Entry & progression
46 CFR 11.323(b)(2): an STCW engineer endorsement may be "endorsed as limited to serve on vessels without auxiliary boilers, waste-heat boilers, distilling plants, oily water separators, or sewage treatment plants." Read that list and think about a yacht.
The list, and why it is a yacht problem
| Plant named at 11.323(b)(2) | On a typical large yacht |
|---|---|
| Auxiliary boilers | Often absent |
| Waste-heat boilers | Often absent |
| Distilling plants | Frequently replaced by reverse osmosis |
| Oily water separators | May be absent or unused |
| Sewage treatment plants | May be a holding-tank arrangement instead |
WARNING — A yacht-trained engineer can end up with a restricted STCW ticket without realising it The regulation limits the endorsement to vessels without that machinery — that is, it restricts you to the kind of vessel you trained on. Yachts are exactly the vessels most likely to lack every item on the list.
The restriction is removable by demonstrating the competencies. But nobody is going to come and tell you it happened. Read the face of your certificate the day it arrives.
How to get it off
By demonstrating the competencies. Which, in practice, means finding a vessel that has the plant and getting assessed on it — or an approved facility that can. Neither happens by accident. A season on a commercial vessel is worth more to a yacht engineer's certificate than most yacht engineers believe.
The other limitation on the same page — propulsion mode
11.323(b) also restricts STCW engineer endorsements to "steam, motor, or gas turbine" as appropriate. And on the national side the rule has teeth.
11.502(a), verbatim: "For all original and raise of grade of engineer endorsements, at least one-third of the minimum service requirements must have been obtained on the particular mode of propulsion for which the applicant seeks endorsement."
11.501(d): an engineer MMC endorsement authorises service on steam, motor, or gas turbine vessels — or all modes. Modes are qualifications carried on the endorsement, not separate credentials.
Adding a mode — 11.502(b). Any ONE of four.
- 4 months as an observer on vessels of the new mode.
- 4 months as an engineer officer at the operational level on the new mode.
- 6 months as Oiler, Boiler Technician/Watertender, or Junior Engineer on the new mode.
- Completion of a Coast Guard-approved training course.
Four months as an observer is a remarkable provision and almost nobody uses it. If gas turbines are in your future — and on the fastest end of the yacht fleet they are — that is the door.
CAUTION — The mode exemption does not travel NVIC 15-14 Encl (1) 2.d waives operational-level training and assessments if you hold or have held OICEW "for the sought after propulsion mode." The waiver is mode-specific. Change modes and the exemption does not come with you.
Check the mode line on your certificate alongside the machinery restriction. Both are on the same document and both are easy to miss.