Requires adding mufflers to MA vehicle inspections; RMV to set rules, issue rejection stickers, and fines for non-compliant mufflers, affecting owners, shops, and enforcement.

Creates a 13-member Massachusetts commission to study infrastructure resilience and deliver a statewide needs assessment and strategic plan by July 31, 2026.

Expands MA 61A tax breaks: owners with two+ noncontiguous parcels totaling 5+ acres qualify if within 10 miles or same municipality, treated as contiguous for benefits.