52.329—Rules and regulations.
(a)
On January 14, 1993, the Governor of Colorado submitted revisions to the State's nonattainment new source review permitting regulations to bring the State's regulations up to date with the 1990 Amendments to the Clean Air Act. With these revisions, the State's regulations satisfy the part D new source review permitting requirements for the following nonattainment areas: the Canon City, Lamar, Pagosa Springs, Aspen, Telluride, and Steamboat Springs moderate PM10 nonattainment areas, the Denver/Metro Boulder, Longmont, Colorado Springs, and Fort Collins moderate carbon monoxide nonattainment areas, the Greeley not classified carbon monoxide nonattainment area, and the Denver transitional ozone nonattainment area.
(b)
On January 14, 1993 and on August 25, 1994, the Governor of Colorado submitted revisions to the State's nonattainment new source review permitting regulations to bring the State's regulations up to date with the 1990 Amendments to the Clean Air Act. With these revisions, the State's regulations satisfy the part D new source review permitting requirements for the Denver metropolitan moderate PM-10 nonattainment area.
(c)
A revision to the State Implementation Plan was submitted by the State of Colorado on July 31, 2002. The submittal revises the Common Provisions regulation by adding affirmative defense provisions for source owners and operators for excess emissions during periods of startup and shutdown. The affirmative defense provisions are contained in section II.J. As indicated in 40 CFR 52.320(c)(109), EPA approved the affirmative defense provisions contained in sections II.J.1 through II.J.4 of the Common Provisions regulation, adopted August 16, 2001 and effective September 30, 2001. Section II.J.5 of the Common Provisions regulation, adopted August 16, 2001 and effective September 30, 2001, is disapproved.