Section 6. The secretary may, subject to the approval of the commissioner of administration, apply for and accept on behalf of the commonwealth any funds, including grants, bequests, gifts or contributions, from any person. Such funds shall be deposited in a separate account with the state treasurer and received by him on behalf of the commonwealth. All such funds may, subject to rules and regulations promulgated by the commissioner of administration, be expended by the secretary, in accordance with law.