🔍 Key Concepts

• Oil Pollution Regulations in 33 CFR and 46 CFR • Difference between vessels on a foreign voyage and those not on a foreign voyage • Record-keeping and retention periods for required logbooks (like the Oil Record Book)

💭 Think About

• Ask yourself: Does the U.S. require shorter or longer retention for pollution-related records, considering enforcement and investigations? • Think about how long an inspection or investigation might reach back to check for past oil transfer or discharge entries. • Compare typical retention periods for other official ship’s records—are they usually measured in 1, 2, 3, or 4 years?

✅ Before You Answer

• Verify in 33 CFR or 46 CFR the specific section describing Oil Record Book requirements for vessels not on foreign voyages. • Make sure you distinguish between carriage requirement (must have the book) and retention period (how long to keep it on board). • Confirm that the period applies from the date of the last entry in the Oil Record Book, not from when the book was first opened.