The Houston-Galveston Brazoria (HGB) area includes the counties of Brazoria, Chambers, Fort Bend, Galveston, Harris, Liberty, Montgomery, and Waller come under the nonattainment status for ground-level ozone under the 8-hour standard). As of 2016, facilities in the HGB area are required to participate in the Mass Emissions Cap and Trade (MECT) Program if their facilities have the potential to emit (PTE) over 10 tons of NOx.
Regional Clean Air Incentives Market (RECLAIM) is an emissions trading program operating in the state of California since 1994. Under the trading program, hundreds of polluting facilities are required to cut their emissions of nitrogen oxide (NOx) and sulphur oxide (SOx). This program is specific to the greater Los Angeles area.
The Cross-State Air Pollution Rule (CSAPR) a program run by the United States Environmental Protection Agency (EPA) that requires certain states to reduce power plant emissions that contribute to ozone and/or fine particle pollution that cross the borders into other states. The Cross-State Air Pollution Rule (CSAPR) sets new standards for power plants that emit nitrous oxide (NOx) and sulphur dioxide (SO2).
The Acid Rain Program is a market-based initiative taken by the United States Environmental Protection Agency in an effort to reduce overall atmospheric levels of sulphur dioxide and nitrogen oxides, which cause acid rain. The Acid Rain Program was established under Clean Air Act. The SO2 program sets a permanent cap on the total amount of SO2 that may be emitted by electric generating units in United States.