Section 60. The commissioner of administration shall convene a working committee made up of his own designee, a designee of the commissioner of education and a designee of the local government advisory committee to establish guidelines for purposes of reimbursing cities and towns for the reasonable costs associated with the implementation of sections forty-nine and fifty of this chapter and section thirty-eight of chapter seventy-one. Such guidelines shall be filed by the working committee with the house and senate committees on ways and means and shall become effective only upon approval by said committees. Reimbursements of costs made pursuant to such guidelines shall constitute complete satisfaction of the obligation of the commonwealth to assume such costs pursuant to any general or special law.