MEP
State Amended
New Hampshire Electrical Code
Adopted from:2023 NFPA 70 National Electrical Code (NFPA 70)
Effective Period
Learn moreJul 1, 2025—Present
Building Codes by State & Jurisdiction
Select any state to instantly see which building codebooks apply – including the adopted base code, effective period, and amendments.
Fire
State Amended
New Hampshire Fire Code- Uniform Fire Code
Adopted from:2021 NFPA 1 Fire Code (NFPA 1)
Effective Period
Learn moreAug 13, 2024—Present
Fire
State Amended
New Hampshire Fire Code- Life Safety Code
Adopted from:2021 NFPA 101 Life Safety Code (NFPA 101)
Effective Period
Learn moreAug 13, 2024—Present
MEP
State Edition
New Hampshire Plumbing Code
Adopted from:2021 International Plumbing Code (IPC)
Effective Period
Learn moreJul 1, 2024—Present
Building
State Edition
New Hampshire Swimming Pool and Spa Code
Adopted from:2021 International Swimming Pool and Spa Code (ISPSC)
Effective Period
Learn moreJul 1, 2024—Present
Building
State Edition
New Hampshire Building Code
Adopted from:2021 International Building Code (IBC)
Effective Period
Learn moreJul 1, 2024—Present
MEP
State Edition
New Hampshire Mechanical Code
Adopted from:2021 International Mechanical Code (IMC)
Effective Period
Learn moreJul 1, 2024—Present
Residential
State Edition
New Hampshire Residential Code
Adopted from:2021 International Residential Code (IRC)
Effective Period
Learn moreJul 1, 2024—Present
Building
State Edition
New Hampshire Existing Building Code
Adopted from:2021 International Existing Building Code (IEBC)
Effective Period
Learn moreJul 1, 2024—Present
Energy
State Amended
New Hampshire Energy Conservation Code
Adopted from:2018 International Energy Conservation Code (IECC)
Effective Period
Learn moreJul 1, 2022—Jun 30, 2022
People also ask
New Hampshire has adopted 10 active building codes, including editions of the New Hampshire Electrical Code, New Hampshire Fire Code- Uniform Fire Code, New Hampshire Fire Code- Life Safety Code. Use the list above to verify the specific year and edition for your project.
No, New Hampshire generally mandates statewide building code adoption, ensuring consistent construction standards across all jurisdictions.
Most states, including New Hampshire, review and adopt new building code editions every 3 to 6 years, typically following the triennial publication cycles of the ICC and NFPA.
New Hampshire's current building code adoption is based on the 2023 edition cycle. Check the code cards above for specific edition years for each code type (IBC, IRC, IFC, etc.).
New Hampshire publishes statewide amendments. The amendment type for each code is indicated by the badge (As Is, State Amended, or State Edition) on each code card above.
Permit requirements in New Hampshire depend on the locally adopted building codes shown above. Contact your local building department for specific permit thresholds and submittal requirements. The code edition in effect on your permit application date determines which requirements apply to your project.