Mass. Gen. Laws ch. 22C § 28A
Notwithstanding the provisions of sections forty-five and forty-six of chapter thirty, each officer in grade of lieutenant in the department of state police shall receive a base salary of fifteen point five percent greater than the regular salary payable to the next subordinate grade and all other commissioned officers and staff officers shall receive a base salary nine percent greater than the regular salary payable to the next subordinate grade, in accordance with a schedule submitted by the commissioner of administration to the house and senate committees on ways and means. The commissioner of administration in consultation with the colonel of state police shall establish procedures for a review of said salary schedule and shall submit recommendations for adjustments in subsequent years to the house and senate committees on ways and means.
Mass. Gen. Laws ch. 22C, § 28A