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Building Code Reference Library
New Hampshire Building Codes
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Below you can find links to Building Codes and Authorities Having Jurisdiction for the state of New Hampshire. To change to another state, click on the map to the right.
This information is obtained directly from the source -- the city, county and state building departments that issue these codes. If you find an error, please send an e-mail with the updated information to RCDWebmaster@ReedBusiness.com.
Notes Concerning New Hampshire Building Codes
• New Hampshire's building codes are mandatory minimums for all buildings unless otherwise indicated.
Effective April 1, 2010, the NH State Building Code has been amended with the 2009 I-codes. The requirements for automatic sprinkler systems in one- and two-family dwellings and townhouses will NOT take effect until April 1, 2012 (check local ordinances).
New Hampshire Building Codes
| Code Type | Code Model | Amendment Contact |
| Building/Dwelling Code | IBC 2009 & IRC 2009 with amendments | Fire Marshal's Office, (603) 271-3294 and Department of Safety |
 | Applies as a mandatory minimum to all buildings except one and two family dwellings | |
| Structural Code | IBC 2009 & IRC 2009 with amendments | Fire Marshal's Office, (603) 271-3294 and Department of Safety |
| Applies as a mandatory minimum to all buildings except one and two family dwellings | |
| Plumbing Code | IPC 2009 with amendments | State Plumber's Board, (603) 271-3267 and Department of Safety |
| Local jurisdictions must get state approval to make code more stringent | |
| Mechanical Code | IMC 2009 with amendments | Fire Marshal's Office, (603) 271-3294 and Department of Safety |
| Electrical Code | NEC 2009 with amendments | Fire Marshal's Office, (603) 271-3294 and Department of Safety |
| Fire/Life Safety Code | NFPA 1, UFC 2003 (State Fire Code) | Fire Marshal's Office, (603) 271-3294 and Department of Safety |
| Accessibility Code | IBC 2006, ICC/ANSI A117.1-2003 | Online |
| Applies to publicly-funded buildings, government-owned buildings and public accommodations | |
| Energy Code | IECC 2009 with amendments | Public Utilities Commission, (603) 271-2431 and Department of Safety |
| Applies to commerical and industrial buildings over 4,000 square feet | |
| Elevator Code | ASME A17.1 | Online |
| Gas Code | State Fire Code | Fire Marshal's Office, (603) 271-3294 |
| Boiler Code | ASME Boiler & Pressure Vessel Code | Online |
New Hampshire Authorities Having Jurisdiction (AHJ)
Authorities Having Jurisdiction are those government officials who are the final authority on questions in a particular area (or jurisdiction).
| Jurisdictional Area | Contact |
| Structural | State Fire Marshal's Office Phone: (603) 271-3294 |
| Plumbing | State Board for the Licensing and Regulation of Pl Phone: (603) 271-3267 Fax: (603) 271-6656 |
| Electrical | Electrician Board Phone: (603) 271-3748 |
| Energy | Jon Osgood Utility Analyst, Public Utilities Commission Phone: (603) 271-6550 Fax: (603) 271-3878 |
| Fire Marshal | J William Degnan State Fire Marshal's Office, Division of Fire Safe Phone: (603) 271-3294 Fax: (603) 271-1091 |
| Boiler Inspector | Boilers & Elevators, Dept. of Labor Phone: (603) 271-2584 |
| Elevator Inspector | Boilers & Elevators, Dept. of Labor Phone: (603) 271-2585 |
New Hampshire Building Code Website