1080 total days of service, in any position or department, on Ocean, Near Coastal or Great Lakes waters, OF WHICH service on inland waters may substitute for up to 50% of the total required service AND 720 days MUST have been as master, mate, or equivalent position while holding a MMC endorsement as master, as mate, or as operator of uninspected passenger vessels,

OR

720 days as a Master or Mate of Ocean or N/C Towing Vessel and completion of an examination.

NOTE:
Service will be credited as follows:

1. Service on GL will be credited day for day.
2. Service on vessels to which STCW applies (inland or NC) will be credited day for day.

200 GRT

• 270 days (25%) of service on vessels of 101 GRT or above, OR
• 540 days (50%) of service on vessels over 67 GRT 11.422

100 GRT

• 270 days (25%) of service on vessels of 51 GRT or above, OR
• 540 days (50%) of service on vessels over 34 GRT

50 GRT

• 270 days (25%) of service on vessels over 25 GRT, OR
• 540 days (50%) of service on vessels 17 GRT or above

25 GRT

• 811 days (75%) or more days of service on vessels of 5 GRT or less, OR
• 270 days (25%) of service on vessels over 6-25 GRT, OR
• 540 days (50%) of service on vessels 1-16 GRT

(If mariner does not meet the tonnage calculation for 50 GRT or more he/she is eligible for 25 GRT)