Michigan Compiled Laws, Chapter 3. Federal and Interstate Relations § 3.166

Sec. 6. A compact, agreement or arrangement entered into under the authority of this act, may contain provisions authorizing the registration or licensing in another jurisdiction of vehicles located in or operated from a domicile in the other jurisdiction, which vehicles otherwise would be required to be registered or licensed in this state; and in such event the exemptions and privileges extended by the compact, agreement or arrangement shall apply to such vehicles.