46 C.F.R. § 122.320 Steering gear, controls, and communication system tests.
Title 46 - Shipping
The master of a vessel shall have examined and tested the steering gear, signaling whistle, propulsion controls, and communication systems of the vessel prior to getting underway for a voyage, except that such examination and testing need not be conducted more than once in any 24 hour period.
Title 46: Shipping
PART 122—OPERATIONS
Subpart C—Miscellaneous Operating Requirements
§ 122.320 Steering gear, controls, and communication system tests.

