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Clean Air Markets

Regional Haze

Texas SO2 Trading Program

EPA’s Regional Haze Program was created to improve visibility in national parks and wilderness areas. A number of states use participation in EPA’s Cross-State Air Pollution Rule (CSAPR) trading programs to satisfy some of the Regional Haze Rule’s requirements.

In 2017, EPA finalized the Texas SO2 Trading Program to address certain requirements under the Regional Haze Rule specifically for electricity generating units in Texas.

Allocations of allowances from the Texas SO2 Trading Program Supplemental Allowance Pool

Under the Texas SO2 Trading Program regulations, some sources may qualify for allocations from a Supplemental Allowance Pool for a given program year. The spreadsheet below shows the Supplemental Allowance Pool allocations for 2019.

2019 Supplemental Allowance Pool Allocation (Update)(26 K)