46 C.F.R. § 108.643 Rudder orders.
Title 46 - Shipping
At each steering station, the direction which the wheel or steering device must be moved for right rudder or left rudder must be marked in letters of contrasting color to the background on the wheel or steering device or in a place that is directly in the helmsman's line of vision to indicate “RIGHT RUDDER” and “LEFT RUDDER”.
Title 46: Shipping
PART 108—DESIGN AND EQUIPMENT
Subpart G—Equipment Markings and Instructions
§ 108.643 Rudder orders.
