Definition
The application of the most advanced methods, systems, and techniques for eliminating or minimizing discharges and emissions on a case-by-case basis as determined by EPA. BACT represents an emission limit based on the maximum degree of reduction of each pollutant as described in regulations under the Clean Air Act (CAA). The determination of BACT takes into account energy, environmental, economic effects, and other costs.
See also:
Air Quality Standards
The level of selected pollutants set by law that may not be exceeded in outside air. Used to determine the amount of pollutants that may be emitted by industry.
Emission
The release or discharge of a substance into the environment. Generally refers to the release of gases or particulates into the air.
Emission Standards
Government standards that establish limits on discharges of pollutants into the environment (usually in reference to air).