46 C.F.R. § 113.40-5 General requirements.
Title 46 - Shipping
The position of the rudder, if power-operated, must be shown at the principal steering station. If there is non-follow-up steering control at the alternative steering station, there must be a separate rudder angle indicator system for that station that is electrically independent from each other rudder angle indicator system.
Title 46: Shipping
PART 113—COMMUNICATION AND ALARM SYSTEMS AND EQUIPMENT
Subpart 113.40—Rudder Angle Indicator Systems
§ 113.40-5 General requirements.

