A seafarer holds a national endorsement as Designated Duty Engineer, 750 kW/1,000 HP. Under 46 CFR §11.329, how many additional months of sea service are required before this seafarer may apply for the STCW OICEW endorsement, assuming all competence and training requirements are also met?

Why C is correct

Table 1 to 46 CFR §11.329 specifies that a seafarer holding a Designated Duty Engineer, 750 kW/1,000 HP endorsement must complete 24 months of additional sea service to qualify for the STCW OICEW endorsement. This is distinct from the 12-month requirement for the 3,000 kW/4,000 HP DDE and the zero additional service required for third or second assistant engineer endorsements.