Approval and Promulgation of Air Quality Implementation Plans; CO; Designation of Areas for Air Quality Planning Purposes, Lamar and Steamboat Springs

On August 5, 2004 EPA published a direct final rule (69 FR 47366) approving, and an accompanying proposed rule (69 FR 47399) proposing to approve a revision submitted by the State of Colorado on July 31, 2002, for the purpose of redesignating the Lamar, Colorado and Steamboat Springs, Colorado areas from nonattainment to attainment for particulate matter with an aerodynamic diameter less than or equal to a nominal 10 micrometers (PM<INF>10</INF>) under the 1987 standards. In the direct final rule, EPA stated that if adverse comments were received by September 7, 2004, the rule would be withdrawn and not take effect. EPA subsequently received adverse comments. EPA will summarize and respond to the comments received based on the proposed action published on August 5, 2004 (69 FR 47399). EPA will not institute a second comment period on this action.