Mass. Gen. Laws ch. 29 § 29B
The secretary of administration and finance shall make, and may from time to time amend, rules and regulations governing the procurement and administration of contracts with organizations providing social, rehabilitative, health or special education services. Such rules and regulations shall not be subject to chapter 30A. No person employed by an organization providing social, rehabilitative, health or special education services as defined above shall directly or indirectly supervise a temporary or permanent employee of the commonwealth. Such contracts shall not be written or used by any department, office, agency, board, commission or institution of the commonwealth to procure full or part-time personal services or equipment to be used by such department, office, agency, board, commission or institution, or any goods or services not required in the direct provision by the contractor of social, rehabilitative, health, or special education services to populations being served by the contracting department, office, agency, board, commission or institution.
Mass. Gen. Laws ch. 29, § 29B