SIP Addressing Emissions During SSM and SIP Discrepancies in DCMR Chapters 1 and 2

The Environmental Protection Agency (EPA) is proposing to approve a state implementation plan (SIP) revisions submitted by the Department of Energy and Environment (DOEE) on behalf of the District of Columbia (DC). The revisions pertain to creating a synthetic minor permit program and clarifying its general authorities to protect air quality for the District of Columbia. The intended effect of this action is to enable DC to create federally enforceable synthetic minor permit conditions for sources of criteria pollutants pursuant to Section 110 of the Clean Air Act (the ‘‘Act’’). This action is being taken under the Clean Air Act (CAA).