Department of the Environment - Federal Environmental Policy - Reporting

HB 663 requires Maryland's Department of the Environment to report to the state legislature on changes in federal greenhouse gas emissions policies. Starting July 1, 2026, and every six months thereafter, the department must report any legally validated federal policy changes - including court-approved repeals of vehicle or stationary source emissions standards - and detail Maryland's response to those changes. The bill specifically mandates that reports cover policy shifts since January 1, 2024, for the first report, and each subsequent report must address changes from the prior six-month period. This reporting requirement expires on May 31, 2029, after a three-year term. The bill directly affects state environmental agencies and the General Assembly, creating a formal process to track federal regulatory shifts impacting climate policy.