Code of Federal Regulations Title 33. Navigation and Navigable Waters § 33.159.7 Requirements for vessel operators

(1) An operable Type II or III device that has a label on it under § 159.16 or that is certified under § 159.12 or § 159.12a;  or

(2) An operable Type I device that has a label on it under § 159.16 or that is certified under § 159.12, if the vessel is 19.7 meters (65 feet) or less in length.

(1) Closing the seacock and removing the handle;

(2) Padlocking the seacock in the closed position;

(3) Using a non-releasable wire-tie to hold the seacock in the closed position;  or

(4) Locking the door to the space enclosing the toilets with a padlock or door handle key lock.

(1) Closing each valve leading to an overboard discharge and removing the handle;

(2) Padlocking each valve leading to an overboard discharge in the closed position;  or

(3) Using a non-releasable wire-tie to hold each valve leading to an overboard discharge in the closed position.