Section 71D. Subject to appropriation, the director of career services, in coordination with the secretary and with any other appropriate agency, shall establish a reemployment assistance program to provide counseling, placement, training, and any other services deemed necessary, to employees terminated in plant closings and partial closings which will lead to the reemployment of said employees. Such services shall be provided either at a plant closing site, at local offices of the department of career services or at a site provided by any other appropriate agency. Said reemployment assistance program shall be administered by the director of career services. Participation in said program when said program is available shall be a requirement for eligibility for reemployment assistance benefits established pursuant to section seventy-one F.