Question 51

The Correct Answer is B. The operator of each vessel engaged in a vessel-to-vessel oil transfer operation must keep a signed copy of the declaration of inspection for **1 month** (33 CFR § 156.150(a)(3)). This requirement ensures that the required safety checks and procedures (documented in the Declaration of Inspection) were completed before and during the transfer and provides a reasonable window for regulatory review following the operation. **Why the other options are incorrect:** * **A) 10 days:** This period is too short according to the regulations (33 CFR § 156.150(a)(3)); the required retention period is 1 month. * **C) 6 months:** This period is longer than required by the regulations. While retaining records for a longer period is generally acceptable, it is not the minimum regulatory requirement for this specific document. * **D) 1 year:** This period is significantly longer than the minimum requirement set forth in the regulations (33 CFR § 156.150(a)(3)).