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Modular Homes Building Codes

Building codes are the laws and regulations that specify the way something should be constructed. The federal government requires that the HUD building code be used for all mobile/manufactured homes. Modular building construction is regulated at the state and local levels the same way traditional site built homes are. Your modular building contractor should already know the regulations that apply to your project based on the address of the physical building site and the agencies that have jurisdiction over that area. Here is a brief overview of building codes based on state regulations. Remember to check with your state and local agencies to ensure your building will meet or exceed the required building codes and also that you apply for the necessary permits.
    Glossary
    Structure
    SBC - Standard Building Code
    IBC - International Building Code
    UBC - Uniform Building Code

    Mechanical
    SMC - Standard Mechanical Code
    IMC - International Mechanical Code
    UMC - Uniform Mechanical Code

    Plumbing
    SPC - Standard Plumbing Code
    UPC - Uniform Plumbing Code
    IPC - International Plumbing Code
    NSPC - National Standard Plumbing Code

    Electrical
    NEC - National Electrical Code

    General
    IAPMO - International Association of Plumbing and Mechanical Officials
StateStructure CodeMechanical CodePlumbing CodeElectrical CodeLicensing Contact
AL1999 SBC (state modified)1997 SMC1997 SPC2002 NECLicensing Board of General Contractor, 334-272-5030
AK2000 IBC (state modified)2000 IMC (state modified)2003 UPC2002 NECDept. of community & Economic Development, Division of Occupational Licensing, Contractors Registration Section, 907-465-3035
AZNoneNone1994 UPC (IAPMO edition) (state modified)1987 NECRegistrar of Contractors, 602-542-1525
AR2000 IBC (state modified)2003 IMC (state modified)state written2002 NECContractor's Licensing Board, 501-372-4661
CA1997 UBC (state modified)2000 UMC IAPMO (state modified)2000 UPC (IAPMO edition) (state modified)1999 NEC (state modified)Contractor's State Licensing Board, 916-255-3900
CO1997 UBC1997 UMC1997 UPC1999 NECState Electrical Board, 303-894-7800, Board of Plumbers, 303-894-7800
CT1996 NBC (state modified)1996 IMC (state modified)1997 IPC (state modified)1999 NECDept. of Consumer Protection, Professional Occupational Licensing Division, 860-713-6135
DENoneNoneNone1999 NECDept. of Finance, Division of Revenue, 302-577-8205
FL1997 SBC (state modified)1998 IMC (state modified)1997 IPC (state modified)1999 NECDept. of Business & Professional Regulation, The Construction Industry Licensing Board, 850-487-1395
GA2000 IBC (state modified)2000 IMC (state modified)2000 IPC (state modified)1999 NEC (state modified)Construction Industry Licensing Board, 478-207-1416
HINoneState WrittenNoneNoneDept. of Commerce & Community Affairs, Professional & Vocational Licensing Division, 808-586-3000
ID2000 INC2000 IMC2000 UPC with state supplement2002 NEC (state modified)Electrical: Division of Building Safety, Electrical Bureau, 208-334-2183; Plumbing: Division of Building Safety, Plumbing Bureau, 208-334-3442
ILNoneNoneIllinois Plumbing Code (state written)NoneDept. of Professional Regulation 217-785-0800
IN2000 IBC (state modified)2000 IMC (state modified)1997 UPC (IAPMO edition) (state modified)2002 NEC (state modified)Professional Licensing Agency, 317-232-2980
IA1994 UBC (state modified)1994 UMC (state modified)1994 UPC (state modified)1996 NECDivision of Labor, 515-242-5871
KS1997 UBC1997 UMC1997 UPC1999 NECDept. of Revenue, Director of Taxation Registration, 785-368-8222
KY2000 IBC (state modified)2000 IMCstate written2002 NEC (state modified)Plumbing: Dept. of Housing, Division of Plumbing, 502-573-0382; Electrical: State Fire Marshall, 502-573-0395
LA2000 IBC2000 IMC1994 SPC (state modified)1999 NECState Licensing Board for Contractors, 225-765-2301
MENoneNonestate written2002 NECDept. of Professional & Financial Regulations, 207-624-8603
MD2000 IBC (state modified)2000 IMC2000 NSPC with supplement and modifications2002 NECState Board of Plumbing, 410-230-6164
MA1993 NBC (state modified)1993 NMCstate written2002 NEC (state modified)State Board of Building Regulations & Standards, 617-727-7532 ext. 25205
MI2000 IBC (state modified)State WrittenState Written2002 NECDept. of Consumer & Industry Services, Bureau of Commercial Services-Builders Unit, 517-241-9254
MN2000 IBC (state modified)state writtenstate written2002 NECDept. of Commerce, Licensing Unit, 651-296-6319
MS1997 SBC1997 SMC1997 SPC1996 NECMississippi State Board of Contractors, 601-354-6161
MO2000 IBC (state modified)2000 IMC2000 IPC1999 NECMissouri Division of Fire Safety (573) 751-2930
MT2000 IBC (state modified)1997 UMC (state modified)2000 UPC (state modified)2002 NEC (state modified)Contractor Registration Unit, Employment Relations Division, Dept. of Labor & Industry, 406-444-7734; Plumbing and Electrical Licensing, 406-841-2367
NE2001 IBCNoneNone2002 NECDepartment of Revenue 402-471-5729
NV2003 IBC1997 UMC (state modified)1997 UPC1996 NECNevada State Contractor's Board, 702-688-1141 or 702-486-1100
NH2000 IBC2000 IMC2000 IPC (state modified)2002 NECPlumbing: Plumber's Licensing Board, 603-271-3267; Electrical: Electrician's Licensing Board, 603-271-3748
NJ2000 IBC (state modified)2000 IMC (state modified)2000 NSPC (state modified)2002 NEC (state modified)Electrical: Dept. of Law & Public Safety,Board of Examiners of Electrical Contractors, 973-504-6410;Plumbing: Dept. of Law & Public Safety, Board of Examiners of Master Plumbers, 973-504-6420
NM1997 UBC (state modified)1997 UMC (state modified)1997 UPC (state modified)1999 NEC (state modified)Regulations and Licensing Dept., Construction Industry Division, 505-827-7030
NY2000 IBC (state modified)2000 IMC (state modified)2002 IPC (state modified)2002 NECState Dept. of Labor, Div. Of Safety/Health, License and Certification Unit, 518-457-2735.
NC2000 IBC (state modified)2000 IMC (state modified)2000 IPC (state modified)2002 NEC (state modified)Licensing Board for General Contractors, 919-571-4183
ND2000 IBC (state modified)2000 IMC2000 UPC with state supplement2002 NEC (state modified)Secretary of State, 701-328-3665
OH2000 IBC (state modified)2000 IMC (state modified)2000 IPC (state modified)2002 NECLead abatement & asbestos: Dept. of Health, Asbestos Program, 614-466-1450; Plumbing, electrical, hydronics and HVAC: Construction Industry, Examining Board, 614-644-3493
OK2003 INC2000 IMC2000 IPC1999 NECConstruction Industries Board, Occupational Licensing, 405-271-5217
OR1997 UBC (state modified)1998 IMC (state modified)1997 UPC (state modified)2002 NEC (state modified)Construction Contractor's Board, 503-378-4621. Electrical & Plumbing; Building Codes Division, 503-378-4133; Asbestos: Department of Environmental Quality, 503-229-5982
PA2003 IBC (state modified)2003 IMC2003 IPC2003 ICC Electrical CodeDepartment of General Services, Public Works, 717-787-6371
RI1996 NBC (state modified)2000 IMC (state modified)2000 IPC (state modified)2002 NEC (state modified)Dept. of Administration, Building Codes Commission, Contractor's Registration Board, 401-222-1268
SC2000 IBC (state modified)2000 IMC2000 IPC with state amendment1999 NECLicensing Board for Contractors, 803-896-4686
SD1997 UBC (state modified)1997 UMC (state modified)1996 NSPC (state modified)1999 NEC (state modified)Plumbing: State Plumbing Commission, 605-773-3429; Electrical: State Electrical Commission, 800-233-7765
TN2000 IBC (state modified)1997 SMC1997 SPC1999 NEC (state modified)Board of Licensing Contractors, 800-544-7693
TXNoneNoneNoneNoneAir Conditioning & Refrigeration, 512-463-6599; Plumbing, 512-458-2145
UT2003 IBC (state modified)2003 IMC (state modified)2003 IPC (state modified)2002 NEC (state modified)Dept. of Commerce, Division of Occupational & Professional Licensing, 801-530-6628
VT1996 NBC (state modified)1996 IMC1990 NPC (state modified)2002 NEC and state rulesDept. of Labor & Industry, 802-828-2107
VA2000 IBC (state modified)2000 IMC (state modified)2000 IPC with supplement (state modified)1999 NEC (state modified)Dept. of Professional & Occupational Regulations, State Board of Contractors, 804-367-8511
WA2003 IBC (state modified)2003 IMC (state modified)2000 UPC IAPMO (state modified) 1999 NEC and state rulesDept. of Labor & Industries, Compliance Division, Contractor Registration Section, 360-902-5226
WV2000 IBC (state modified)2000 IMC2000 IPC1996 NECContractor's Licensing Board, 304-558-7890
WI2000 IBM2000 IMCstate written1999 NEC (state modified)Dept. of Commerce, Credentialing Unit, 608-261-8500
WY2003 IBC2003 IMCnone2002 NECDept. of Fire Prevention & Electrical Safety, 307-777-7288
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