(1) Pilots shall observe rest period requirements as set out in RCW 88.16.103 as now or hereafter amended. Pilots shall have a mandatory rest period of at least 10 hours with an opportunity for eight hours of uninterrupted sleep after completion of an assignment or multiple assignments.

(2) An assignment is a billable pilotage service, including cancellations and ship movements, regardless of duration.

(3) An assignment begins at call time and ends at check-in time and includes preparation time and travel time to and from the ship in addition to bridge time. Call time allows one to two hours of preparation before the start of travel time to the ship. Check-in time occurs when travel time from the ship is completed. In the Puget Sound Pilotage district travel times are documented in the Puget Sound pilots operating rules and may be reviewed by the board from time to time.

(4) When there are multiple assignments, the combined total duration of the assignments shall not exceed 13 hours. The total duration of multiple assignments shall be measured from the call time before the first assignment to check-in time after the final assignment.

(5) An assignment is a night assignment if any part occurs between 0100 and 0459 hours. After three consecutive nights with night assignments, pilots shall have a mandatory rest period of at least 12 hours, including at least one period between 2000 and 0800 hours.