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Overview of haze-forming pollution and the EPA's Regional Haze rule to reduce haze in national parks and wilderness areas.
A list of the appendices for this revision to the State Implementation Plan (SIP) for air quality.
Rulemaking related to Best Available Retrofit Technology and the Clean Air Interstate Rule to reduce regional haze.
The Regional Haze State Implementation Plan (SIP) revision is the plan Texas must submit to the United States Environmental Protection Agency (EPA) to show how the state will reduce regional haze in the air to natural background conditions.