Proposed Air & Radiation Regulations
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Proposed Actions provide the full text of proposed regulations and amendments, an estimate of the economic impact of an action on the regulated parties, the agency, other State or local agencies, and the general public. Proposed Actions also detail how the public may provide comments to an agency about a proposed regulation.
All Notices of Proposed Action (NPA) are published in the Maryland Register. Click here for the most current Notice of Public Hearings and Materials. While the Department strives to keep this content up-to-date, this list may not contain all proposed actions as this list is only updated periodically.
Last edited 12/10/2025
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| Regulation Title | Definitions and Control of Sulfur Oxides From Fuel Burning Equipment | | Purpose | Amendments to change the percentage of sulfur in fuel oil for equipment at stationary sources and to add in requirements during ozone season. | | COMAR | 26.11.09.01 and .07 | | Relevant Statutory Deadline | | | Public Informational and Formal Comment Opportunities | Public hearing was held on July 15, 2025 and the commenting period is closed | | Status | Published in the Maryland Register on June 13, 2025 |
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| Regulation Title | Anti-Tampering to Motor Vehicle Emission Control Devices | | Purpose | Repeal record-keeping requirements for vehicle dealers or other businesses regarding vehicle emissions inspections | | COMAR | 26.11.20.02 | | Relevant Statutory Deadline | | | Public Informational and Formal Comment Opportunities | A public hearing will be held in January 2026. | | Status | Presented and approved by AQCAC on September 15, 2025. Scheduled to print in the Maryland Register on December 26, 2025. |
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| Regulation Title | Maryland's CO2 Budget Trading Program / Regional Greenhouse Gas Initiative Amendments | | Purpose | Amendments to 26.09 | | COMAR | 26.09 | | Relevant Statutory Deadline | | | Public Informational and Formal Comment Opportunities | A public hearing will be held on January 6, 2026 at 10:00 a.m. | | Status | Published in the Maryland Register on December 1, 2025 |
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| Regulation Title | Fee Amendments | | Purpose | Amendments to the Air and Radiation Administration Fees for Permits and BEPS aligning with 2025 legislation | | COMAR | 26.11.17, 26.28.03 | | Relevant Statutory Deadline | | | Public Informational and Formal Comment Opportunities | A public hearing will be held on January 5, 2026 at 1:00 p.m. | | Status | Published in the Maryland Register on December 1, 2025 |
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