| Under the federal regulations of 33CFR Subchapter O, if a vessel equipped with a Type II Marine Sanitation Device enters a body of water where the discharge of treated or untreated sewage is prohibited, which of the following methods of securing the device to prevent the discharge of sewage is ACCEPTABLE if it is impractical to close the seacock and prevent its opening? |
| A) Making an announcement over the public address system advising all concerned that the vessel is entering a "no discharge zone". |
| B) Placing a warning sign on the door to the space enclosing the toilets advising all concerned that the vessel is entering a "no discharge zone". |
| C) Locking the door to the space enclosing the toilets with a padlock or door handle key lock to prevent entry when the vessel is entering a "no discharge zone". |
| D) Placing of tape forming an "X" over toilet and urinal bowls to convey to all concerned that the vessel is entering a "no discharge zone". |
