Relating to authorizing the Department of Environmental Protection to promulgate a legislative rule relating to requirements governing water quality standards.

HB 4213 authorizes West Virginia's Department of Environmental Protection (DEP) to finalize and implement a specific water quality standards rule (47 CSR 02) after revisions to address legislative committee feedback. The rule, originally filed in 2025 and modified following objections, directly affects the DEP's Division of Water and Waste Management, which will use it to regulate water quality standards. This bill does not change the standards themselves but formally approves the rulemaking process for existing water quality requirements. It ensures the rule meets legal requirements after review by the Legislative Rule-Making Review Committee.