Any marketing, development, research or promotion program promulgated under provisions of this act may provide for exemption of, or allow suitable adjustments or credits to, producers, processors, buyers or other affected persons who are required by a Federal, State or multistate program to pay an assessment of a like amount under such program; provided, that any affected person who obtains a refund of his assessment under such a Federal, State or multistate program shall not be exempt. The secretary shall determine the conditions, procedures and forms under which such exemption may be granted.
N.J.S. § 4:10-54.1