The EPA's Clean Air Excellence Awards Program is open to both public and private entities. There are five categories in which a program, project, or technology may be entered: Clean Air Technology; Community Action; Education/Outreach; Regulatory/Policy Innovations; Transportation Efficiency Innovations. Entries are limited to efforts related to air quality in the United States. All submissions of entries for the Clean Air Excellence Awards Program must be emailed or postmarked by 12 September 2014. Additional entry information can be found here.