On all vessels, regardless of voyage duration, the entire steering gear, whistle, and bridge-engine room communication systems must be tested within 12 hours of departure.

All emergency lighting and power systems, regardless of source, must be operated and tested at least once each week under load for at least 2 hours.

Where motor-propelled lifeboats are carried, regardless of length or person capacity, each lifeboat motor must be operated ahead and astern at least 3 minutes once a week.

All of the above.