Whenever producers or handlers of peanuts regulated by a marketing order issued by the commission pursuant to this article are required to
comply with minimum quality, condition, size, or maturity regulations, no person, except as otherwise provided in such order, shall process, distribute, or otherwise handle any of such peanuts from any source, whether produced within or outside this state, which peanuts do not meet such minimum requirements applicable to producers or handlers of such peanuts in this state, provided that such regulations shall not apply to any peanuts which have been produced outside of this state and are in transit on the effective date of the regulations.