A crew member joins a vessel that is a sister ship to the vessel on which the crew member previously completed firefighting training. Under 46 CFR §185.420, how is this prior training treated?

1. A. It is not recognized; all training must be repeated aboard the new vessel
2. B. It satisfies only the initial training requirement but not subsequent quarterly training
3. ✓ It may be considered equivalent to the initial, monthly, and quarterly training requirementsCorrect
4. D. It satisfies the quarterly requirement only if documented by the previous vessel's master