RTC §23701a: (a) Labor, agricultural, or horticultural organizations other than cooperative organizations described in Section 24404 or 24405 (unless the cooperative organization is determined by the Internal Reve

(a) Labor, agricultural, or horticultural organizations other than cooperative organizations described in Section 24404 or 24405 (unless the cooperative organization is determined by the Internal Revenue Service to be an organization described in Section 501(c)(5) of the Internal Revenue Code of 1954, as amended). For purposes of this section, the term “agricultural” includes the art or science of cultivating land, harvesting crops or aquatic resources, or raising livestock. (b) The amendments to this section by the act adding this subdivision shall be applied in the computation of taxes for taxable years beginning on or after January 1, 1983.