To direct the Secretary of Transportation to issue certain regulations to update the definition of motorcycle, and for other purposes.

This bill directs the Secretary of Transportation to update the federal definition of "motorcycle" in transportation regulations within 120 days of enactment. The new definition specifies that a motorcycle must be a three-wheeled vehicle designed to be ridden while sitting astride, steered by handlebars, and capable of exceeding 30 mph. It directly affects motorcycle manufacturers, regulators, and riders by aligning federal safety standards with this updated definition in the Code of Federal Regulations. The change ensures regulatory consistency for vehicles meeting these specific design and performance criteria.