In the event that the functions performed by employees in one department or agency are transferred to another department or agency, the employees performing such functions shall be transferred to the receiving department or agency without impairment of wages, seniority, collective bargaining, civil service or other rights enjoyed at the time of the transfer. Nothing in this section shall prohibit any reduction in workforce otherwise permitted under collective bargaining agreements or civil service rules or regulations.
Mass. Gen. Laws ch. 30, § 9J