In accordance with international MARPOL Annex V regulations and federal regulations under 33CFR Subchapter O, the discharge or disposal of garbage on vessels of 400 gross tons and above engaged in commerce requires recordkeeping. Which of the following discharge or disposal operations requires a detailed description of the contents of the garbage?

Correct Answer: Option B — Discharge overboard to sea.

MARPOL Annex V requires vessels of 400 gross tons and above to maintain a Garbage Record Book. When garbage is discharged overboard, the entry must include the date, time, position, category of garbage, and a detailed description of the estimated amount and contents to ensure compliance with international environmental discharge standards.