Wisconsin Statutes Police Regulations (Ch. 163 to 177) § 168.06. Powers

(1) For the purposes of administering this subchapter, inspectors may take samples of gasoline, gasoline-alcohol fuel blends, kerosene, other refined oils, fuel oils and petroleum distillates for tests and make inspections at any points within or without this state, and may open any original container containing gasoline, gasoline-alcohol fuel blends, kerosene, other refined oils, fuel oils and petroleum distillates and take a true sample of not less than 8 ounces of the contents thereof, even though the original containers may still be in the possession of a common or contract carrier, provided the opening and sampling does not unduly inconvenience or hamper the transportation of the products. After the original containers are opened and sampled the same shall be resealed with seals furnished by the department for such purposes. The authority conferred by this section shall be in addition to, and not in limitation of, any of the provisions of s. 168.05.

(2) If any petroleum product is emptied or transferred into any container in which is contained any other grade of petroleum product, then the entire commingling shall be deemed uninspected and a sample of such commingled petroleum product shall be taken before such commingled petroleum product is removed from such container, sold, offered for sale or used.

(3) Notice of such commingling of any petroleum products shall be given in the same manner and subject to the same conditions as notice of the receipts of petroleum products as provided in s. 168.05. The sample of such commingled petroleum products shall be taken by the inspector within a reasonable length of time, as defined and set forth in s. 168.05, after notice. If such inspector does not take such sample within such time, the commingler shall take a true sample of not less than 8 ounces of the commingled petroleum products. The taking, sealing and holding of such sample by the commingler shall, so far as applicable, be governed by the provisions of s. 168.05 relating to the same by a person receiving a petroleum product.