Section 74. There shall be a commission for the rehabilitation of handicapped persons to be known as the Massachusetts rehabilitation commission, in this section and in sections seventy-five to eighty-four, inclusive, called the commission. The commission shall cooperate with all federal agencies in the administration of 29 USC 720, relating to the rehabilitation of handicapped persons, and may expend, subject to appropriation, such state, federal or other funds as are available for the rehabilitation, employment, and independent living needs of handicapped persons.