In May 2017, Massachusetts further amended their 2015 IECC / ASHRAE 2013 energy codes while finalizing their adoption of the other 2015 I-codes. Two substantial amendments were made to the state's base code to add: (1) Solar ready roof requirements for residential and commercial new construction and additions of 3 stories or less; and (2) COMcheck submittal requirements with permit applications for new commercial construction (completed COMcheck Envelope, Lighting, and Mechanical Compliance Certificates as well as Plan Review Inspection Checklist). Electric vehicle ready provisions for residential and commercial new construction were considered but ultimately not included in this update.
NEW: Senate Bill 1935 would establish a net zero energy building definition to be completed within 1 year of bill passing and a net zero energy stretch code to be in full effect by 2030. This bill would require a tiered implementation plan to be published within 3 years and holds clauses for prioritizing environmental justice and regional renewable energy generation. It is currently being heard in the legislature. Massachusetts is also reviewing the 2018 IECC energy code and may adopt it in the next legislative cycle in conjunction with advancing its stretch code.