Possession authorization
Wis. Stat. § 961.32
in effect(1m)
(a) Persons registered under federal law to manufacture, distribute, dispense or conduct research with controlled substances may possess, manufacture, distribute, dispense or conduct research with those substances in this state to the extent authorized by their federal registration and in conformity with the other provisions of this chapter.
(b) The following persons need not be registered under federal law to lawfully possess controlled substances in this state:
1. An agent or employee of any registered manufacturer, distributor or dispenser of any controlled substance if the agent or employee is acting in the usual course of the agent’s or employee’s business or employment;
2. A common or contract carrier or warehouse keeper, or an employee thereof, whose possession of any controlled substance is in the usual course of business or employment;
3. An ultimate user or a person in possession of any controlled substance pursuant to a lawful order of a practitioner or in lawful possession of a schedule V substance.
4. Any person exempted under federal law, or for whom federal registration requirements have been waived.
5. A person actively engaged in the direct operation or implementation of a drug disposal program that is authorized under s. 165.65 (2) or (3) or is authorized under federal law, as defined in s. 165.65 (1) (a).
(2m)
(a) In this subsection, “certification” means a letter or other official document issued by a physician licensed under s. 448.04 (1) (a) that contains all of the following:
1. The name, address, and telephone number of the physician.
2. The name and address of the patient who is issued the letter or document.
3. The date on which the letter or document is issued.
(b) An individual may possess a cannabidiol product if the individual has certification stating that the individual possesses a cannabidiol product to treat a medical condition, if the certification has an issue date that is no more than one year prior to the possession, and if any expiration date provided by the physician in the certification has not passed. A certification is not required to possess hemp, as defined in s. 94.55 (1), or a prescription drug product that has been approved by the U.S. food and drug administration.
(3)
(a) In this subsection:
1. “Cannabis” means the plant 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.
2. “Hemp” has the meaning given in s. 94.55 (1).
(b) A person who is not otherwise violating s. 94.55 or rules promulgated by the department of agriculture, trade and consumer protection under s. 94.55 may not be prosecuted for a criminal offense under this chapter, or under an ordinance enacted under s. 59.54 (25) or 66.0107 (1) (bm), for any of the following:
1. Planting, growing, cultivating, harvesting, producing, processing, or transporting cannabis that contains a delta-9-tetrahydrocannabinol concentration of the crop of not more than 0.7 percent above the permissible limit for hemp on a dry weight basis or that is grown from hemp seed certified under s. 94.55 (2) (c) or approved for growing by the department of agriculture, trade and consumer protection under s. 94.55 (2) (f).
3. Selling, transferring, importing, exporting, processing, transporting, harvesting, or taking possession of cannabis that has been tested and certified, by the department of agriculture, trade and consumer protection or a person approved by the department of agriculture, trade and consumer protection under s. 94.55 (2) (b) 4g., as meeting the permissible delta-9-tetrahydrocannabinol concentration limit for hemp if the person has no reason to believe that the test certification is incorrect.
4. Possessing cannabis that contains a delta-9-tetrahydrocannabinol concentration of not more than 0.7 percent above the permissible limit for hemp on a dry weight basis if the possessor reconditions or processes the cannabis to a delta-9-tetrahydrocannabinol concentration at or below the permissible limit for hemp with the approval of the department of agriculture, trade and consumer protection of those actions.
4m. Temporarily possessing cannabis during the normal course of processing hemp if the possessor reconditions or processes the cannabis to a delta-9-tetrahydrocannabinol concentration at or below the permissible limit for hemp within a reasonable amount of time.
4r. Possessing cannabis purchased or obtained at retail that contains a delta-9-tetrahydrocannabinol concentration of not more than 0.7 percent above the permissible limit for hemp if the possessor has no reason to believe that the cannabis contains a delta-9-tetrahydrocannabinol concentration above the permissible limit for hemp.
5. Taking samples of cannabis, transporting samples to a testing facility, or testing samples for their delta-9-tetrahydrocannabinol concentration or for the presence of other substances.
(c) A person who violates s. 94.55 or a rule promulgated under s. 94.55 may not be prosecuted under s. 94.55 or this chapter unless the person is referred to the district attorney for the county in which the violation occurred or to the department of justice by the department of agriculture, trade and consumer protection, and may not be prosecuted under an ordinance enacted under s. 59.54 (25) or 66.0107 (1) (bm), unless the person is referred to the local prosecuting authority by the department of agriculture, trade and consumer protection.
(cm) A hemp producer that negligently violates s. 94.55 or a rule promulgated under s. 94.55, as described under s. 94.55 (2g) (a), may not be prosecuted under s. 94.55 or this chapter or an ordinance enacted under s. 59.54 (25) or 66.0107 (1) (bm).
(d) Notwithstanding s. 961.41 (4) (am) 2. a., engaging in an activity described under s. 94.55 (2) (a) does not constitute prima facie evidence of a prohibited representation under s. 961.41 (4) (am) 1. a. or b.
Source: WI Statutes (Official Site)URL: https://docs.legis.wisconsin.gov/document/statutes/961.32Fetched: 10/7/2026