46 C.F.R. § 185.608 Fuel shutoff valves.
Title 46 - Shipping
Remote fuel shutoff stations must be marked in clearly legible letters at least 25 millimeters (1 inch) high indicating purpose of the valve and direction of operation.
Title 46: Shipping
PART 185—OPERATIONS
Subpart F—Markings Required
§ 185.608 Fuel shutoff valves.

