Overview of haze-forming pollution and the EPA's Regional Haze rule to reduce haze in national parks and wilderness areas.
Regional Haze SIP Appendices, February 25, 2009
A list of the appendices for this revision to the State Implementation Plan (SIP) for air quality.
Regional Haze: CENRAP/CENSARA
Texas belongs to the Central Regional Air Planning Association and Central States Air Resource Agencies—nine states that work together reducing regional haze.
SIP Revision: Regional Haze
The regional-haze revision to the State Implementation Plan for air quality is the plan Texas must submit to the U.S. Environmental Protection Agency to show how the state will reduce regional haze in the air to natural background conditions.