Service gained in the deck department on vessels of appropriate tonnage may substitute for up to 25 percent or 6 months, whichever is less, of the service requirement for an endorsement as chief engineer (limited), assistant engineer (limited), or designated duty engineer.
[CGD 81-059, 54 FR 142, Jan. 4, 1989, as amended by USCG-2006-24371, 74 FR 11249, Mar. 16, 2009]