Mass. Gen. Laws ch. 29 § 9D
Whenever it appears probable to any officer having charge of any office, department or undertaking, that amounts to be received from the federal government or any other sources for the purposes of such office, department or undertaking will be less than the amounts previously estimated to be received from such sources, such officer shall immediately notify the secretary of administration and finance and the house and senate committees on ways and means of such anticipated decrease in estimated revenue, and the secretary of administration and finance shall include such decrease in revenue in the secretary's determination of budgeted revenues under section 5B and the deficiency, if any, reported under the previous section.
Mass. Gen. Laws ch. 29, § 9D