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Maryland Regulation

MD-Department of the Environment
Regulation Type
Rule #
Rule Title
Ambient Air Quality Standards, Definitions, Reference Conditions, and Methods of Measurement
State Effective Date
Final Federal Register Date
Federal Register Citation #
78 FR 9593
Superseded /
Rescinded Date
1. Revisions to Sections .03, .04, .05, .07 & .08, including the establishment of the PM2.5 and 8-hour ozone AAQS (71 FR 34257). The SIP-effective date is 7/14/06.

2. Revision to COMAR, which incoporates by reference the NAAQS specified in 40 CFR Part 50 and the associated defnitions, reference conditions, and methods of measurement specified in 40 CFR Parts, 50, 51, 53, and 58; and simultaneous removal of COMAR through .04.09. The SIP effective date is 4/12/13.

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