What does the term, "cargo tank length", as used in part 157 of the Pollution Regulations, mean?

Correct Answer: Option A — length from the forward bulkhead of the forwardmost cargo tanks to the after bulkhead of the aftermost cargo tanks

Under MARPOL Annex I and 33 CFR 157, cargo tank length is officially defined as the extreme longitudinal distance measured from the forward bulkhead of the forwardmost cargo tank to the aft bulkhead of the aftmost cargo tank.