On and after July 1, 1990, it shall be unlawful for any person, firm, or corporation to offer for sale in this state any dimension lumber stamped according to grade unless it has been stamped by a grading agency licensed by the American Lumber Standards Committee under the auspices of the United States Department of Commerce.
(Code 1981, §2-14-121, enacted by Ga. L. 1990, p. 338, § 1.)