Relating to authorizing the Department of Environmental Protection to promulgate a legislative rule relating to ambient air quality standards.

HB 4206 authorizes West Virginia's Department of Environmental Protection to implement a specific legislative rule (45 CSR 08) concerning ambient air quality standards, which was filed on July 23, 2025. This procedural bill does not change air quality standards but grants the department legal authority to enforce the existing rule. It directly affects the department's regulatory process for managing air quality compliance. The bill serves as a formal authorization for the rule already proposed, with no substantive policy changes to air quality requirements.