Mich. Comp. Laws § 259.79a

Sec. 79a. The commission may cause an aircraft to be inspected at any time to determine its compliance with the registration requirements of this act. The owner, operating agency, or airman shall give the inspector or officer representing the commission unhindered and uninterrupted access to the aircraft and to the shelter or field where the aircraft is located in order to conduct the inspection provided for in this section.