452 CMR 3.00 is promulgated pursuant to M.G.L. c. 152, sec. 5, as most recently amended, for the purpose of carrying out the provisions of M.G.L. c. 152. The Workers' Compensation Trust Fund (hereinafter the Fund) established by M.G.L. c. 152, sec. 65, shall be administered, and compensation paid, in accordance with the rules as herein published or subsequently amended, and with periodic Circular Letters issued by the Department.