2017 DC Construction Codes (2015 ICC family + 2014 NEC + 2013 ASHRAE 90.1, DC-amended); DCMR Title 12. Enforced by DC Department of Buildings (DOB), district-wide. Checked on the primary source; the state record was last reviewed 2026-11-12.
DOB states the 2017 DC Construction Codes take effect May 29, 2020, built on 2015 ICC, 2014 NEC and 2013 ASHRAE 90.1 as amended in DCMR Title 12. Some earlier-filed permits may fall under prior editions (Sec. 123); Title 12 DCMR is the official text.
Source: primary document
Statewide layer. County and city amendments sit on top; confirm the local office for the address.
Next code cycle: DOB estimates a 1st Notice of Proposed Rulemaking in Fall 2026 (45-day comment) and final codes late 2027; listening sessions ended Sep 24, 2026; no notice posted as of the code-development page re-read Oct 22, 2026
These apply when the building has the equipment or fits the type named. The frequency is the standard one; your local official can set a stricter one, so confirm it for the address.
2017 DC Construction Codes (2015 ICC family + 2014 NEC + 2013 ASHRAE 90.1, DC-amended); DCMR Title 12. DOB states the 2017 DC Construction Codes take effect May 29, 2020, built on 2015 ICC, 2014 NEC and 2013 ASHRAE 90.1 as amended in DCMR Title 12. Some earlier-filed permits may fall under prior editions (Sec. 123); Title 12 DCMR is the official text.
DC Department of Buildings (DOB), district-wide.
Rulemaking notice Fall 2026. Next code cycle: DOB estimates a 1st Notice of Proposed Rulemaking in Fall 2026 (45-day comment) and final codes late 2027; listening sessions ended Sep 24, 2026; no notice posted as of the code-development page re-read Oct 22, 2026
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