(a) An applicant for an endorsement as deck engine mechanic shall be a person holding an MMC or MMD endorsed as junior engineer. The applicant shall be eligible for such certification upon furnishing one of the following:
(1) Satisfactory documentary evidence of sea service of 6 months in the rating of junior engineer on steam vessels of 4,000 horsepower or over; or,
(2) Documentary evidence from an operator of an automated vessel that he has completed satisfactorily at least 4 weeks indoctrination and training in the engine department of an automated steam vessel of 4,000 horsepower or over; or,
(3) Satisfactory completion of a course of training for deck engine mechanic acceptable to the Commanding Officer, National Maritime Center.
(b) The Officer in Charge, Marine Inspection, who is satisfied that an applicant for the rating of deck engine mechanic meets the requirements specified in this section, will endorse this rating on the current MMC held by the applicant.
(c) Any holder of an MMC or MMD endorsed for any unlicensed rating in the engine department or QMED—any rating is qualified as a deck engine mechanic and that endorsement will not be entered on his or her credential.