On July 20, 2005, EPA proposed a new regulation that would give states the option to develop an emissions trading program to improve visibility in national parks and wilderness areas. EPA’s proposal outlines the process that a state or tribal governments would use to show that an emissions trading program could be used to meet the Clean Air Visibility Rule’s Best Available Retrofit Technology or BART Requirements. EPA will accept comments on the proposed rule for 45 days after it is published in the Federal Register.

• Proposal (PDF)(23 pp, 306 K, About PDF) - Federal Register, Aug 1, 2005

• Fact Sheet - Requirements for an Emissions Trading Program that Could Satisfy Best Available Retrofit Technology Requirements Under EPA's Regional Haze Program (PDF)(3 pp, 60 K, July 2005)