SECTION 1. Chapter 448 of the acts of 2016 is hereby amended by inserting after section 6 the following section:- 

Section 6A. The department of energy resources, in consultation with the executive office for administration and finance, the department of environmental protection, and the intergovernmental electric vehicle infrastructure coordinating council established in section 81 of chapter 179 of the acts of 2022, shall conduct, publish and periodically update a study of the advantages and disadvantages of transitioning to clean energy the vehicles owned or leased by municipalities, regional school districts and regional transit authorities authorized pursuant to chapter 161B.  The study shall include, but not be limited to: (a) an analysis of the cost of such a transition together with possible methods of meeting such costs, including, but not limited to, state financial support, federal financial support, and procurements by regional planning agencies and other entities; (b) an analysis of the availability, sustainability, and suitability of zero-emission motors or hybrid motors for use in the types of vehicles owned or leased by municipalities, regional school districts, and regional transit authorities; and (c) recommendations of possible exemptions from such transition requirements of certain vehicles and the justifications for such possible exemptions.  The department of energy resources shall publish the study on its website not later than 18 months after the effective date of this section and shall thereafter publish revisions of the study on its website not less than every 3 years.  The study and subsequent revisions shall be submitted to the clerks of the senate and house of representatives, the joint committee on transportation and the joint committee on telecommunications, utilities and energy.