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 09/10/2025
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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 |
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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 |
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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. Anticipate presenting to AQCAC in December 2025. |
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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 ECO nozzles at gasoline dispensing facilities | | COMAR | 26.11.46 | | Relevant Statutory Deadline | | | Target Effective Date | TBD | | Status | Under Development. The Department plans to present to stakeholders on October 16, 2025 and potentially to AQCAC in December 2025. |
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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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| Number of Air Regulations in Development :5 |
