|(a) Definitions. The following words and terms, when used in this subchapter, shall have the following meanings, unless the context clearly indicates otherwise. All other words and terms shall have the meanings assigned by Parks and Wildlife Code. (1) Off-highway motorcycle--a vehicle meeting the definition in Transportation Code, §502.001(12), that is not registered for use on a public roadway. (2) Public land--Any land on which an off-highway decal is required under Parks and Wildlife Code, §29.003. (b) No person shall operate an off-highway vehicle on public land in this state unless an off-highway decal has been affixed to the off-highway vehicle. (c) An off-highway vehicle decal does not authorize any person to: (1) enter public land or operate an off-highway vehicle on public land if entry or use of an off-highway vehicle is otherwise prohibited; or (2) operate an off-highway vehicle on a public roadway.