(a) If an applicant meets the requirements of subpart B of this part, the Coast Guard may endorse his or her MMC as tankerman-PIC with the appropriate cargo classification or classifications.A person holding this endorsement and meeting the other requirements of 33 CFR 155.710(a) may act as a PIC of a transfer of fuel oil, of a transfer of liquid cargo in bulk, or of cargo-tank cleaning on any tank vessel.That person may also act as a tankerman-engineer, provided that he or she also holds an engineer license or engineer endorsement.