New Hampshire

Last updated on 2014-01-17

Current Code2009 IECC
Amendments / Additional State Code InformationThe New Hampshire commercial code is the 2009 IECC with direct reference for compliance to ASHRAE Standard 90.1-2007. 103.5 compliance except any structure three stories or less above grade plane in height and less than 4,000 square feet in gross floor area is permitted to show envelope compliance based on Chapter 4.

Approved Compliance ToolsCan use COMcheck
State Specific Research Impacts of ASHRAE 90.1-2007 for Commercial Buildings in the State of New Hampshire (BECP Report, Sept. 2009)
Approximate Energy EfficiencyEquivalent to 2009 IECC
Effective Date04/01/2010
Adoption Date12/11/2009
Code EnforcementMandatory
DOE DeterminationASHRAE 90.1-2007: Yes
ASHRAE 90.1-2010: No

Energy cost savings for New Hampshire resulting from the state updating its commercial and residential building energy codes in accordance with federal law are significant, estimated to be on the order of nearly $40 million annually by 2030.

New Hampshire DOE Determination Letter, May 31, 2013

New Hampshire State Certification of Commercial and Residential Building Energy Codes
Current Code2009 IECC
Amendments / Additional State Code Information
Approved Compliance ToolsCan use REScheck
For certification of compliance with the Residential Energy Code, fill out the EC-1 form and submit it to the PUC. REScheck should be used only if your structure will not meet the code requirements laid out in the EC-1 form. NOTE: REScheck will not allow trade-offs for high efficiency heating systems. If you wish to use the software approach to prove compliance of residential structures with the code, you should download the latest version of REScheck Software. Click on Code on the toolbar and set to 2009 IECC. Select the State of New Hampshire and City to the municipality where the project is planned. In the case of Durham, select Concord as the City.
Residential Energy Code Application EC-1 Form
State Specific Research Impacts of the 2009 IECC for Residential Buildings in the State of New Hampshire (BECP Report, Sept. 2009)
Approximate Energy EfficiencyEquivalent to 2009 IECC
Effective Date04/01/2010
Adoption Date12/11/2009
Code EnforcementMandatory
DOE Determination2009 IECC: Yes
2012 IECC: No

Energy cost savings for New Hampshire resulting from the state updating its commercial and residential building energy codes in accordance with federal law are significant, estimated to be on the order of nearly $40 million annually by 2030.

New Hampshire DOE Determination Letter, May 31, 2013

New Hampshire State Certification of Commercial and Residential Building Energy Codes
Code Change ProcessRegulatory
Code Change CycleReviewed
Timeline of CycleEvery 3 years

State Owned / Funded Buildings

Executive Order 2011-1: New construction or renovations in excess of 25,000 square feet or $1 million shall meet or exceed current IECC energy code. Energy modeling is required to be conducted during the design process and third party commissioning is required in accordance with the recommendations of the Interagency Energy Efficiency Committee. Where practicable, all new construction projects shall include a renewable energy component in their design.

Adoption Process

All Building Codes are reviewed as they are issued by the International Code Council, now a 3 year schedule.

The Building Code Review Board has authority to change and amend codes pursuant to RSA 155-A:10 V. Those changes must be ratified by the Legislature within 2 years to remain in effect. The PUC can no longer amend the energy code.

The statewide requirements are changed as needed; no definitive schedule is followed for updates. Local governments may adopt different requirements only if those requirements are more energy efficient than the state code. The entire process takes six months to a year to complete.

Enforcement Process

The local building official enforces the energy requirements. Compliance is shown by either 1) submitting a letter of certification for the building from a New Hampshire licensed architect or engineer to the town with a copy forwarded to the PUC or 2) processing an application for certificate of compliance through the PUC or the local building code official.

Compliance Process

Plans are not required unless REScheck or COMcheck are used; only the EC-1 form 2010 New Hampshire Residential Energy Code Applicationshould be submitted if the applicant uses the prescriptive compliance path.

All plans must be submitted to the local building code official. If there is no code official, then the plans and a certificate of compliance application must be sent to the PUC for review and certification.

REScheck can be used to show compliance for residential buildings, and COMcheck for commercial buildings.

Background

The original code was administered by the Governor's Council on Energy from 1979 to 1982. When that state energy office closed in 1982, administrative responsibility was transferred to the New Hampshire PUC. In 1990 the PUC was granted rulemaking authority over the code (i.e., ability to revise the code without an act of the legislature).

The original energy code for New Hampshire was enacted in response to PL-94-163. This enabling legislation was RSA 155:D, which applied to both residential and commercial buildings and was based on ASHRAE/IES Standard 90-75 and the National Conference of States on Building Codes and Standards "Code for Energy Conservation in New Building Construction" dated December 1977. RSA 155:C, which related to energy conservation in state-owned buildings, was later repealed. The residential standards and administrative sections of RSA 155:D were revised in 1986. The standards for commercial buildings were revised in 1993 to reflect the EPAct requirement for compliance with ASHRAE/IESNA 90.1-1989.

New Hampshire adopted the 1995 MEC effective February 1, 1999.

 

New Hampshire signed a statewide building code into law on March 18, 2002. The mandatory New Hampshire building code adopts the 2000 IECC by reference, effective September 14, 2002, 180 days after the passage of legislation.

New Hampshire updated their statewide energy code from the 2000 IECC to 2006 IECC with amendments in 2007.

The 2009 IECC became effective with amendments on April 1, 2010.