Maritime law. Admiralty Law cum onshore. Not good but there you have it. What if your primary residence is a yacht or houseboat? Does the Constitution guaranteeing the prohibition of warrant less searches and seizures of your home still apply? If not why not? We had this problem touring in a 40 foot ex school bus. Crown Supercoach. Primary residence. Continuous Traveler on my Oregon Drivers License. The Bus was registered as a non commercial motor home. A park ranger politely asked to search the inside. I showed him the sign on the door saying "Primary Residence Search Warrant Required" He looked at us funny. I gave him a very polite 10 minute background sit rep on the Constitution. Once he understood he apologized and left. It is a matter of knowing.