Air & Radiation Regulations in Development
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Below is a list of air regulations which are in the process of being developed, reviewed, or revised by the Department. Notices of stakeholder meetings and associated materials may be found here .
Last modified 6/4/2026
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| Program | Climate Change Program/Air Quality Planning Program | | Regulation Title | Zero-Emission Heating Equipment Standard | | Purpose | New regulation to set NOx and GHG emissions standards for residential-scale space and water heating equipment manufactured for installation in Maryland | | COMAR | TBD | | Relevant Statutory Deadline | | | Target Effective Date | TBD | | Status | Under Development. Anticipate presenting to AQCAC in late 2026 |
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| Program | Climate Change | | Regulation Title | Clean Heat Standard | | Purpose | New regulation for a market-based performance standard on heating fuel providers to reduce GHG emissions from the buildings sector | | COMAR | TBD | | Relevant Statutory Deadline | | | Target Effective Date | TBD | | Status | Under Development. Anticipate presenting to AQCAC in late 2026 |
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| Program | Air Quality Planning | | Regulation Title | Consumer Products | | Purpose | Amendments to include updates from the Ozone Transport Commission’s (OTC) Phase V Model Rule | | COMAR | 26.11.32 | | Relevant Statutory Deadline | | | Target Effective Date | TBD | | Status | Under Development. Stakeholder process to begin summer/fall of 2026 |
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| Program | Air Quality Planning | | Regulation Title | Air Quality Controls at Gasoline Dispensing Facilities | | Purpose | New chapter to establish vapor controls using low permeation hoses and enhanced conventional nozzles at gasoline dispensing facilities | | COMAR | 26.11.47 | | Relevant Statutory Deadline | | | Target Effective Date | TBD | | Status | Under Development. The Department held two stakeholder meetings on October 16, 2025 and February 11, 2026. The Department tentatively plans to present to AQCAC at the end of 2026/beginning of 2027 |
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| Program | Radiological Health Program | | Regulation Title | State Radiation Control Fund Amendment | | Purpose | Amendments to 26.12.03 Update fee tables to current year and include the required Consumer Price Index | | COMAR | 26.12.03 | | Relevant Statutory Deadline | | | Target Effective Date | TBD | | Status | Under Development |
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| Program | Air Quality Planning | | Regulation Title | NOx RACT Standards for Municipal Waste Combustors | | Purpose | Amend existing regulations and review federal emission guideline standards | | COMAR | 26.11.08.10 | | Relevant Statutory Deadline | | | Target Effective Date | TBD | | Status | Under Development. The Department tentatively plans to present to AQCAC at the beginning of 2027. |
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| Number of Air Regulations in Development :6 |
