Neb. Rev. Stat. § 71-3809

(1) No person shall sell, offer for sale, provide, or distribute an adulterated kratom product in the State of Nebraska. (2) A product shall be deemed adulterated if: (a) It contains any kratom alkaloid or metabolite, including 7-hydroxymitragynine, and does not meet the definition of a kratom product under section 71-3802 ; or (b) The kratom product is combined with a dangerous nonkratom substance that contains a poisonous or otherwise deleterious nonkratom ingredient, including, but not limited to, any substance listed as a controlled substance under the laws of this state or federal law. (3) If the department has a reasonable belief that a product may be an adulterated kratom product, the department may require the person selling, providing, or distributing the product to obtain an independent third-party test of the product by a laboratory of the department's choosing. A person shall not sell, provide, or distribute any product undergoing such testing until the test results verify that such product is not adulterated.