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Current Energy Code Status

Residential Commercial
Current State Code 2021 IECC 2021 IECC and ASHRAE 90.1-2019
State Amendments Yes Yes
Equivalent Code* 2021 IECC 90.1-2019
Amendments Efficiency Impact
(Compared to Model Adopted Code)
0.00% 2.00%
Effective Date
Enforcement Mandatory Statewide Mandatory Statewide
Can use COMcheck / Rescheck Yes Yes

*Equivalent Code is based on a quantitative analysis of the state code with amendments as displayed in the Residential and Commercial Status of State Energy Code Maps.

State Certifications

Federal law directs states to review and update their building energy codes regarding energy efficiency and submit related certifications. The following is the most recent certification submitted by the state.

States are required by statute to submit certifications within 2 years of the publication of an affirmative determination of a new model energy code. Learn more about the statutory requirements.

Most Recent Submitted Certification

  • Residential: None
  • Commercial: None

Model Energy Code Impacts

Key metrics related to incremental construction costs and consumer energy cost savings.

Energy and Economic Impacts

Model Energy CodeMeasureEnergy Cost Savings
Residential Statewide Impact 
Potential (2024 IECC)
Incremental First Cost of 2024 IECC ($/home)$ 3,365
Annual Energy Cost Savings ($/home)$ 121
Annual Energy Savings (kBtu/home)12,262 
30 year Life Cycle Cost (LCC) Savings ($/home) -$ 1,158
Simple Payback Period (years)27.9
Housing Starts (15 year average)**3,469 
Statewide Total Incremental Cost Impact ($)$ 11,673,185
Statewide First Year Energy Cost Savings  ($)$ 419,749

** Based on 2020 U.S Census, American Housing Survey 15 year average housing starts

Contacts

Primary Contact for State Adoption
Greg Gilbert
Position Title
State Building Official
Organization
Maine Office of the State Fire Marshal
Address

52 State House Station
Augusta, ME 04333
United States

Telephone
Email Address
Secondary Contact for State Adoption
Gregory Day
Position Title
Assistant State Fire Marshal
Organization
Maine Office of the State Fire Marshal
Address

52 State House Station
Augusta, ME 04333
United States

Telephone
Email Address