4 Tex. Admin. Code § 10.51
(b) "Industrial hemp" or "hemp" as defined Texas Agriculture Code §121.001 means the plant species Cannabis sativa L. and any part of that plant, including the seeds thereof and all derivatives, extracts, cannabinoids, isomers, acids, salts, and salts of isomers, whether growing or not, with a delta-9 tetrahydrocannabinol concentration of not more than 0.3 percent on a dry weight basis. Industrial Hemp includes varieties of these kinds:
Source Note:The provisions of this §10.51 adopted to be effective June 4, 2020, 45 TexReg 3618.