EPA issued a notice of deficiency on May 17, 2005, in which EPA identified problems with Maricopa County's Clean Air Act title V operating permits program and a timeframe for the County to correct these deficiencies. The Maricopa County Air Quality Department submitted corrections to its permit program in quarterly updates beginning in February 2006 and in a final submittal dated October 20, 2006. This notice announces that, based on information provided by Maricopa County Air Quality Department, EPA concludes that Maricopa County has resolved all of the issues identified in the May 17, 2005 Notice of Deficiency. As a result, EPA will not impose sanctions set forth under the mandatory sanctions provisions of the Clean Air Act. In addition, EPA will not promulgate, administer, and enforce a whole or partial operating permit program pursuant to the title V regulations of the Clean Air Act within two years after the date of the finding of deficiency.