Miss. Code Ann. § 69-31-5: Miss. Code Ann. § 69-31-5

The department shall inspect or cause to be inspected at least annually every moisture-measuring device used in commerce in this state, except those belonging to the United States or the state, or any subdivision of either, except as may be requested. The department may inspect or cause to be inspected at the convenience of the department any moisture-measuring device upon a request in writing from the owner.