Energy

HB 437, the Transportation and Climate Alignment Act of 2026, requires Maryland’s Department of Transportation to conduct impact assessments for major highway expansion projects costing over $100 million. These assessments must evaluate greenhouse gas emissions and vehicle miles traveled, and the department must develop a multimodal transportation program (including transit, biking, and pedestrian improvements) to offset emissions from the project. The program must prioritize overburdened and underserved communities affected by the project, aiming for net-zero or negative greenhouse gas emissions when combined with the highway project. This applies to projects not already funded or reviewed before June 30, 2026, and affects highway planning decisions across the state.