DEP rule relating to ambient air quality standards

SB 257 authorizes the West Virginia Department of Environmental Protection (DEP) to implement a rule (45 CSR 08) that establishes ambient air quality standards. This rule, filed on July 23, 2025, defines acceptable levels of air pollutants, directly affecting industries that emit pollution and communities by setting enforceable requirements for air quality. The bill does not change the standards themselves but formally authorizes the DEP to enforce the existing rule.