Regional Consistency Regulations - Amendments

November 3, 2015 U.S. Environmental Protection Agency EPA Docket Center Attn: Docket I.D. No. EPA-HQ-OAR-2014-0616 Mail Code 2821T 1200 Pennsylvania Avenue, NW Washington, DC 20460 Dear Sir or Madam: The Portland Cement Association (PCA) appreciates the opportunity to submit comments related to EPA's Proposed Amendments to the Regional Consistency Regulations. See 80 Fed. Reg. 50,250 (August 19, 2015). PCA is a not-for-profit trade association that represents companies responsible for more than 80 percent of the portland cement production capacity in the United States. It conducts market development, engineering, research, education, technical assistance and public affairs programs on behalf of its member companies. Its mission focuses on improving and expanding the quality and uses of cement and concrete, raising the quality of construction, and contributing to a better environment. PCA members operate in all 50 states and comply with a variety of Clean Air Act (CAA) programs. EPA's proposal to revise the Regional Consistency Regulations to allow inconsistent application of the CAA will have a direct impact on PCA members' operations. Please see the attached comments from PCA outlining reasons why EPA should withdraw its proposed amendments to the Regional Consistency Regulations. Regards, Mike Schon Vice President and General Counsel Portland Cement Association