) and be located within the 

distance to a heat source as specified in 

Table 7.5.5.3 of NFPA 13D 

(incorporated by reference, see § 3280.4) 

when installed in: 

(i) attics; 

(ii) concealed spaces located directly 

beneath a roof; and 

(iii) directly under skylights where 

the sprinkler is exposed to direct 

sunlight. 

(f) Freezing areas. Piping must be 

protected from freezing as required by 

§ 3280.603(b)(4). Where sprinklers are 

required in areas subject to freezing, 

dry-sidewall or dry-pendent sprinklers 

extending from nonfreezing area into a 

freezing area, must be installed. 

(g) Sprinkler area of coverage. The 

area of coverage of a single sprinkler 

shall not exceed 400 square feet and 

shall be based on the sprinkler listing 

and the sprinkler manufacturer’s 

installation instructions. Sprinkler 

discharge shall not be blocked by 

obstructions unless additional 

sprinklers are installed to protect the 

obstructed area. Sprinkler separation 


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from obstructions shall comply with the 

minimum distances specified in the 

sprinkler manufacturer’s instructions. 

Pendent sprinklers within 3 feet of the 

center of a ceiling fan, surface-mounted 

ceiling light or other similar object shall 

be considered to be obstructed and 

additional sprinklers shall be installed, 

except that in all closets 50 square feet 

or less in size, one sprinkler shall be 

sufficient. Sidewall sprinklers within 5 

feet of the center of a ceiling fan, 

surface-mounted ceiling light or other 

similar object shall be considered to be 

obstructed and additional sprinklers 

shall be installed. 

(h) Sprinkler installation on systems 

assembled with solvent cement. The 

solvent cementing of threaded adapter 

fittings shall be completed and threaded 

adapters for sprinklers shall be verified 

as being clear of excess cement prior to 

the installation of sprinklers on systems 

assembled with solvent cement. 

(i) Painting, caulking or modifying 

sprinklers is prohibited. Painted, 

caulked, modified, or damaged 

sprinklers shall be replaced. 

(j) Sprinkler piping support. Sprinkler 

piping shall be supported in accordance 

with § 3280.608. Sprinkler piping must 

comply with all requirements for coldwater distribution piping. For 

multipurpose piping systems, the 

sprinkler piping shall connect to and be 

part of the cold-water distribution 

piping system. Nonmetallic pipe and 

tubing, such as CPVC and PEX, shall be 

listed for use in residential fire sprinkler 

systems. Nonmetallic pipe and tubing 

systems shall be protected from 

exposure to the living space by a layer 

of not less than 5/16 inch thick gypsum 

wallboard, 1⁄2 inch thick plywood, or 

other material having a 15 minute fire 

rating. Pipe protection shall not be 

required where exposed piping is 

permitted by the pipe listing and in 

areas that do not require protection with 

sprinklers as specified in paragraph (c) 

of this section. 

(k) Shutoff valves. Shutoff valves shall 

not be installed in any location where 

the valve would isolate piping serving 

one or more sprinklers, except for 

shutoff valves installed for the entire 

water distribution system. 

(l) Means of drainage. A means to 

drain the sprinkler system shall be 

provided on the system side of the water 

supply inlet. 

(m) Minimum flow rate. The sprinkler 

system must provide at least the flow 

rate required to produce a minimum 

discharge density of 0.05 gpm/ft2 from 

each sprinkler and be determined by 

using the sprinkler manufacturer’s 

published data for the specific sprinkler 

model based on the area of coverage, 

ceiling configuration, temperature rating 

and any other conditions specified by 

the sprinkler manufacturer. 

(n) Design flow rate. The design flow 

rate for the sprinkler system shall be 

based on the following: 

(1) The design flow rate for a room 

having only one sprinkler shall be the 

flow rate required for that sprinkler, as 

determined by paragraph (m) of this 

section. 

(2) The design flow rate for a room 

having two or more sprinklers shall be 

determined by identifying the sprinkler 

in that room with the highest required 

flow rate, based on paragraph (m) of this 

section, and multiplying that flow rate 

by two. 

(3) Where the sprinkler 

manufacturer’s instructions specify 

different criteria for ceiling 

configurations that are not smooth, flat 

and horizontal, the required design flow 

rate for the room shall comply with the 

sprinkler manufacturer’s instructions. 

(4) The design flow rate for the 

sprinkler system shall be the flow 

required by the room with the largest 

flow rate, based on paragraph (n)(1), (2), 

or (3) of this section. 

(5) For the purposes of this section, it 

shall be permissible to reduce the 

design flow rate for a room by 

subdividing the space into two or more 

rooms, where each room is evaluated 

separately with respect to the required 

design flow rate. Walls and a ceiling 

shall bound each room. Openings in 

walls shall have a lintel (header) not 

less than 8 inches in depth and each 

lintel shall form a solid barrier between 

the ceiling and the top of the opening. 

(o) Pipe sizing and minimum required 

supply pressure. (1) The piping to 

sprinklers shall be sized for the flow 

required by paragraph (n) of this 

section. The flow rate required to 

supply the plumbing fixtures shall not 

be required to be added to the sprinkler 

design flow rate. The minimum pipe 

size from the water supply inlet to any 

sprinkler shall be 3⁄4 inch diameter. 

Threaded adapter fittings at the point 

where sprinklers are attached to the 

piping shall be a minimum of 1⁄2 inch 

diameter. 

(2) Piping shall be sized by 

determining the available pressure to 

offset friction loss in piping and 

identifying a piping material, diameter 

and length in accordance with the 

following: 

(i) Minimum Supply Pressure 

Required. The following equation shall 

be used to determine the required 

supply pressure at the fire sprinkler 

system supply inlet. 

Equation 1 to paragraph (o)(2) 

PSUP = PT+PLE+PSP 

Where: 

PSUP = Pressure required at the fire sprinkler 

system supply inlet. (Note: This is the 

pressure which is entered on the Fire 

Sprinkler System Certificate under 

‘‘Minimum Water Supply Required.’’) 

PT = Pressure loss in the fire sprinkler 

system piping. 

PLE = Pressure loss from elevation change. 

(Note: Normally 4.4 psi for single story 

houses and 8.7 psi for two story houses). 

PSP = Maximum pressure required by a 

sprinkler. 

(ii) [Reserved] 

(3) Determination of PSUP shall be in 

accordance with the following 

procedure: 

(i) Step 1. Determine PT. For the 

specific design in question determine 

the distance (developed length) from the 

fire sprinkler system supply inlet to the 

most remote sprinkler. Refer to Tables 

8.4.10.2(a) through (i) of NFPA 13D 

(incorporated by reference, see § 3280.4) 

and select the correct table for the fire 

sprinkler system pipe material and pipe 

size used. Using the system design flow 

rate from paragraph (m) of this section 

find the ‘‘Allowable length of pipe’’ 

column which is closest to, but not less 

than, the developed length for the 

design in question. The ‘‘Allowable 

Pressure’’ in the column heading is PT. 

(Note: Interpolation between 

‘‘Allowable length of pipe’’ (developed 

length) and ‘‘Available Pressure’’ (PT) is 

permitted. Example: Using Table 

8.4.10.2(d) of NFPA 13D, Sprinkler 

Flow Rate = 16 gpm, developed length 

= 70 feet, Available Pressure (PT) = 17.5 

psi) 

(ii) Step 2. Determine PLE. Refer to 

Table 8.4.10.2.(c) of the NFPA 13D. The 

elevation used in applying the table 

shall be the difference between the 

highest sprinkler and the fire sprinkler 

system supply inlet. Interpolation is 

permitted. (Note: If the highest sprinkler 

is lower than the fire sprinkler system 

supply inlet then subtract this value in 

equation 1 to paragraph (o)(2) of this 

section, instead of adding it.) 

(iii) Step 3. Determine PSP. Determine 

the maximum pressure required by any 

individual sprinkler based on the flow 

rate for each sprinkler as set forth in 

paragraph (m) of this section. The 

required pressure is provided in the 

data provided by the sprinkler 

manufacturer for the specific model 

based on the selected flow rate. 

(p) Testing. The fire sprinkler system 

piping shall be subject to the same test 

as the water distribution system in 

§ 3280.612(a). For multipurpose fire 

sprinkler systems, it shall be permitted 

to test the fire sprinkler system piping 

simultaneously with the domestic water 

distribution system. 


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(q) Fire Sprinkler System Certificate. 

The manufacturer must permanently 

affix a Fire Sprinkler System Certificate 

adjacent to the data plate. The 

manufacturer must specify on the Fire 

Sprinkler System Certificate the 

minimum required pressure in pounds 

per square inch (psi) and flow rate in 

gallons per minute (gpm) for the water 

supply system. The Fire Sprinkler 

System Certificate is to include all the 

statements and required information 

arranged in substantially the same 

layout as shown in the following 

example. 

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BILLING CODE 4210–67–C 

(r) Sign or valve tag. A sign or valve 

tag shall be installed at the fire sprinkler 

system supply inlet stating the 

following: 

Warning, the water supply system 

supplies fire sprinklers that require 

specific flows and pressures to fight a 

fire. Devices that restrict the flow or 

decrease the pressure or automatically 

shut off the water to the fire sprinkler 

system, such as water filtration systems, 

water softeners and automatic shutoff 

valves, shall not be added to this system 

without first contacting the home 

manufacturer or a fire protection 

specialist. Please do not remove this 

sign. 

(s) Component instructions. If the 

manufacturer of a fire sprinkler system 

component used in a system provides 

written instructions and procedures for 

the operation, maintenance, periodic 

testing, and/or repair of the component, 

a copy of the instructions and 

procedures shall be left in each home 

for the consumer. 

(t) Manufacturer’s installation 

instructions for fire sprinkler systems. 

Manufacturer’s installation instructions 

must provide the following: 

(1) Specific instructions for the 

inspection and testing of the fire 

sprinkler system during the installation 

of the home. Testing requirements are to 

be consistent with § 3280.612(a). 

(2) Required statement. If this 

manufactured home contains a fire 

sprinkler system, the installer of the 

home shall verify that the water supply 

at the site meets the minimum 

conditions described on the Fire 

Sprinkler System Certificate in the 

home (located next to the data plate). 

The installer shall also complete the 

name, address and date on the 

Certificate. 

§ 3280.215 Multi-dwelling unit 

manufactured homes. 

(a) General. In manufactured homes 

with more than one dwelling unit, each 

dwelling unit must be separated from 

each other by wall and floor assemblies 

having not less than a 1 hour fire 

resistance rating when tested in 

accordance with ASTM E119 or UL 263 

(both incorporated by reference, see 

§ 3280.4) or having a fire resistance 

rating of not less than a 1 hour when 

calculated in accordance with Chapter 

16 of the National Design Specification 

for Wood Construction, (AWS NDS) 

(incorporated by reference, see 

§ 3280.4). 

(b) Fire resistance walls. Fireresistance-rated floor/ceiling and wall 

assemblies must extend to and be tight 

against the exterior wall, and wall 

assemblies must extend from the 

foundation to the underside of the roof 

sheathing except as follows: 

(1) Wall assemblies need not extend 

through attic spaces where the ceiling is 

protected by not less than 5⁄8 inch Type 

X gypsum board and attic draftstop is 

constructed as specified in § 3280.216 is 

provided above and along the wall 

assembly separating the dwelling units; 

and 

(2) The structural framing supporting 

the ceiling the ceiling is protected by 

not less than 1⁄2 inch gypsum board or 

equivalent. 

(c) Supporting construction. Where 

floor assemblies are required to be fire 

resistant rated by this section, the 

supporting construction of such 

assemblies must have an equal or 

greater fire resistance rating. 

(d) Dwelling unit rated penetrations. 

Penetrations of wall or floor-ceiling 

assemblies in multi-dwelling unit 

manufactured homes are required to be 

fire-resistance rated in accordance with 

this section. 


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(1) Through penetrations. (i) Through 

penetrations must be installed as tested 

in the approved fire-resistance rated 

assembly; or 

(ii) Through penetrations must be 

protected by an approved penetration 

fire stop system installed as tested in 

accordance with ASTM E814 or UL 

1479 (incorporated by reference, see 

§ 3280.4), with a positive pressure 

differential of not less than 0.01 inch of 

water and must have an F rating of not 

less than the required fire resistance 

rating of the wall or floor-ceiling 

assembly penetrated; or 

(iii) Where the penetrating items are 

steel, ferrous or copper pipes, tubes, or 

conduits, the material used to fill the 

annular space must prevent the passage 

of flame and hot gasses sufficient to 

ignite cotton waste where subjected to 

ASTM E119 or UL 263 (incorporated by 

reference, see § 3280.4) time 

temperature fire conditions under a 

positive pressure differential of not less 

than 0.01 inch of water at the location 

of the through penetration for the time 

period equivalent to the fire resistance 

rating of the construction penetrated. 

(2) Membrane penetrations. 

Membrane penetrations must comply 

with paragraph (d)(1) of this section. 

Where walls are required to have a fire 

resistance rating, recessed fixtures must 

be installed so that the required fire 

resistance rating will not be reduced 

except as follows: 

(i) By membrane penetrations of fireresistant-rated walls, ceiling/floors and 

partitions by steel electrical boxes 

provided they do not exceed 16 square 

inches in area and the aggregate area of 

the openings through the membrane 

does not exceed 100 square inches in 

any 100 square feet of wall area. The 

annular space between the wall 

membrane and the box must not exceed 

1⁄8 inch. Such boxes on opposite sides 

of the wall must be separated by one of 

the following: 

(A) A horizontal distance of not less 

than 24 inches where the wall or 

partition is constructed with individual 

non-communicating stud cavities; or 

(B) A horizontal distance of not less 

than the depth of the wall cavity, where 

the wall cavity is filled with cellulose 

loose-fill or other loose-fill insulation; 

or 

(C) Solid fire blocking in accordance 

with § 3280.206; or 

(D) Protecting both boxes with listed 

putty pads; or 

(E) Other listed materials and 

methods. 

(ii) By membrane penetrations of 

listed electrical boxes of any materials 

provided that the boxes have been 

tested for use in fire resistance rated 

assemblies and are installed in 

accordance with the instructions 

included with the listing. The annular 

space between the wall membrane and 

the box must not exceed 1⁄8 inch unless 

otherwise noted. Such boxes on 

opposite sides of the wall must be 

separated by one of the following: 

(A) The horizontal distance specified 

in the listing of the electrical boxes; or 

(B) Sold fire blocking in accordance 

with § 3280.206; or 

(C) Protecting boxes with listed putty 

pads; or 

(D) Other listed materials and 

methods. 

(iii) By the annular space created by 

the penetration of a fire sprinkler 

provided that it is covered by a metal 

escutcheon plate. 

§ 3280.216 Draftstopping requirements for 

multi-dwelling unit manufactured homes. 

(a) When there is usable space both 

above and below the concealed space of 

a floor/ceiling assembly in a multidwelling unit manufactured home, 

draftstops must be installed so that the 

area of the concealed space does not 

exceed 1000 square feet. 

(b) Draftstopping must divide the 

concealed space into approximately 

equal areas. 

(c) Where the assembly is enclosed by 

a floor membrane above and a ceiling 

membrane below, draftstopping must be 

provided in the floor/ceiling assemblies: 

(1) When the ceiling is suspended 

under the floor framing; or 

(2) When the floor framing is 

constructed of truss type open-web or 

perforated members. 

(d) Draftstopping materials must not 

be less than 1⁄2 inch gypsum board, 3⁄8

inch wood structural panels, or other 

approved materials adequately 

supported. 

(e) Draftstopping must be installed 

parallel to the floor framing members. 

(f) The integrity of all draftstops must 

be maintained. 

■ 16. Amend § 3280.303 by revising 

paragraph (b) to read as follows: 

§ 3280.303 General requirements. 

* * * * * 

(b) Construction. All Construction 

methods must be in conformance with 

an approved quality assurance manual 

as provided by §§ 3282.203 and 

3282.361(c) and accepted engineering 

practices to ensure durable, livable, and 

safe housing. 

* * * * * 

■ 17. Revise and republish § 3280.304 to 

read as follows: 

§ 3280.304 Materials. 

(a) Dimension and board lumber must 

not exceed 19 percent moisture content 

at the time of installation, except that 

treated lumber used for exterior 

purposes may have a moisture content 

exceeding 19 percent. 

(b) The standards for some of the 

generally used materials and methods of 

construction that are listed in this 

paragraph are incorporated by reference 

(see § 3280.4). 

(1) Aluminum. 

(i) Aluminum Design Manual, 

Specifications and Guidelines for 

Aluminum Structures, Part 1–A 

(Aluminum Association). 

(ii) Aluminum Design Manual, 

Specifications and Guidelines for 

Aluminum Structures, Part 1–B 

(Aluminum Association). 

(2) Steel. 

(i) Specification for Structural Steel 

Buildings—AISC 360. 

(ii) North American Specification for 

the Design of Cold-Formed Steel 

Structural Members—AISI S100. 

(iii) Specification for the Design of 

Cold-Formed Stainless Steel Structural 

Members—SEI/ASCE 8. 

(iv) Standard Specifications Load 

Tables and Weight Tables for Steel Joists 

and Joist Girders, SJI. 

(v) Structural Applications of Steel 

Cables for Buildings—ASCE 19. 

(vi) Standard Specification for 

Strapping, Flat Steel and Seals—ASTM 

D3953. 

(3) Wood and Wood Products. 

(i) Basic Hardboard—ANSI/AHA 

A135.4. 

(ii) Prefinished Hardboard Paneling— 

ANSI/AHA A135.5. 

(iii) Hardboard Siding—ANSI/AHA 

A135.6. 

(iv) American National Standard for 

Hardwood and Decorative Plywood— 

ANSI/HPVA HP–1. 

(v) Structural Design Guide for 

Hardwood Plywood Wall Panels— 

HPVA Design Guide HP–SG. 

(vi) Standard for Wood Products— 

Structural Glued Laminated Timber— 

ANSI/AITC A190.1. 

(vii) Construction and Industrial 

Plywood (With Typical APA 

Trademarks)—PS 1. 

(viii) APA Design/Construction 

Guide, Residential and Commercial— 

APA E30–P. 

(ix) National Design Standard for 

Metal Plate Connected Wood Truss 

Construction, TPI–1. 

(x) APA Design & Fabrication of AllPlywood Beams—H815G. 

(xi) Panel Design Specification—APA 

D510C. 

(xii) Design & Fabrication of Glued 

Plywood-Lumber Beams—APA S812S. 

(xiii) Design & Fabrication of Plywood 

Curved Panels—APA–S811P. 

(xiv) Design & Fabrication of Plywood 

Sandwich Panels, APA U814J. 


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(xv) Performance Standard for WoodBased Structural Use Panels—NIST PS 

2. 

(xvi) Design & Fabrication of Plywood 

Stressed-Skin Panels,—APA–U813M. 

(xvii) National Design Specifications 

for Wood Construction, with 

Supplement, Design Values for Wood 

Construction, AWC NDS. 

(xviii) Wood Structural Design Data, 

1986 Edition with 1992 Revisions, 

AFPA. 

(xix) Span Tables for Joists & Rafters— 

AWC PS–20–70. 

(xx) Design Values for Joists & Rafters, 

AWC. 

(xxi) Particleboard—ANSI A208.1. 

(xxii) North American Fenestration 

Standard/Specification for Windows, 

Doors and Skylights—AAMA/WDMA/ 

CSA 101/I.S.2/A440. 

(xxiii) Standard Test Methods for 

Puncture and Stiffness of Paperboard, 

and Corrugated and Solid Fiberboard— 

ASTM D781. 

(xxiv) Standard Test Methods for 

Direct Moisture Content Measurement 

of Wood and Wood-Base Materials— 

ASTM D4442. 

(xxv) Standard Test Methods for Use 

and Calibration of Hand-Held Moisture 

Meters—ASTM D4444. 

(xxvi) Medium Density Fiberboard 

(MDF) For Interior Applications—ANSI 

A208.2. 

(xxvii) Standard Test Methods for Fire 

Tests of Building Construction and 

Materials—ASTM E119. 

(xxviii) Engineered Wood 

Construction Guide—APA E30V. 

(xxix) Structural Plywood (with 

Typical APA Trademarks), APA PS 1. 

(xxx) Plywood Design Specification, 

APA Y510. 

(4) Other. 

(i) Standard Specification for Gypsum 

Board—ASTM C1396/C1396M. 

(ii) [Reserved]. 

(5) Fasteners. 

(i) ICC–ES Evaluation Report, Power 

Driven Staples and Nails—ESR 1539. 

(ii) [Reserved] 

(6) Unclassified. 

(i) Minimum Design Loads for 

Buildings and Other Structures, ASCE/ 

SEI 7. 

(ii) Standard for Safety Glazing 

Materials Used in Buildings—Safety 

Performance Specifications and 

Methods of Test, ANSI Z97.1. 

(iii) Standard Specification for Rigid 

Poly (Vinyl Chloride) (PVC) Siding, 

ASTM D3679. 

(iv) Standard Practice for Installation 

of Rigid Poly (Vinyl Chloride) (PVC) 

Siding and Soffit, ASTM D4756. 

(v) Standard Specification for 

Polypropylene (PP) Siding, ASTM 

D7254. 

(c) Materials and methods of 

construction utilized in the design and 

construction of manufactured homes 

which are covered by the standards 

listed in this section, or any applicable 

portion thereof shall comply with these 

requirements. 

(d) Engineering analysis and testing 

methods contained in these references 

shall be utilized to judge conformance 

with accepted engineering practices 

required in § 3280.303(c). 

(e) Materials and methods of 

installation conforming to these 

standards shall be considered 

acceptable when installed in 

conformance with the requirements of 

this part. 

(f) Materials meeting the standards 

listed in this section (or the applicable 

portion thereof) are considered 

acceptable unless otherwise specified 

herein or unless substantial doubt exists 

as to conformance. 

(g) Wood products shall be identified 

as complying with the appropriate 

standards. 

■ 18. Amend § 3280.305 as follows: 

■ a. Revise paragraph (c)(1)(ii)(A); 

■ b. Designate the table immediately 

following paragraph (c)(1)(ii)(B) as table 

1 to paragraph (c)(1)(ii)(B) and revise its 

column headings; and 

■ c. Revise paragraphs (c)(2)(ii) and (iii); 

(j)(i) and (k)(2) 

The revisions read as follows: 

§ 3280.305 Structural design requirements. 

* * * * * 

(c) * * * 

(1) * * * 

(ii) * * * 

(A) The design wind pressures for 

Exposure C as specified in Minimum 

Design Loads for Buildings and Other 

Structures, ASCE/SEI 7 (incorporated by 

reference, see § 3280.4), for a fifty-year 

recurrence interval, and for an 

equivalent three-second gust wind 

speed of 140 mph, as specified for Wind 

Zone II, or 150 mph, as specified for 

Wind Zone III on the Basic Wind Zone 

Map for Manufactured Housing; or 

(B) * * * 

* * * * * 

(2) * * * 

(ii) Wind Zone II.....140 mph. The 

following areas are considered to be 

within Wind Zone II of the Basic Wind 

Zone Map: 

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(iii) Wind Zone III.....150 mph. 

The following areas are considered to be 

within Wind Zone III of the Basic Wind 

Zone Map: 

(A) States and Territories: The entire 

State of Hawaii, the coastal regions of 

Alaska (as determined by the 110 mph 

isotach on the ASCE/SEI 7 map), and all 

of the U.S. Territories of American 

Samoa, Guam, Northern Mariana 

Islands, Puerto Rico, and the United 

States Virgin Islands. 

(B) Local governments: The following 

local governments listed by State 

(counties, unless specified otherwise): 


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BILLING CODE 4210–67–C 

* * * * * 

(j) * * * 

(1) All welds must be made in 

accordance with the applicable 

provisions of the Specification for 

Structural Steel Buildings, AISC 360 

(incorporated by reference, see 

§ 3280.4); the North American 

Specification for the Design of ColdFormed Steel Structural Members, AISI 

S100 (incorporated by reference, see 

§ 3280.4); and the Specification for the 

Design of Cold-Formed Stainless Steel 

Structural Members, SEI/ASCE 8 

(incorporated by reference, see 

§ 3280.4). 

* * * * * 

(k) * * * 

(2) For roofs with slopes less than 

7:12 that contain an attic area or for 

portions of roofs with slopes 7:12 or 

greater that do meet the ceiling height/ 

living space requirements of the 

standards, the attic floor must be 

designed for a storage live load of 20 

pounds per square foot (psf). 

(i) Attic area as used within this 

section are those spaces where the 

maximum clear height between joist and 

rafters is 42 inches or greater or where 

there are two or more adjacent trusses 

with web configurations capable of 

accommodating an assumed rectangle 

42 inches high by 24 inches in width or 

greater, within the plane of the trusses. 

(ii) The live load need only be applied 

to those portions of the joist or truss 

bottom chords where all of the 

following criteria are met: 

(A) The attic area is accessible from 

an opening not less than 20 inches in 

width and 30 inches in length that is 

located where the clear height in the 

attic is a minimum of 30 inches; and, 

(B) The slope of the joists of the truss 

bottom chord are no greater than 2 

inches vertical to 12 inches horizontal; 

and, 

(C) Required insulation depth is less 

than the joist or truss bottom chord 

member depth. 

■ 19. Amend § 3280.307 by adding 

paragraph (f) to read as follows: 

§ 3280.307 Resistance to elements and 

use. 

* * * * * 

(f) The exterior wall envelope must be 

designed and constructed in a manner 

that prevents the accumulation of water 

within the wall assembly by providing 

a Water Resistive Barrier (WRB) behind 

the exterior cladding and a means of 

draining water that enters the assembly. 

■ 20. Add § 3280.309 to subpart D to 

read as follows: 

§ 3280.309 Standard for vinyl siding and 

polypropylene siding used in manufactured 

homes. 

(a) Scope. This section establishes the 

requirements for vinyl siding and 

polypropylene siding used in 

manufactured homes. 

(b) Standards—(1) Vinyl siding. All 

vinyl siding must comply with the 

requirements of ASTM D3679 

(incorporated by reference, see § 3280.4) 

and must be certified or listed and 

labeled as conforming to those 

requirements. 

(2) Polypropylene siding. All 

polypropylene siding must comply with 

the requirements of ASTM D7254 

(incorporated by reference, see § 3280.4) 

and must be certified or listed and 

labeled as conforming to those 

requirements. 

(c) Installation. Vinyl siding and soffit 

installation must be installed in 

accordance with the manufacturer’s 

installation instructions. Vinyl siding 

and soffit installation must be based on 

ASTM D4756 (incorporated by 

reference, see § 3280.4). 

■ 21. Amend § 3280.403 as follows: 

■ a. Revise paragraph (b)(1) and the first 

sentence of the introductory text of 

paragraph (b)(2); 

■ b. Revise the introductory text of 

paragraph (d)(1); and 

■ c. Revise paragraph (e). 

The revisions read as follows: 

§ 3280.403 Requirements for windows, 

sliding glass doors, and skylights. 

* * * * * 

(b)(1) Standard. All primary windows 

and sliding glass doors must comply 

with AAMA 1701.2 (incorporated by 

reference, see § 3280.4), or AAMA/ 

WDMA/CSA 101/I.S.2/A440 

(incorporated by reference, see 

§ 3280.4), except the exterior and 

interior pressure tests must be 

conducted at the minimum design wind 

loads required for components in 

§ 3280.305(c)(1). 

(2) All skylights must comply with 

AAMA/WDMA/CSA 101/I.S.2/A440 

(incorporated by reference, see 

§ 3280.4). * * * 

* * * * * 

(d) * * * (1) Safety glazing materials, 

where used shall meet ANSI Z97.1 

(incorporated by reference, see 

§ 3280.4). 

* * * * * 

(e) Certification. All primary windows 

and sliding glass doors to be installed in 

manufactured homes must be certified 

as complying with AAMA 1701.2 

(incorporated by reference, see § 3280.4) 

or AAMA/WDMA/CSA 101/I.S.2/A440 

(incorporated by reference, see 

§ 3280.4). This certification must be 

based on tests conducted at the design 

wind loads specified in § 3280.305(c)(1). 

(1) All such windows and doors must 

show evidence of certification by 

affixing a quality certification label to 

the product from an independent 

product certification body accredited to 

ISO/IEC 17065 (incorporated by 

reference, see § 3280.4). 

(2) In determining certifiability of the 

products, an independent quality 

assurance agency must conduct preproduction specimen tests in 

accordance with AAMA 1702.2 

(incorporated by reference see § 3280.4) 

or AAMA/WDMA/CSA 101/I.S.2/A440 

(incorporated by reference, see 

§ 3280.4). Further, such agency must 

inspect the product manufacturer’s 

facility at least twice per year. 

(3) All skylights installed in 

manufactured homes must be certified 

as complying with AAMA 1701.2 

(incorporated by reference see § 3280.4) 

or AAMA/WDMA/CSA 101/I.S.2/A440 

(incorporated by reference, see 3280.4). 

* * * * * 

■ 22. Amend § 3280.404 by revising 

paragraphs (b) and (e) to read as follows: 

§ 3280.404 Standard for egress windows 

and devices for use in manufactured 

homes. 

* * * * * 

(b) Performance. Egress windows 

including auxiliary frame and seals, if 

any, must meet all requirements of 

AAMA 1701.2 (incorporated by 

reference, see § 3280.4) and AAMA 1704 

(incorporated by reference, see § 3280.4) 

or AAMA/WDMA/CSA 101/I.S.2/A440 

(incorporated by reference, see 

§ 3280.4). 

(1) Loading. Exterior and interior 

pressure tests for components and 

cladding must be conducted meeting or 

exceeding the minimum design wind 

loads required by § 3280.305(c)(1). 

(2) Dimensions. All egress systems 

must have a minimum clear horizontal 

dimension of 20 inches and a minimum 

clear vertical dimension of 24 inches 

and have a clear opening of at least 5 ft2. 

* * * * * 

(e) Certification of Egress Windows 

and devices. (1) Egress windows and 

devices must be listed in accordance 

with the procedures and requirements 

of AAMA 1701.2 (incorporated by 

reference, see § 3280.4) and AAMA 1704 

(incorporated by reference, see § 3280.4) 

or AAMA/WDMA/CSA 101/I.S.2/A440 

(incorporated by reference, see 

§ 3280.4). This certification must be 

based on tests conducted meeting or 

exceeding the minimum design wind 

loads specified in § 3280.305(c)(1). 

(2) All such windows and devices 

must show evidence of certification by 


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affixing a quality certification label to 

the product from an independent 

product certification body accredited to 

ISO/IEC 17065 (incorporated by 

reference, see § 3280.4). 

* * * * * 

■ 23. Amend § 3280.405 by revising 

paragraphs (b), (c), and (e) to read as 

follows: 

§ 3280.405 Standard for swinging exterior 

passage doors for use in manufactured 

homes. 

* * * * * 

(b) Performance requirements. The 

design and construction of exterior door 

units must meet all requirements of 

AAMA 1702.2 (incorporated by 

reference, see § 3280.4) or AAMA/ 

WDMA/CSA 101/I.S.2/A440 

(incorporated by reference, see 

§ 3280.4). 

(c) Materials and methods. Any 

material or method of construction must 

conform to the performance 

requirements as outlined in paragraph 

(b) of this section. Plywood must be 

exterior type and preservative treated in 

accordance with WDMA I.S. 4 

(incorporated by reference, see 

§ 3280.4). 

* * * * * 

(e) Certification. All swinging exterior 

doors to be installed in manufactured 

homes must be certified as complying 

with AAMA 1702 (incorporated by 

reference, see § 3280.4) or AAMA/ 

WDMA/CSA 101/I.S.2/A440 

(incorporated by reference, see 

§ 3280.4). 

(1) All such doors must show 

evidence of certification by affixing a 

quality certification label to the product 

from an independent product 

certification body accredited to ISO/IEC 

17065 (incorporated by reference, see 

§ 3280.4). 

(2) In determining certifiability of the 

products, an independent quality 

assurance agency must conduct a preproduction specimen test in accordance 

with AAMA 1702.2 (incorporated by 

reference, see § 3280.4) or AAMA/ 

WDMA/CSA 101/I.S.2/A440 

(incorporated by reference, see 

§ 3280.4). 

* * * * * 

■ 24. Amend § 3280.504 by revising 

paragraphs (a)(1) and (c) to read as 

follows: 

§ 3280.504 Condensation control and 

installation of vapor retarders. 

(a) * * * (1) In Uo Value Zones 2 and 

3, ceilings must have a vapor retarder 

with a permeance of not greater than 1 

perm as measured by ASTM E96/E96M 

(incorporated by reference, see 

§ 3280.4), installed on the living space 

side of the roof cavity. 

* * * * * 

(c) Liquid applied vapor retarders. 

Each liquid applied vapor retarder must 

be tested by a nationally recognized 

testing agency for use on the specific 

substrate to which it is applied. The test 

report must include the perm rating, as 

measured by ASTM E96/E96M 

(incorporated by reference, see 

§ 3280.4), and associated application 

rate for each specific substrate. 

* * * * * 

■ 25. Amend § 3280.510 by revising the 

first sentence of the introductory text to 

read as follows: 

§ 3280.510 Heat loss certificate. 

The manufactured home 

manufacturer must permanently affix 

the following ‘‘Certificate’’ to an interior 

surface of each dwelling unit that is 

readily visible to the occupant. * * * 

* * * * * 

■ 26. Amend § 3280.511 by revising the 

first sentence of the introductory text of 

paragraph (a) and paragraph (b) to read 

as follows: 

§ 3280.511 Comfort cooling certificate and 

information. 

(a) The manufactured home 

manufacturer must permanently affix a 

‘‘Comfort Cooling Certificate’’ to an 

interior surface of each dwelling unit 

that is readily visible to the occupant. 

* * * 

* * * * * 

(b) For each home designated as 

suitable for central air conditioning the 

manufacturer shall provide the 

maximum central manufactured home 

air conditioning capacity certified in 

accordance with the ANSI/AHRI 

Standard 210/240 with Addenda 1 and 

2 (incorporated by reference, see 

§ 3280.4) and in accordance with 

§ 3280.715(a)(3). If the capacity 

information provided is based on 

entrances to the air supply duct at other 

than the furnace plenum, the 

manufacturer shall indicate the correct 

supply air entrance and return air exit 

locations. 

* * * * * 

■ 27. Amend § 3280.603 by revising 

paragraph (b)(4)(ii) to read as follows: 

§ 3280.603 General requirements. 

* * * * * 

(b) * * * 

(4) * * * 

(ii) A statement in the installation 

instructions required by § 3280.306(b), 

stating that if the heat tape or pipe 

heating cable is used, it must be listed 

or certified for its intended purpose. 

* * * * * 

■ 28. Revise and republish § 3280.604 to 

read as follows 

§ 3280.604 Materials. 

(a) Minimum standards. Materials, 

devices, fixtures, fittings, equipment, 

appliances, appurtenances and 

accessories shall conform to one of the 

standards listed in this section (all 

incorporated by reference, see § 3280.4) 

and be free from defects. Where an 

appropriate standard is not listed in this 

section or a standard not listed is 

preferred, the item may be used if it is 

listed. A listing is also required when so 

specified in other sections of this 

subpart. 

(b) Where more than one standard is 

referenced for a particular material or 

component, compliance with only one 

of those standards is acceptable. 

Exceptions: 

(1) When one of the reference 

standards requires evaluation of 

chemical, toxicity or odor properties 

which are not included in the other 

standard, then conformance to the 

applicable requirements of each 

standard shall be demonstrated; 

(2) When a plastic material or 

component is not covered by the 

standards in this section, it must be 

certified as non-toxic in accordance 

with ANSI/NSF 61, Drinking water 

system components—Health effects 

(incorporated by reference, see 

§ 3280.4). 

(c) Standards for some of the generally 

used materials and methods of 

construction are listed as following: 

(1) Ferrous Pipe and Fittings. (i) Gray 

Iron Threaded Fittings—ANSI/ASME 

B16.4. 

(ii) Malleable Iron Threaded 

Fittings—ANSI/ASME B16.3. 

(iii) Material and Property Standard 

for Special Cast Iron Fittings—IAPMO 

PS 5. 

(iv) Welding and Seamless Wrought 

Steel Pipe—ANSI/ASME B36.10. 

(v) Standard Specification for Pipe, 

Steel, Black and Hot-Dipped, ZincCoated, Welded and Seamless—ASTM 

A53/A53M. 

(vi) Pipe Threads, General Purpose 

(Inch)—ANSI/ASME B1.20.1. 

(vii) Standard Specification for Cast 

Iron Soil Pipe and Fittings—ASTM A74. 

(viii) Standard Specification for 

Hubless Cast Iron Soil Pipe and Fittings 

for Sanitary and Storm Drain, Waste, 

and Vent Piping Applications—CISPI– 

301. 

(2) Nonferrous Pipe and Fittings. (i) 

Standard Specification for Seamless 

Copper Pipe, Standard Sizes—ASTM 

B42. 

(ii) Standard Specification for General 

Requirements for Wrought Seamless 


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Copper and Copper-Alloy Tube—ASTM 

B251. 

(iii) Standard Specification for 

Seamless Copper Water Tube—ASTM 

B88. 

(iv) Standard Specification for Copper 

Drainage Tube (DWV)—ASTM B306. 

(v) Wrought Copper and Copper Alloy 

Solder-Joint Pressure Fitting—ASME/ 

ANSI B16.22. 

(vi) Wrought Copper and Wrought 

Copper Alloy Solder-Joint Drainage 

Fittings-DWV—ASME/ANSI B16.29. 

(vii) Cast Copper Alloy Solder-Joint 

Pressure Fittings—ANSI B16.18. 

(viii) Cast Copper Alloy Solder-Joint 

Drainage Fittings-DWV—ASME B16.23. 

(ix) Cast Copper Alloy Fittings for 

Flared Copper Tubes—ASME/ANSI 

B16.26. 

(x) Standard Specification for 

Seamless Red Brass Pipe, Standard 

Sizes—ASTM B43. 

(xi) Cast Bronze Threaded Fittings, 

Classes 125 and 250—ANSI/ASME 

B16.15. 

(3) Plastic Pipe and Fittings. (i) 

Standard Specification AcrylonitrileButadiene-Styrene (ABS) Schedule 40 

Plastic Drain, Waste, and Vent Pipe and 

Fittings—ASTM D2661. 

(ii) Standard Specification for Poly 

(Vinyl Chloride) (PVC) Plastic Drain, 

Waste, and Vent Pipe and Fittings— 

ASTM D2665. 

(iii) Standard Specification for Drain, 

Waste, and Vent (DWV) Plastic Fittings 

Patterns—ASTM D3311. 

(iv) Standard Specification for 

Acrylonitrile-Butadiene-Styrene (ABS) 

Schedule 40, Plastic Drain, Waste, and 

Vent Pipe with a Cellular Core—ASTM 

F628. 

(v) Standard Specification for 

Chlorinated Poly (Vinyl Chloride) 

(CPVC) Plastic Hot- and Cold-Water 

Distribution Systems—ASTM D2846. 

(vi) Standard Specification for 

Polybutylene (PB) Plastic Hot- and ColdWater Distribution Systems—ASTM 

D3309. 

(vii) Plastic Piping Components and 

Related Materials—ANSI/NSF 14. 

(viii) Standard Specification for 

Crosslinked Polyethylene (PEX) 

Tubing—ASTM F876. 

(ix) Standard Specification for 

Crosslinked Polyethylene (PEX) Plastic 

Hot- and Cold-Water Distribution 

Systems—ASTM F877. 

(4) Miscellaneous. (i) Standard 

Specification for Rubber Gaskets for 

Cast Iron Soil Pipe and Fittings, ASTM 

C564. 

(ii) Backflow Valves—ANSI 

A112.14.1. 

(iii) Plumbing Fixture Setting 

Compound—TTP 1536A. 

(iv) Material and Property Standard 

for Cast Brass and Tubing P-Traps— 

IAPMO PS 2. 

(v) Relief Valves for Hot Water Supply 

Systems, ANSI Z21.22. 

(vi) Standard Specification for Solvent 

Cement for Acrylonitrile-ButadieneStyrene (ABS) Plastic Pipe and 

Fittings—ASTM D2235. 

(vii) Standard Specification for 

Solvent Cements for Poly (Vinyl 

Chloride) (PVC) Plastic Piping 

Systems—ASTM D2564. 

(viii) Specification for Neoprene 

Rubber Gaskets for HUB and Spigot Cast 

Iron Soil Pipe and Fittings—CISPI–HSN. 

(ix) Plumbing System Components for 

Manufactured Homes and Recreational 

Vehicles—ANSI/NSF 24. 

(x) Material and Property Standard for 

Diversion Tees and Twin Waste 

Elbow—IAPMO PS 9. 

(xi) Material and Property Standard 

for Flexible Metallic Water 

Connectors—IAPMO PS 14. 

(xii) Material and Property Standard 

for Dishwasher Drain Airgaps—IAPMO 

PS 23. 

(xiii) Material and Property Standards 

for Backflow Prevention Assemblies— 

IAPMO PS 31. 

(xiv) Performance Requirements for 

Air Admittance Valves for Plumbing 

Drainage Systems, Fixture and Branch 

Devices—ASSE Standard #1051. 

(xv) Drinking Water System 

Components-Health Effects—ANSI/NSF 

61. 

(5) Plumbing Fixtures. (i) Plumbing 

Fixtures (General Specifications)—FS 

WW–P–541E/GEN. 

(ii) Vitreous China Plumbing 

Fixtures—ANSI/ASME A112.19.2(M). 

(iii) Enameled Cast Iron Plumbing 

Fixtures—ANSI/ASME A112.19.1M. 

(iv) Porcelain Enameled Formed Steel 

Plumbing Fixtures—ANSI/ASME 

A112.19.4(M). 

(v) Plastic Bathtub Units with 

Addenda Z124.1a and Z124.16—ANSI 

Z124.1. 

(vi) Standard for Porcelain Enameled 

Formed Steel Plumbing Fixtures— 

IAPMO TSC 22. 

(vii) Plastic Shower Receptors and 

Shower Stalls with Addendum 

Z124.2a—ANSI Z124.2. 

(viii) Stainless Steel Plumbing 

Fixtures (Designed for Residential 

Use)—ANSI/ASME A112.19.3M. 

(ix) Material and Property Standard 

for Drains for Prefabricated and Precast 

Showers—IAPMO PS 4. 

(x) Plastic Lavatories with Addendum 

Z124.3a—ANSI Z124.3. 

(xi) Standard for Safety Glazing 

Materials used in Buildings—Safety 

Performance Specifications and 

Methods of Test, ANSI Z97.1. 

(xii) Water Heater Relief Valve Drain 

Tubes—ASME A112.4.1. 

(xiii) Flexible Water Connectors— 

ASME A112.18.6. 

(xiv) Performance Requirements for 

Backflow Protection Devices and 

Systems in Plumbing Fixture Fittings— 

ASME A112.18.3M. 

(xv) Non-Vitreous Ceramic Plumbing 

Fixtures—ASME A112.19.9M. 

(xvi) Dual Flush Devices for Water 

Closets—ASME A119.19.10. 

(xvii) Deck Mounted Bath/Shower 

Transfer Valves with Integral Backflow 

Protection—ASME A112.18.7. 

(xviii) Plastic Fittings for Connecting 

Water Closets to the Sanitary Drainage 

System—ASME A112.4.3. 

(xix) Hydraulic Performance 

Requirements for Water Closets and 

Urinals, ASME A112.19.6. 

(xx) Plumbing Fixture Fittings— 

ASME/ANSI A112.18.1M. 

(xxi) Trim for Water Closet, Bowls, 

Tanks, and Urinals—ANSI A112.19.5. 

(xxii) Plastic Water Closets, Bowls, 

and Tanks with Addenda Z124.4a— 

ANSI Z124.4. 

(xxiii) Plastic Toilet (Water Closets) 

Seats—ANSI Z124.5. 

(xxiv) Prefabricated Plastic Spa 

Shells—ANSI Z124.7. 

(xxv) Whirlpool Bathtub 

Appliances—ASME/ANSI A112.19.7M. 

(xxvi) Plastic Urinal Fixtures—ANSI 

Z–124.9. 

(xxvii) Performance Requirements for 

Individual Thermostatic Pressure 

Balancing and Combination Control for 

Bathing Facilities—ASSE 1016. 

(xxviii) Performance Requirements for 

Pressurized Flushing Devices 

(Flushometers) for Plumbing Fixtures— 

ASSE 1037. 

(xxix) Performance Requirements for 

Water Closet Flush Tank Fill Valves 

(Ballcocks)—ASSE 1002. 

(xxx) Performance Requirements for 

Hand-held Showers—ASSE 1014. 

(xxxi) Hydrants for Utility and 

Maintenance Use—ANSI/ASME 

A112.21.3M. 

(xxxii) Performance Requirements for 

Home Laundry Equipment—ASSE 1007. 

(xxxiii) Performance Requirements for 

Hot Water Dispensers, Household 

Storage Type Electrical—ASSE 1023. 

(xxxiv) Plumbing Requirements for 

Residential Use (Household) 

Dishwashers—ASSE 1006. 

(xxxv) Performance Requirements for 

Household Food Waste Disposer 

Units—ASSE 1008. 

(xxxvi) Performance Requirements for 

Temperature Activated Mixing Valves 

for Primary Domestic Use—ASSE 1017. 

(xxxv) Water Hammer Arresters— 

ANSI A112.26.1. 

(xxxvi) Suction Fittings for Use in 

Swimming Pools, Wading Pools, Spas, 


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Hot Tubs, and Whirlpool Bathtub 

Appliances—ASME/ANSI A112.19.8M. 

(xxxvii) Air Gaps in Plumbing 

Systems—ASME A112.1.2. 

(xxxviii) Performance Requirements 

for Diverters for Plumbing Faucets with 

Hose Spray, Anti-Siphon Type, 

Residential Applications—ASSE 1025. 

(xxxix) Performance Requirements for 

Pipe Applied Atmospheric Type 

Vacuum Breakers—ASSE 1001. 

(xl) Performance Requirements for 

Hose Connection Vacuum Breakers— 

ASSE 1011–1981. 

(xli) Performance Requirements for 

Wall Hydrants, Frost Proof Automatic 

Draining, Anti-Backflow Types—ANSI/ 

ASSE 1019. 

(xlii) Performance Requirements for 

Automatic Compensating Values for 

Individual Shower and Tub/Shower 

Combinations—ASSE 1016. 

(xliii) Performance Requirements for 

Water Temperature Limiting Devices— 

ASSE 1070–2004. 

■ 29. Amend § 3280.607 by revising 

paragraphs (b)(3) and (c)(6)(iv) to read as 

follows: 

§ 3280.607 Plumbing Fixtures. 

* * * * * 

(b) * * * 

(3) Shower compartment. (i) Each 

compartment stall must be provided 

with an approved watertight receptor 

with sides and back extending with 

sides and back extending at least 1 inch 

above the finished dam or threshold. 

Except as provided by paragraph 

(b)(3)(v) of this section, the depth of a 

shower receptor must not be less than 

2 inches or more than 9 inches 

measured from the top of the finished 

dam or threshold to the top of the drain. 

The wall area must be constructed of 

smooth, non-corrosive, and nonabsorbent materials to a height not less 

than 6 feet above the bathroom floor 

level. Such walls must form a watertight 

joint with each other and with the 

bathtub, receptor or shower floor. The 

floor or compartment must slope 

uniformly to the drain not less than onefourth nor more than 1⁄2 inch per foot. 

(ii) The joint around the drain 

connection shall be made watertight by 

a flange, clamping ring, or other 

approved listed means. 

(iii) Shower doors and tub and shower 

enclosures must be constructed so as to 

be waterproof and, if glazed, glazing 

must comply with ANSI Z97.1 

(incorporated by reference, see § 3280.4) 

(iv) Prefabricated plumbing fixtures 

shall be approved or listed. 

(v) Thresholds in roll-in-type shower 

compartments must be 1⁄2 inch 

maximum in height in accordance with 

paragraph (vi) of this section. In transfer 

type shower compartments, thresholds 

1⁄2 inch maximum in height must be 

beveled, rounded, or be vertical. 

(vi) Changes in level of 1⁄4 inch 

maximum in height must be permitted 

to be vertical. Changes in level greater 

than 1⁄4 inch in height and not more 

than 1⁄2 inch maximum in height must 

be beveled with a slope not steeper than 

1:2. 

(vii) Shower and tub-shower 

combination valves must be balanced 

pressure, thermostatic, or combination 

mixing valves that conform to the 

requirements of ASSE 1016 

(incorporated by reference, see 

§ 3280.4). Such valves must be equipped 

with handle position stops that are 

adjustable in accordance with the valve 

manufacturer’s instructions and to a 

maximum setting of 120 °F. Hot water 

supplied to bathtubs and whirlpool 

bathtubs are to be limited to a 

temperature of not greater than 120 °F 

by a water temperature limiting device 

that conforms to the requirements of 

ASSE 1070 (incorporated by reference, 

see § 3280.4). 

* * * * * 

(c) * * * 

(6) * * * 

(iv) Electrical. Wiring must comply 

with Articles 680.70, 680.71, and 680.72 

of NFPA 70 (incorporated by reference, 

see § 3280.4). 

■ 30. Amend § 3280.609 by revising 

paragraph (a)(2) to read as follows: 

§ 3280.609 Water distribution systems. 

(a) * * * 

(2) Hot water supply. Each dwelling 

unit equipped with a kitchen sink, and 

bathtub and/or shower must be 

provided with a hot water supply 

system including a listed water heater. 

* * * * * 

■ 31. Amend § 3280.611 by revising 

paragraph (c)(5) to read as follows: 

§ 3280.611 Vents and venting. 

* * * * * 

(c) * * * 

(5) The distance of the fixture trap 

from the vent must not exceed the 

values given in the following table: 

* * * * * 

■ 32. Amend § 3280.702 by revising the 

definitions for ‘‘Class 0 air ducts and air 

connectors’’ and ‘‘Class 1 air ducts and 

air connectors,’’ to read as follows: 

§ 3280.702 Definitions. 

* * * * * 

Class 0 air ducts and air connectors 

means air ducts and air connectors 

having a fire hazard classification of 

zero when tested in accordance with UL 

181 (incorporated by reference, see 

§ 3280.4). 

Class 1 air ducts and air connectors 

means air ducts and air connectors 

having a flame spread rating of not over 

25 without evidence of continued 


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progressive combustion and a smoke 

developed rating of not over 50 when 

tested in accordance with UL 181 

(incorporated by reference, see 

§ 3280.4). 

* * * * * 

■ 33. Revise § 3280.703 to read as 

follows: 

§ 3280.703 Minimum standards. 

Heating, cooling, and fuel burning 

appliances and systems in 

manufactured homes shall be free of 

defects and shall conform to applicable 

standards (incorporated by reference, 

see § 3280.4) in this section unless 

otherwise specified in this part. When 

more than one standard is referenced, 

compliance with any one such standard 

shall meet the requirements of this part. 

(a) Appliances. (1) Heating and 

Cooling Equipment—UL 1995. 

(2) Liquid Fuel Burning Heating 

Appliances for Manufactured Homes & 

Recreational Vehicles—UL 307A. 

(3) Fixed and Location-Dedicated 

Electric Room Heaters—UL 2021. 

(4) Electric Baseboard Heating 

Equipment—UL 1042. 

(5) Electric Central Air Heating 

Equipment—UL 1096. 

(6) Gas Burning Heating Appliances 

for Manufactured Homes & Recreational 

Vehicles—UL 307B. 

(7) Gas Clothes Dryers Volume 1, 

Type 1 Clothes Dryers—ANSI Z21.5.1. 

(8) Gas-fired Water Heaters, Volume 3, 

Storage Water Heaters with Input 

Ratings Above 75,000 BTU per Hour, 

Circulating and Instantaneous—ANSI 

Z21.10.3. 

(9) Gas Fired, Heat Activated Air 

Conditioning and Heat Pump 

Appliances—ANSI Z21.40.1. 

(10) Gas Fired Central Furnaces 

(Except Direct Vent Systems)—ANSI 

Z21.47. 

(11) Connectors for Outdoor Gas 

Appliances and Manufactured Homes— 

ANSI Z21.75 

(12) Decorative Gas Appliances for 

Installation in Solid Fuel Burning 

Fireplaces—RADCO DS–010. 

(13) Household Cooking Gas 

Appliances—ANSI Z21.1. 

(14) Refrigerators Using Gas Fuel— 

ANSI Z21.19. 

(15) Gas Water Heaters, Volume 1, 

Storage Water Heaters with Input 

Ratings of 75,000 BTU per hour or 

Less—ANSI Z21.10.1. 

(16) Household Electric Storage Tank 

Water Heaters—UL 174. 

(17) Standard for Household and 

Similar Electrical Appliances—Safety, 

Part 2–34: Particular Requirements for 

Motor-Compressors—UL 60335–2–34. 

(18) Smoke Detectors for Fire 

Protective Signaling Systems—UL 268. 

(19) Standard for Single and Multiple 

Station Carbon Monoxide Alarms—UL 

2034. 

(20) Standard for Electric Heating 

Appliances—UL 499. 

(b) Ferrous Pipe and Fittings. (1) 

Standard Specification for Pipe, Steel, 

Black and Hot-Dipped, Zinc-Coated, 

Welded and Seamless—ASTM A53/ 

A53M. 

(2) Standard Specification for ElectricResistance-Welded Coiled Steel Tubing 

for Gas and Fuel Oil Lines—ASTM 

A539. 

(3) Pipe Threads, General Purpose 

(Inch)—ANSI/ASME B1.20.1. 

(4) Welding and Seamless Wrought 

Steel Pipe—ANSI/ASME B36.10. 

(c) Nonferrous Pipe, Tubing, and 

Fittings. (1) Standard Specification for 

Seamless Copper Water Tube—ASTM 

B88. 

(2) Standard Specification for 

Seamless Copper Tube for Air 

Conditioning and Refrigeration Field 

Service—ASTM B280. 

(3) Connectors for Gas Appliances— 

ANSI Z21.24. 

(4) Manually Operated Gas Valves for 

Appliances, Appliance Connector 

Valves and Hose End Valves—ANSI 

Z21.15. 

(5) Standard for Gas Supply 

Connectors for Manufactured Homes— 

IAPMO TSC 9. 

(6) Standard Specification for General 

Requirements for Wrought Seamless 

Copper and Copper-Alloy Tube—ASTM 

B251. 

(7) Standard Specification for 

Seamless Copper Pipe, Standard Sizes— 

ASTM B42. 

(d) Miscellaneous. (1) Factory-Made 

Air Ducts & Air Connectors—UL 181. 

(2) Closure Systems for use with Rigid 

Air Ducts and Air Connectors—UL 

181A. 

(3) Standard for Safety Closure 

Systems for use with Flexible Air Ducts 

and Air Connectors—UL 181B. 

(4) Standard for Safety Glazing 

Materials used in Buildings—Safety 

Performance Specifications and 

Methods of Test—ANSI Z97.1. 

(5) Tube Fittings for Flammable and 

Combustible Fluids, Refrigeration 

Service, and Marine Use—UL 109. 

(6) Pigtails & Flexible Hose 

Connectors for LP-Gas—UL 569. 

(7) Roof Jacks for Manufactured 

Homes and Recreational Vehicles, 

Eighth Edition—UL 311. 

(8) Relief Valves for Hot Water Supply 

Systems—ANSI Z21.22. 

(9) Automatic Gas Ignition Systems 

and Components—ANSI Z21.20. 

(10) Automatic Valves for Gas 

Appliances—ANSI Z21.21. 

(11) Gas Appliance Thermostats— 

ANSI Z21.23 with ANSI Z21.23a 

(Addenda 1) and ANSI 21.23b (Addenda 

2). 

(12) Gas Vents—UL 441. 

(13) Installation of Oil-Burning 

Equipment—NFPA 31. 

(14) National Fuel Gas Code—NFPA 

54/ANSI Z223.1. 

(15) Warm Air Heating and Air 

Conditioning Systems—NFPA 90B. 

(16) Standard for the Storage and 

Handling of Liquefied Petroleum Gas— 

NFPA 58. 

(17) Flares for Tubing—SAE J533b. 

(18) Chimneys, Factory Built Type & 

Building Heating Appliance—UL 103. 

(19) Factory-Built Fireplaces—UL 

127. 

(20) Solid-Fuel Type Room Heaters— 

UL 1482. 

(21) Fireplace Stoves—UL 737. 

(22) Unitary Air-Conditioning and 

Air-Source Heat Pump Equipment— 

ANSI/AHRI Standard 210/240 with 

Addenda 1 and 2. 

(23) Ventilation and Acceptable 

Indoor Air Quality in Low-Rise 

Residential Buildings—ANSI/ASHRAE 

62.2. 

(24) Requirements for Gas Connectors 

for Connection of Fixed Appliances for 

Outdoor Installation, Park Trailers, and 

Manufactured (Mobile) Homes to the 

Gas Supply—AGA No. 3. 

■ 34. Amend § 3280.705 as follows: 

■ a. Revise paragraphs (b)(1), (3), and 

(5); 

■ b. Revise paragraph (c)(2); 

■ c. Revise paragraphs (e) and (f); 

■ d. Revise the first sentence of 

paragraph (j); and, 

■ e. Revise paragraphs (l)(1), (2)(ii), and 

(3); 

The revisions read as follows: 

§ 3280.705 Gas piping systems. 

* * * * * 

(b) * * * 

(1) Steel or wrought-iron pipe shall 

comply with ASME B36.10 

(incorporated by reference, see 

§ 3280.4). Threaded brass pipe in iron 

pipe sizes may be used. Threaded brass 

pipe shall comply with ASTM B43. 

(incorporated by reference, see 

§ 3280.4). 

* * * * * 

(3) Copper tubing must be annealed 

type, Grade K or L, conforming to ASTM 

B88 (incorporated by reference, see 

§ 3280.4), or must comply with the 

ASTM B280 (incorporated by reference, 

see § 3280.4). Copper tubing must be 

internally tinned. 

* * * * * 

(5) Corrugated stainless steel tubing 

(CSST) systems must be listed and 

installed in accordance with ANSI LC 1 

(incorporated by reference, see 


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§ 3280.4), and the requirements of this 

section. 

(c) * * * 

(2) The connection(s) between units 

must be made with a connector(s) listed 

for exterior use or direct plumbing sized 

in accordance with paragraph (d) of this 

section. A shutoff valve of the nondisplaceable rotor type conforming to 

ANSI Z21.15 (incorporated by reference, 

see § 3280.4), suitable for outdoor use 

must be installed at each crossover 

point upstream of the connection. 

* * * * * 

(e) Joints for gas pipe. All pipe joints 

in the piping system, unless welded or 

brazed, shall be threaded joints that 

comply with ANSI/ASME B1.20.1 

(incorporated by reference, see 

§ 3280.4). Right and left nipples or 

couplings shall not be used. Unions, if 

used, shall be of ground joint type. The 

material used for welding or brazing 

pipe connections shall have a melting 

temperature in excess of 1,000 0F. 

(f) Joints for tubing. (1) Tubing joints 

shall be made with either a single or a 

double flare of 45 degrees in accordance 

with SAE J533b (incorporated by 

reference, see § 3280.4) or with other 

listed vibration-resistant fittings, or 

joints may be brazed with material 

having a melting point exceeding 

1,000 °F. Metallic ball sleeve 

compression-type tubing fittings shall 

not be used. 

(2) Steel tubing joints shall be made 

with a double-flare in accordance with 

SAE J533b (incorporated by reference, 

see § 3280.4). 

* * * * * 

(j) * * * When gas appliances are 

installed, at least one gas supply 

connection must be provided on each 

dwelling unit. * * * 

* * * * * 

(l) * * *(1) General. A listed LP-Gas 

flexible connection conforming to UL 

569 (incorporated by reference, see 

§ 3280.4), or equal, must be supplied 

when LP-Gas cylinder(s) and 

regulator(s) are supplied. 

(2) * * * 

(ii) The outlet must be provided with 

an approved quick-disconnect device, 

which must be designed to provide a 

positive seal on the supply side of the 

gas system when the appliance is 

disconnected. A shutoff valve of the 

non-displaceable rotor type conforming 

to ANSI Z21.15 (incorporated by 

reference, see § 3280.4), must be 

installed immediately upstream of the 

quick-disconnect device. The complete 

device must be provided as part of the 

original installation. 

* * * * * 

(3) Valves. A shutoff valve must be 

installed in the fuel piping at each 

appliance inside the manufactured 

home structure, upstream of the union 

or connector in addition to any valve on 

the appliance and so arranged to be 

accessible to permit servicing of the 

appliance and removal of its 

components. The shutoff valve must be 

located within 6 feet of any cooking 

appliance and within 3 feet of any other 

appliance. A shutoff valve may serve 

more than one appliance if located as 

required by this paragraph (l)(3). The 

shutoff valve must be of the nondisplaceable rotor type and conform to 

ANSI Z21.15 (incorporated by reference, 

see § 3280.4). 

* * * * * 

■ 35. Amend § 3280.706 by revising 

paragraphs (b)(3) and (d) to read as 

follows: 

§ 3280.706 Oil piping systems. 

* * * * * 

(b) * * * 

(3) Copper tubing must be annealed 

type, Grade K or L conforming to ASTM 

B88 (incorporated by reference, see 

§ 3280.4), or shall comply with ASTM 

B280 (incorporated by reference, see 

§ 3280.4). 

* * * * * 

(d) Joints for oil piping. All pipe joints 

in the piping system, unless welded or 

brazed, shall be threaded joints which 

comply with ANSI/ASME B1.20.1 

(incorporated by reference, see 

§ 3280.4). The material used for brazing 

pipe connections shall have a melting 

temperature in excess of 1,000 F. 

* * * * * 

■ 36. Amend § 3280.707 as follows: 

■ a. Revise the introductory text of 

paragraph (a); 

■ b. Revise the introductory text of 

paragraph (d)(2) and designate the table 

immediately following paragraph (d)(2) 

as table 1 to paragraph (d)(2); and 

■ c. Revise the introductory text of 

paragraph (f); 

The revisions read as follows: 

§ 3280.707 Heat producing appliances. 

(a) Heat producing appliances and 

vents, roof jacks and chimneys 

necessary for their installation in 

manufactured homes must be listed or 

certified for residential use by a 

nationally recognized testing agency. 

* * * * * 

(d) * * * 

(2) All gas and oil-fired automatic 

storage water heaters shall have a 

recovery efficiency, E, and a standby 

loss, S, as described below. The method 

of test of E and S shall be as described 

in section 2.7 of Gas Water heaters, Vol. 

I, Storage Water Heaters with Input/ 

Ratings of 75,000 BTU per hour or less, 

ANSI Z21.10.1 (incorporated by 

reference, see § 3280.4), except that for 

oil-fired units. CF = 1.0, Q = total 

gallons of oil consumed and H = total 

heating value of oil in BTU/gallon. 

* * * * * 

(f) Oil-fired heating equipment. All 

oil-fired heating equipment must 

conform to UL 307A (incorporated by 

reference, see § 3280.4) and be installed 

in accordance with NFPA 31 

(incorporated by reference, see 

§ 3280.4). Regardless of the 

requirements of the above-referenced 

standards, or any other standards 

referenced in this part, the following are 

not required: 

* * * * * 

■ 37. Amend § 3280.709 by revising the 

introductory text of paragraph (a) and 

the introductory text of paragraph (g) to 

read as follows: 

§ 3280.709 Installation of Appliances. 

(a) The installation of each appliance 

must conform to the terms of its listing 

and the manufacturer’s instructions. 

Every appliance must be secured in 

place to avoid displacement. For the 

purpose of servicing and replacement, 

each appliance must be both accessible 

and removable. 

* * * * * 

(g) Solid fuel burning fireplaces and 

fireplace stoves listed for residential use 

may be installed in manufactured 

homes provided they and their 

installation conform to the following 

paragraphs. A fireplace or fireplace 

stove is not to be considered as a 

heating facility for determining 

compliance with subpart F of this part. 

* * * * * 

■ 38. Revise § 3280.711 to read as 

follows: 

§ 3280.711 Instructions. 

Operating instructions must be 

provided with each appliance unless the 

appliance is affixed with a permanent 

Quick Response (QR) Code. The 

operating instructions for each 

appliance must be provided with the 

homeowner’s manual. 

■ 39. Amend § 3280.714 by revising 

paragraphs (a)(1) and (2) to read as 

follows: 

§ 3280.714 Appliances, cooling. 

(a) * * * 

(1) Mechanical air conditioners shall 

be rated in accordance with the ANSI/ 

AHRI Standard 210/240 with Addenda 

1 and 2 (incorporated by reference, see 

§ 3280.4) and certified by AHRI or other 

nationally recognized testing agency 

capable of providing follow-up service. 


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(i) Electric motor-driven unitary aircooled air conditioners and heat pumps 

in the cooling mode with rated capacity 

less than 65,000 BTU/hour (19,045 

watts), when rated at AHRI standard 

rating conditions in ANSI/AHRI 

Standard 210/240 with Addenda 1 and 

2 (incorporated by reference, see 

§ 3280.4), must have seasonal energy 

efficiency (SEER) values not less than as 

specified in 10 CFR part 430, Energy 

Conservation Program for Consumer 

Products: Central Air Conditioners and 

Heat Pumps Energy Conservation 

Standards. 

(ii) Heat pumps must be certified to 

comply with all requirements of the 

ANSI/AHRI Standard 210/240 with 

Addenda 1 and 2 (incorporated by 

reference, see § 3280.4). Electric motordriven vapor compression heat pumps 

with supplemental electrical resistance 

heat must be sized to provide by 

compression at least 60 percent of the 

calculated annual heating requirements 

for the manufactured home being 

served. A control must be provided and 

set to prevent operation of supplemental 

electrical resistance heat at outdoor 

temperatures above 40 °F (4 °C), except 

for defrost conditions. Electric motordriven vapor compression heat pumps 

with supplemental electric resistance 

heat conforming to ANSI/AHRI 

Standard 210/240 with Addenda 1 and 

2 (incorporated by reference, see 

§ 3280.4), must have Heating Season 

Performance Factor (HSPF) efficiencies 

not less than as specified in the 10 CFR 

part 430, Energy Conservation Program 

for Consumer Products: Central Air 

Conditioners and Heat Pumps Energy 

Conservation Standards. 

(iii) Electric motor-driven vapor 

compression heat pumps with 

supplemental electric resistance heat 

conforming to ANSI/AHRI Standard 

210/240 with Addenda 1 and 2 

(incorporated by reference, see 

§ 3280.4), shall show coefficient of 

performance ratios not less than shown 

below: 

(2) Gas fired absorption air 

conditioners must be listed or certified 

in accordance with ANSI Z21.40.1, 

(incorporated by reference, see 

§ 3280.4), and certified by a nationally 

recognized testing agency capable of 

providing follow-up service. 

* * * * * 

■ 40. Amend § 3280.715 as follows: 

■ a. Revise the introductory text of 

paragraph (a)(1) and designate the table 

immediately following paragraph (a)(1) 

as table 1 to paragraph (a)(1); and, 

■ b. Revise paragraph (c) and the 

introductory text of paragraph (e), 

The revisions read as follows: 

§ 3280.715 Circulating air systems. 

(a) * * * (1) Supply air ducts, fittings, 

and any dampers contained there-in 

must be made of galvanized steel, tinplated steel, or aluminum, or must be 

listed as Class 0 or Class 1 air ducts in 

accordance with UL 181 (incorporated 

by reference, see § 3280.4). Air ducts 

and air connectors located within three 

feet of the furnace discharge must be 

rated to withstand the maximum air 

discharge temperature of the equipment. 

Air connectors must not be used for 

exterior manufactured home duct 

connections. A duct system integral 

with the structure must be of durable 

construction that can be demonstrated 

to be equally resistant to fire and 

deterioration as required by this section. 

Ducts constructed of sheet metal must 

be in accordance with the following 

table: 

* * * * * 

(c) Joints and seams. Joints and seams 

of sheet metal and factory-made flexible 

ducts, including trunks, branches, 

risers, crossover ducts, and crossover 

duct plenums, shall be mechanically 

secured and made substantially airtight. 

Slip joints in sheet metal ducts shall 

have a lap of at least one inch (‘‘1’’) and 

shall be mechanically fastened. Tapes or 

caulking compounds shall be permitted 

to be used for sealing mechanically 

secure joints. Sealants and tapes shall be 

applied only to surfaces that are dry and 

dust-, dirt-, oil-, and grease-free. Tapes 

and mastic closure systems for use with 

factory-made rigid fiberglass air ducts 

and air connectors shall be listed in 

accordance with UL 181A (incorporated 

by reference, see § 3280.4). Tapes and 

mastic closure systems used with 

factory-made flexible air ducts and air 

connectors shall be listed in accordance 

with UL 181B, (incorporated by 

reference, see § 3280.4). 

* * * * * 

(e) Registers and grilles. Fittings 

connecting the registers and grilles to 

the duct system must be constructed of 

metal or material that complies with the 

requirements of Class 1 or 2 ducts under 

UL 181 (incorporated by reference, see 

§ 3280.4). Air supply terminal devices 

(registers) when installed in kitchen, 

bedrooms, and bathrooms must be 

equipped with adjustable closeable 

dampers. Registers or grilles must be 

constructed of metal or conform with 

the following: 

* * * * * 

■ 41. Amend § 3280.801 by revising 

paragraphs (a) and (b) to read as follows: 

§ 3280.801 Scope. 

(a) This subpart I incorporates by 

reference NFPA 70, the National 

Electrical Code (incorporated by 

reference, see § 3280.4) including Part II 

of Article 550 of NFPA 70, and covers 

the electrical conductors and equipment 

installed within or on manufactured 

homes and the conductors that connect 

manufactured homes to a supply of 

electricity. However, Articles 550.4(A) 

and 550.4(B) of NFPA 70 shall not 

apply. 

(b) In addition to the requirements of 

this part and Part II of Article 550 of 

NFPA 70, the applicable portions of 

other Articles of NFPA 70 referenced in 

this part must be followed for electrical 

installations in manufactured homes. 

The use of arc-fault breakers under the 

NFPA 70, are only required for general 

lighting circuits. Smoke alarms installed 

on a dedicated circuit do not require arc 

fault protection. Wherever arc-fault 

breakers are provided, such use must be 

in accordance with NFPA 70. Wherever 

the requirements of this part standards 

differ from NFPA 70, these standards 

apply. 

* * * * * 

■ 42. Amend § 3280.802 by revising 

paragraph (a)(21) to read as follows: 


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§ 3280.802 Definitions. 

* * * * * 

(21) Feeder assembly means the 

overhead or under-chassis feeder 

conductors, including the grounding 

conductor, together with the necessary 

fittings and equipment, or a power 

supply cord approved for manufactured 

home use, designed for the purpose of 

delivering energy from the source of 

electrical supply to the distribution 

panelboard within each dwelling unit. 

* * * * * 

■ 43. Amend § 3280.803 by revising 

paragraphs (a) and (k)(1) and (3) to read 

as follows: 

§ 3280.803 Power supply. 

(a) The power supply to the 

manufactured home must be a feeder 

assembly consisting of not more than 

one listed 50 ampere manufactured 

home power supply cord, or a 

permanently installed circuit. A 

manufactured home that is factory 

equipped with gas or oil-fired heating 

equipment and cooking appliances is 

permitted to be provided with a listed 

power supply cord rated 40 amperes. 

This section does not apply to multidwelling unit manufactured homes. 

* * * * * 

(k) * * * 

(1) One mast weatherhead installation 

installed in accordance with Article 230 

of NFPA No. 70 (incorporated by 

reference, see § 3280.4), containing four 

continuous insulated, color-coded, 

feeder conductors, one of which shall be 

an equipment grounding conductor; or 

* * * * * 

(3) Service equipment installed in or 

on the manufactured home, provided 

that all of the following conditions are 

met: 

(i) In its written installation 

instructions, the manufacturer must 

include information indicating that the 

home must be secured in place by an 

anchoring system or installed on and 

secured to a permanent foundation; 

(ii) The installation of the service 

equipment complies with Article 230 of 

NFPA 70. Exterior service equipment or 

the enclosure in which it is to be 

installed must be weatherproof, and 

conductors must be suitable for use in 

wet locations; 

(iii) The installation of the service 

equipment complies with Article 230 of 

NFPA 70. Exterior service equipment or 

the enclosure in which it is to be 

installed must be weatherproof, and 

conductors must be suitable for use in 

wet locations; 

(iv) Bonding and grounding of the 

service must be in accordance with 

Article 250 of NFPA 70; 

(v) The manufacturer must include in 

its installation instructions one method 

of grounding the service equipment at 

the installation site. The instructions 

must clearly state that other methods of 

grounding are found in Article 250 of 

NFPA 70; 

(vi) The minimum size grounding 

electrode conductor must be specified 

in the instructions; and 

(vii) A red warning label must be 

mounted on or adjacent to the service 

equipment. The label must state the 

following: WARNING—DO NOT 

PROVIDE ELECTRICAL POWER UNTIL 

THE GROUNDING ELECTRODE(S) IS 

INSTALLED AND CONNECTED (SEE 

INSTALLATION INSTRUCTIONS). 

■ 44. Amend § 3280.804 as follows: 

■ a. Revise paragraphs (a) and (c); 

■ b. Revise the introductory text of 

paragraph (g), add and reserve 

paragraph (g)(2); 

■ c. Revise paragraph (k); and 

■ d. Add paragraph (m). 

The revisions and addition read as 

follows: 

§ 3280.804 Disconnecting means and 

branch-circuit protective equipment. 

(a) The branch-circuit equipment is 

permitted to be combined with the 

disconnecting means as a single 

assembly. Such a combination is 

permitted to be designated as a 

distribution panelboard. If a fused 

distribution panelboard is used, the 

maximum fuse size for the mains shall 

be plainly marked, with the lettering at 

least 1⁄4 inch high and visible when 

fuses are changed. See Article 110.22 of 

NFPA 70 (incorporated by reference, see 

§ 3280.4), concerning the identification 

of each disconnecting means and each 

service, feeder, or branch circuit at the 

point where it originated, and the type 

of marking needed. 

* * * * * 

(c) A single disconnecting means 

must be provided in each dwelling unit, 

consisting of a circuit breaker, or a 

switch and fuses and its accessories, 

installed in a readily accessible location 

near the point of entrance of the supply 

cord or conductors into the dwelling 

unit. 

* * * * * 

(g) Branch-circuit distribution 

equipment must be installed in each 

dwelling unit and must include 

overcurrent protection for each branch 

circuit consisting of either circuit 

breakers or fuses. 

* * * * * 

(k) When a home is provided with 

installed service equipment, a single 

disconnecting means for disconnecting 

the branch circuit conductors from the 

service entrance conductors must be 

provided in accordance with Article 

230, Part VI of NFPA 70 (incorporated 

by reference, see § 3280.4). The 

disconnecting means shall be listed for 

use as service equipment. The 

disconnecting means may be combined 

with the disconnect required by 

paragraph (c) of this section. The 

disconnecting means shall be rated not 

more than the ampere supply or service 

capacity indicated on the tag required 

by paragraph (l) of this section. 

* * * * * 

(m) A service distribution panel must 

be factory installed and connected to the 

subpanels on multi-dwelling unit 

manufactured homes. 

■ 45. Amend § 3280.805 by revising 

paragraphs (a)(1) and (3)(iv) to read as 

follows: 

§ 3280.805 Branch circuits required. 

(a) * * * 

(1) Lighting. For lighting, based on a 

3 volt-amperes per square foot times 

outside dimensions of each dwelling 

unit (coupler excluded) divided by 120 

volts times amperes to determine the 

number of 15 or 20 ampere lighting area 

circuits. 

* * * * * 

(3) * * * 

(iv) The rating of the range branch 

circuit is based on the range demand as 

specified for ranges in § 3280.811(a)(5). 

For central air conditioning, see Article 

440 of NFPA 70 (incorporated by 

reference, see § 3280.4). 

* * * * * 

■ 46. Amend § 3280.806 by revising 

paragraphs (a)(2) and (d)(8) to read as 

follows: 

§ 3280.806 Receptacle outlets. 

(a) * * * 

(2) Installed according to Article 406.3 

of NFPA 70 (incorporated by reference, 

see § 3280.4). 

* * * * * 

(d) * * * 

(8) At least one receptacle outlet shall 

be installed outdoors. Additional 

outdoor receptacles shall be installed in 

accordance with Article 210.52(E)(3) of 

NFPA 70 (incorporated by reference, see 

§ 3280.4), except those balconies, decks, 

or porches with an area of less than 20 

square feet are not required to have an 

additional receptacle installed. 

* * * * * 

■ 47. Amend § 3280.807 by revising 

paragraph (c) to read as follows: 

§ 3280.807 Fixtures and appliances. 

* * * * * 

(c) Where a lighting fixture is 

installed over a bathtub or in a shower 


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stall, it must be listed for wet locations. 

See also Article 410.4(D) of NFPA 70 

(incorporated by reference, see 

§ 3280.4). 

* * * * * 

■ 48. Amend § 3280.808 by revising 

paragraphs (a), (k), (l), and (p) to read as 

follows: 

§ 3280.808 Wiring methods and materials. 

(a) Except as specifically permitted by 

this part, the wiring methods and 

materials specified in NFPA 70 

(incorporated by reference, see § 3280.4) 

must be used in manufactured homes. 

* * * * * 

(k) Where outdoor or under-chassis 

line voltage (120 volts, nominal or 

higher) wiring is exposed to moisture or 

subject to physical damage, it must be 

protected by a conduit or raceway 

approved for use in wet locations. The 

conductors must be suitable for use in 

wet locations. 

(l) Outlet boxes of dimensions less 

than those required in Table 314.16(A) 

of NFPA 70 (incorporated by reference, 

see § 3280.4), are permitted provided 

the box has been tested and approved 

for that purpose. 

* * * * * 

(p) A substantial brace for securing a 

box, fitting, or cabinet must be as 

described in Article 314.23(B) of NFPA 

70 (incorporated by reference, see 

§ 3280.4), or the brace, including the 

fastening mechanism to attach the brace 

to the home structure, must withstand a 

force of 50 lbs. applied to the brace at 

the intended point(s) of attachment for 

the box in a direction perpendicular to 

the surface on which the box is 

installed. 

* * * * * 

■ 49. Amend § 3280.810 by revising 

paragraph (b)(3) to read as follows: 

§ 3280.810 Electrical testing. 

* * * * * 

(b) * * * 

(3) Electrical polarity checks to 

determine that connections have been 

made in accordance with applicable 

provisions of these standards and 

Article 550.17 of NFPA 70 (incorporated 

by reference, see § 3280.4). Visual 

verification is an acceptable electrical 

polarity check. 

■ 50. Amend § 3280.811 by revising the 

introductory text of paragraph (b) to 

read as follows: 

§ 3280.811 Calculations. 

* * * * * 

(b) The following is an optional 

method of calculation for lighting and 

appliance loads for manufactured 

homes served by single 3-wire 120/240 

volt set of feeder conductors with an 

ampacity of 100 or greater. The total 

load for determining the feeder 

ampacity may be computed in 

accordance with the following table 

instead of the method previously 

specified. Feeder conductors whose 

demand load is determined by this 

optional calculation are permitted to 

have the neutral load determined by 

Article 220.61 of NFPA 70 (incorporated 

by reference, see § 3280.4). The loads 

identified in the table as ‘‘other load’’ 

and as ‘‘Remainder of other load’’ must 

include the following: 

* * * * * 

■ 51. Amend § 3280.1003 by revising 

paragraph (a)(1) to read as follows: 

§ 3280.1003 Attached manufactured home 

unit separation. 

(a) * * * (1) Attached manufactured 

homes shall be separated from each 

other by a fire separation wall of not less 

than 1-hour fire-resistive rating with 

exposure from both sides on each 

attached manufactured home unit when 

rated based on tests in accordance with 

ASTM E119 (incorporated by reference, 

see § 3280.4). 

* * * * * 

PART 3282—MANUFACTURED HOME 

PROCEDURAL AND ENFORCEMENT 

REGULATIONS 

■ 52. The authority citation for part 

3282 continues to read as follows: 

Authority: 15 U.S.C. 2697, 28 U.S.C. 2461 

note, 42 U.S.C. 3535(d), 5403, and 5424. 

■ 53. Amend § 3282.7 by revising 

paragraphs (t) and (v) and removing 

paragraph (oo) to read as follows: 

§ 3282.7 Definitions. 

* * * * * 

(t) Length of Manufactured Home is 

defined in § 3280.2 of this chapter. 

* * * * * 

(v) Manufactured Home is defined in 

§ 3280.2 of this chapter. 

* * * * * 

§ 3282.8 [Amended]. 

■ 54. Amend § 3282.8 by removing 

paragraph (l). 

PART 3285—MODEL MANUFACTURED 

HOME INSTALLATION STANDARDS 

■ 55. The authority citation for part 

3285 continues to read as follows: 

Authority: 42 U.S.C. 3535(d), 5403, 5404, 

and 5424. 

■ 56. Amend § 3285.5 as follows: 

■ a. Add, in alphabetical order, 

definition for ‘‘peak cap assembly’’; 

■ b. Remove definition for ‘‘Peak 

capconstuction’’ and add, in its place, a 

definition for ‘‘Peak cap construction’’; 

■ c. Add, in alphabetical order, 

definitions for ‘‘peak cap assembly’’ and 

‘‘peak flip assembly’’ 

■ d Remove definition for ‘‘Peak 

flipconstruction’’ and add, in its place, 

a definition for ‘‘Peak flip construction’’. 

The additions read as follows: 

§ 3285.5 Definitions. 

* * * * * 

Peak cap assembly means any roof 

peak assembly that is either shipped 

loose or site completed and is site 

installed to finish the roof ridge/peak of 

a home. 

Peak cap construction means any roof 

peak construction that is either shipped 

loose or site constructed and is site 

installed to complete the roof ridge/peak 

of a home. Peak flip assembly means 

any roof peak assembly that requires the 

joining of two or more cut top chord 

members on site. The cut top chords 

must be joined at the factory by straps, 

hinges, or other means. 

Peak flip construction means any roof 

peak construction that requires the 

joining of two or more cut top chord 

members on site. The cut top chords 

must be joined at the factory by straps, 

hinges, or other means. 

* * * * * 

■ 57. Amend § 3285.503 by revising 

paragraph (b) to read as follows: 

§ 3285.503 Optional appliances. 

* * * * * 

(b) Fireplaces and wood-stoves. When 

not provided by the home manufacturer, 

fireplaces and wood-stoves must be 

listed for residential use and must be 

installed in accordance with their 

listings. 

* * * * * 

■ 58. Add § 3285.506 to subpart F to 

read as follows: 

§ 3285.506 Testing and certification of fire 

sprinkler systems for multi-dwelling units. 

The installer will certify and test 

residential fire sprinkler systems on site 

in accordance with home 

manufacturer’s instructions and as 

outlined in § 3280.214 of this chapter. 

The installer should ensure that a 

required listed minimum water supply 

is available for the system. Testing 

requirements are to be consistent with 

§ 3280.612(a) of this chapter and 

certified by the installer. 

■ 59. Amend § 3285.603 by revising 

paragraphs (d)(3) and (e)(1) to read as 

follows: 

§ 3285.603 Water supply. 

* * * * * 


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43166 Federal Register / Vol. 87, No. 137 / Tuesday, July 19, 2022 / Proposed Rules 

(d) * * * 

(3) Only heat tape or pipe heating 

cable listed and certified for its intended 

purpose is permitted for use, and it 

must be installed in accordance with 

tape or cable manufacturer installation 

instructions. 

(e) * * * (1) The water system must 

be inspected and tested for leaks after 

completion at the site. The installation 

instructions must provide testing 

requirements that are in accordance 

with the piping manufacturer’s 

instructions. 

* * * * * 

■ 60. Amend § 3285.801 by revising 

paragraph (f)(2) to read as follows: 

§ 3285.801 Exterior close-up. 

* * * * * 

(f) * * * 

(2) In which the roof pitch of the 

hinged roof is less than 7:12, including 

designs incorporating peak cap or peak 

flip assembly components; and 

* * * * * 

PART 3286—MANUFACTURED HOME 

INSTALLATION PROGRAM 

■ 61. The authority citation for part 

3286 continues to read as follows: 

Authority: 42 U.S.C. 3535(d), 5404, and 

5424. 

■ 62. Revise § 3286.103 to read as 

follows: 

§ 3286.103 DAPIA-approved installation 

instructions. 

(a) Providing instructions to purchaser 

or lessee. (1) For each manufactured 

home sold or leased to a purchaser or 

lessee, the retailer must provide the 

purchaser or lessee with the 

manufacturer’s DAPIA-approved 

installation instructions for the home, a 

copy of which is shipped with the home 

in accordance with § 3285.2 of this 

chapter. 

(2) If the installation requires a design 

that is different from that provided by 

the manufacturer in paragraph (a)(1) of 

this section, the installation design and 

instructions must be prepared and 

certified by a professional engineer or 

registered architect, that have been 

approved by the manufacturer and the 

DAPIA as providing a level of protection 

for residents of the home that equals or 

exceeds the protection provided by the 

federal installation standards in part 

3285 of this chapter. The retailer or 

manufacturer must provide the 

installation design and instructions to 

the purchaser or lessee. 

(b) Providing instructions to installer. 

When the retailer or manufacturer 

agrees to provide any set up in 

connection with the sale of the home, 

the retailer or manufacturer must 

provide to the licensed installer a copy 

of the approved installation instructions 

required in paragraph (a)(1) or (2) of this 

section or, as applicable, to each 

company or, in the case of sole 

proprietor, to each individual who 

performs setup or installation work on 

the home. 

■ 63. Amend § 3286.205 by revising 

paragraph (d) to read as follows: 

§ 3286.205 Prerequisites for installation 

license. 

* * * * * 

(d) Insurance and either a surety bond 

or irrevocable letter of credit. An 

applicant for an installation license 

must provide evidence of and must 

maintain, when available in the state of 

installation, insurance and either a 

surety bond or irrevocable letter of 

credit that will cover the cost of 

repairing all damage to the home and its 

supports caused by the installer during 

the installation up to and including 

replacement of the home. HUD may 

require the licensed installer to provide 

proof of the surety bond or insurance at 

any time. The licensed installer must 

notify HUD of any changes or 

cancellations with the insurance 

coverage, surety bond, or irrevocable 

letter of credit. 

■ 64. Amend § 3286.207 by revising 

paragraph (d) to read as follows: 

§ 3286.207 Process for obtaining 

installation license. 

* * * * * 

(d) Proof of insurance and either a 

surety bond or irrevocable letter of 

credit. Every applicant for an 

installation license must submit the 

name and proof of the applicant’s 

insurance carrier and the number of the 

policy, surety bond, or irrevocable letter 

of credit required in § 3286.205(d). 

* * * * * 

■ 65. Amend § 3286.209 by revising 

paragraph (b)(8)(vi) to read as follows: 

§ 3286.209 Denial, suspension, or 

revocation of installation license. 

* * * * * 

(b) * * * 

(8) * * * 

(vi) Failure to maintain the insurance 

and either a surety bond or irrevocable 

letter of credit, required by 

§ 3286.205(d). 

* * * * * 

■ 66. Amend § 3286.409 by revising 

paragraph (b) to read as follows: 

§ 3286.409 Obtaining inspection. 

* * * * * 

(b) Contract rights not affected. 

Failure to arrange for an inspection of a 

home within 10 business days will not 

affect the validity or enforceability of 

any sale or contract for the sale of any 

manufactured home. 

* * * * * 

Julia Gordon, 

Assistant Secretary for Housing—Federal 

Housing Commissioner. 

[FR Doc. 2022–14701 Filed 7–18–22; 8:45 am] 

BILLING CODE 4210–67–P 


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