(a) If an employer of migratory or seasonal agricultural labor enters into a contract or agreement with an independent farm labor contractor engaging in interstate recruitment of farm labor as defined in the federal Farm Labor Contractor Registration Act, 7 U.S.C. § 2041 et seq., that employer shall enter into such contract or agreement only after making reasonable efforts to assure that such independent farm labor contractor is in possession of a duly issued certificate of registration from the United States Secretary of Labor pursuant to the Farm Labor Contractor Registration Act.

(b) A good faith presentation to an employer of migratory or seasonal agricultural labor of a prima facie valid certificate of registration under the Farm Labor Contractor Registration Act shall satisfy the obligations imposed upon such employer under this section.