33 C.F.R. § 183.562 Metallic fuel lines.
Title 33 - Navigation and Navigable Waters
(a) Each metallic fuel line that is mounted to the boat structure must be connected to the engine by a flexible fuel line. (b) Each metallic fuel line must be attached to the boat's structure within four inches of its connection to a flexible fuel line.
Title 33: Navigation and Navigable Waters
PART 183—BOATS AND ASSOCIATED EQUIPMENT
Subpart J—Fuel Systems
Manufacturer Requirements
§ 183.562 Metallic fuel lines.
