Indiana Code Title 16. Health § 16-44-2-11

Sec. 11. (a) The state department or any authorized agent of the state department may take samples of petroleum products for tests, make inspections at any points inside or outside Indiana, open any original container containing petroleum products, and take a true sample of not less than sixteen (16) ounces of the contents, even though the original container may still be in the possession of a common or contract carrier if opening and sampling does not unduly inconvenience or hamper the transportation of the products.  The state department or any authorized agent of the state department may not take a sample that exceeds sixty-four (64) fluid ounces.

(b) If an original container is opened and sampled under subsection (a), the container shall be resealed with seals furnished by the state department or any authorized agent of the state department.