Mass. Gen. Laws ch. 7C, § 29
(a) The commissioner shall require a state agency that initiates the construction of a new facility owned or operated by the commonwealth or a renovation of an existing facility owned or operated by the commonwealth when the renovation costs exceed $25,000 and includes the replacement of systems, components or other building elements which affect energy or water consumption to design and construct or renovate the facility in a manner that minimizes the life-cycle cost of the facility by utilizing energy efficiency, water conservation or renewable energy technologies under the following criteria: