2019-03545: Approval and Promulgation of Air Quality Implementation Plans; Colorado; Revisions to Regulation Number 3
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The Environmental Protection Agency (EPA) is proposing approval of State Implementation Plan (SIP) revisions submitted by the State of Colorado on February 25, 2015. We are also proposing approval of two SIP revisions submitted by the State of Colorado on May 24, 2017. These SIP revisions are necessary for Colorado to incorporate current federal prevention of significant deterioration (PSD) and nonattainment new source review (N-NSR) regulations. The intended effect of this action is to strengthen Colorado's SIP. The EPA is taking this action pursuant to section 110 of the Clean Air Act (CAA).
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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