Changes

The only nationwide law (Code of Federal Regulations) that prohibits hitchhiking is 36 CFR 4.31 which states that hitchhiking is illegal on any property under jurisdiction of the Department of the Interior: National Park Service. This includes but is not limited to National Parks, National Scenic Byways, and National Recreation Areas. This law is often amended to allow hitchhiking at the discretion of each park. Check with the park's respective state article for information

Look to the map pictured above which indicates each state's laws. Most often, the laws state that the hitchhiker may not "solicit a ride" "on a roadway". The word roadway is usually defined in state statute books as "exclusive of a shoulder" or "the traveled portion of the highway", making these statutes easy to circumvent.