The regulations regarding Oil Record Books do not apply to MODU's that __________.

Correct Answer: Option A — have a valid National Pollutant Discharge Elimination System permit

33 CFR 151.25 provides an exemption for MODUs that possess a valid National Pollutant Discharge Elimination System (NPDES) permit. This permit covers the discharge of oil and oily mixtures, thereby superseding the requirement to maintain a separate Oil Record Book for those specific operational discharges.