WAC 296-115-070
WAC 296-115-070. Rules of navigation
The operation and navigation of all charter vessels must be in strict accordance with the United States Coast Guard Navigation Rules International/Inland, Commandants Instruction M16672.2D as now adopted, or legally amended by the United States Coast Guard.
(1) A copy of the United States Coast Guard Navigation Rules International/Inland, Commandants Instruction M16672.2D, must be on board all charter vessels at all times when the vessel is under way.
(2) At least annually, where applicable, the operator of each vessel must "swing the compass" to determine the actual compass readings in relation to true compass headings, and must maintain a record on board the vessel.