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Current Energy Code Status

Residential Commercial
Current State Code 2015 IECC ASHRAE 90.1-2013
State Amendments Yes Yes
Equivalent Code* 2018 IECC 90.1-2019
Amendments Efficiency Impact
(Compared to Model Adopted Code)
4.10% 8.20%
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

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 ($/home)$ 3,469
Annual Energy Cost Savings ($/home)$ 371
Annual Energy Savings (kBtu/home)7,836
30 year Life Cycle Cost (LCC) Savings ($/home) $ 2,604
Simple Payback Period (years)9.3
Housing Starts (15 year average)**314
Statewide Total Incremental Cost Impact ($)$ 1,089,266
Statewide First Year Energy Cost Savings  ($)$ 116,494

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

Contacts

Primary Contact for State Adoption
Christopher Bailey
Position Title
Deputy Chief Building Official; Chair, Construction Codes
Organization
District of Columbia Department of Buildings
Address

1100 4th St SW
Washington, DC 20024
United States

Telephone
Secondary Contact for State Adoption
Casey Studhalter
Position Title
Chair, Green Construction and Commercial Energy TAG
Organization
Department of Energy and Environment
Address

1200 First St NE
5th Floor
Washington, DC 20002
United States

Telephone
Email Address