The EPA is taking final action to extend the deferral of the effective date of the 8-hour ozone National Ambient Air Quality Standard (NAAQS) designation for the Denver Early Action Compact (EAC) from September 14, 2007 to November 20, 2007. The EAC areas have agreed to reduce ground-level ozone pollution earlier than the Clean Air Act (CAA) requires. On November 29, 2006, EPA extended the deferred effective date for the Denver EAC area from December 31, 2006, to July 1, 2007. In that final rulemaking, EPA noted that there was litigation regarding the deferral of the effective date for the Denver EAC and that the parties were discussing settlement. Thus, in the interest of maintaining the status quo while settlement discussion proceeded, EPA issued a brief further deferral of the effective date of the nonattainment designation until September 14, 2007. The parties are continuing settlement discussions. EPA is issuing at this time a short further deferral of the effective date of Denver's designation for the 8-hour ozone standard from September 14, 2007 to November 20, 2007.