An applicant seeking renewal of a tank vessel endorsement or an STCW endorsement valid for service on tank vessels must meet the requirements of § 10.227 of this subchapter, except § 10.227(e)(1), for renewing an MMC, and meet the following additional requirements:

(a) For endorsements as Tank Vessel-PIC, Advanced Oil and Chemical Tanker Cargo Operation; and Advanced Liquefied Gas Tanker Cargo Operations, provide evidence of—

(1) At least 90 days of service during the preceding 5 years onboard a tank vessel for which the endorsement is valid, performing duties appropriate to the tank vessel endorsement held; and participation in at least two transfers of liquid cargo in bulk of the type for which the endorsement is valid within the preceding 5 years; or

(2) Completion of an approved course for Tankship: Dangerous Liquids or Tankship: Liquefied Gases, appropriate for the endorsement to be renewed, within the previous 5 years.

(b) For endorsements as Tank Vessel-Assistant, Basic Oil and Chemical Tanker Cargo Operation; and Basic Liquefied Gas Tanker Cargo Operations, provide evidence of—

(1) At least 90 days of service during the preceding 5 years onboard a tank vessel for which the endorsement is valid, performing duties appropriate to the tank vessel endorsement held; or

(2) Completion of an approved course for Tankship: Dangerous Liquids or Tankship: Liquefied Gases, appropriate for the endorsement to be renewed, within the previous 5 years.

(c) For endorsements as Tank Barge-PIC, provide evidence of—

(1) Participation in at least two transfers of liquid cargo in bulk of the type for which the endorsement is valid, within the preceding 5 years; or

(2) Completion of a course approved for this purpose, appropriate for the endorsement to be renewed, within the previous 5 years.

(d) For endorsements as Tank Vessel-Engineer, provide evidence of—

(1) At least 90 days of service during the preceding 5 years onboard a tank vessel for which the endorsement is valid, performing duties appropriate to the tank vessel endorsement held; or

(2) Completion of a course approved for this purpose, appropriate for the endorsement to be renewed, within the previous 5 years.