(a) For purposes of this section, the following definitions apply:
(1) “Cannabis waste” has the same meaning as defined in Section 15000 of Title 4 of the California Code of Regulations.
(2) “Plant waste” means the waste of plant material that meets the definition of “agricultural material,” “green material,” or “vegetative food material” in Section 17852 of Title 14 of the California Code of Regulations.
(b) Plant waste and cannabis waste solely exhibiting the hazardous waste characteristic of toxicity pursuant to paragraph (6) of subdivision (a) of Section 66261.24 of Title 22 of the California Code of Regulations shall be excluded from classification as a hazardous waste.