2019-09337: Approval and Promulgation of Air Quality Implementation Plans; Maryland; Infrastructure Requirements for the 2010 Sulfur Dioxide National Ambient Air Quality Standard
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The Environmental Protection Agency (EPA) is proposing to approve portions of a state implementation plan (SIP) submission from Maryland for the 2010 sulfur dioxide (SO<INF>2</INF>) National Ambient Air Quality Standard (NAAQS or standard). Whenever EPA promulgates a new or revised NAAQS, states are required to make a SIP submission showing how the existing approved SIP has all the provisions necessary to meet the requirements of the new or revised NAAQS, or to add any needed provisions necessary to meet the revised NAAQS. These SIP submissions are commonly referred to as "infrastructure" SIPs. The infrastructure requirements are designed to ensure that the structural components of each state's air quality management program are adequate to meet the state's responsibilities under the Clean Air Act (CAA). EPA is proposing to approve Maryland's submittal addressing certain infrastructure requirements for the 2010 SO<INF>2</INF> NAAQS in accordance with the requirements of section 110 of the CAA, with the exception of the portion of the submittal pertaining to interstate transport.
The agency’s own summary, as published.
What this changes
Amends 1 part of the Code of Federal Regulations — the standing rules this notice rewrites.
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