2021 International Building Code with Maryland amendments (COMAR 09.12.51, Maryland Building Performance Standards), effective May 29, 2023. Enforced by Local jurisdictions enforce; Dept of Labor, Division of Labor and Industry (Building Codes Administration) administers the standard. Checked on the primary source; the state record was last reviewed 2026-11-12.
Rule also adopts the 2021 IRC and 2021 IECC. Maryland substitutes its own Accessibility Code for IBC Ch.11, bars local amendments weakening residential sprinkler provisions, and requires hotel guest-room master power control devices in new hotels. Local jurisdictions implement within 12 months of the effective date.
Source: primary document
Statewide layer. County and city amendments sit on top; confirm the local office for the address.
Proposed update to 2024 IBC, IRC and IECC (COMAR 09.12.51.03-.04, 53:13 Md. R. 593, Jun 26, 2026; comments closed Jul 27, 2026) still pending in the Sep 4, 2026 Register; no final action or effective date confirmed; 2021 editions remain in force
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.
2021 International Building Code with Maryland amendments (COMAR 09.12.51, Maryland Building Performance Standards), effective May 29, 2023. Rule also adopts the 2021 IRC and 2021 IECC. Maryland substitutes its own Accessibility Code for IBC Ch.11, bars local amendments weakening residential sprinkler provisions, and requires hotel guest-room master power control devices in new hotels. Local jurisdictions implement within 12 months of the effective date.
Local jurisdictions enforce; Dept of Labor, Division of Labor and Industry (Building Codes Administration) administers the standard.
Nothing is scheduled. The rule above stays in force until the state adopts a newer edition or amends the program; AHJ Radar re-checks the source weekly.
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