Start here: two documents every crew member needs
Regardless of which department you work in — deck, interior, or engineering — there are two things you need before any captain or crew agent will take you seriously:
The universal starting point
- STCW Basic Safety Training (BST) — the four-day internationally-recognised safety course covering Personal Survival Techniques, Fire Prevention and Firefighting, Elementary First Aid, and Personal Safety and Social Responsibilities. Valid for five years. Required for commercial crew on all professional yachts. Full STCW guide →
- ENG1 seafarer medical certificate — issued by an MCA-approved doctor. Confirms you are medically fit for sea service. Valid for two years (one year for some). Required under the Maritime Labour Convention for all commercial crew. Full ENG1 guide →
Get these two sorted before anything else. They are non-negotiable and everything else in this guide builds on top of them.
Once you have STCW and your ENG1, your path diverges depending on which department you join. The certificate requirements, career pace, and progression timelines differ significantly between deck, interior, and engineering — so it is worth being clear on which direction you are heading.
Deck and bridge career path
Deck is the most certificate-heavy career path in yachting. Progression from deckhand to Officer of the Watch to Master involves a structured series of RYA qualifications followed by MCA Certificates of Competency, each requiring specific sea time that meets MCA requirements before you can sit the assessments. The MCA's published standards at gov.uk/mca set these sea-time figures — always refer to the current MCA guidance as the numbers are subject to revision.
Entry-level deck crew. Most captains also want to see Powerboat Level 2 if the yacht carries tenders, and a VHF/SRC licence if you will operate marine radio. PDSD (Proficiency in Designated Security Duties) is required for vessels over 500GT and is worth completing early.
The transition from deckhand to AB requires sea time that meets MCA requirements and completion of the STCW Able Seafarer Deck endorsement. PSCRB — an additional STCW module covering rescue boat and survival craft operation beyond the BST level — is required on most commercial yachts at this stage.
The bosun role is primarily an experience and leadership position — the most senior non-officer deck crew member, responsible for maintenance, seamanship, and managing the deck team. Crowd Management and Crisis Management/Human Behaviour STCW endorsements are required on passenger-carrying yachts and larger vessels.
The first officer-level qualification. The pathway runs: RYA Day Skipper → RYA Coastal Skipper → RYA Yachtmaster Offshore exam, then conversion to the MCA Officer of the Watch (Yacht) CoC, which requires sea time that meets MCA requirements in a qualifying role. Several mandatory STCW endorsements are required at this level including GMDSS, Radar/ARPA, and Leadership and Teamworking.
The senior deck officer below the captain. The MCA Chief Mate CoC requires additional sea time in an OOW role and completion of management-level STCW endorsements. Chief Mate on larger superyachts is a significant role with responsibility for safety systems, crew training, and operations planning.
The highest deck qualification. The MCA Master (Yacht) CoC requires sea time as Chief Mate or OOW that meets MCA requirements, an oral examination, and completion of the full suite of management-level STCW endorsements. For command of vessels over 3,000GT, additional qualifications apply. Refer to current MCA guidance for the specific requirements at each tonnage bracket.
RYA vs MCA: the RYA qualifications (Day Skipper, Coastal Skipper, Yachtmaster) are competency assessments that demonstrate practical ability. The MCA Certificates of Competency (OOW, Chief Mate, Master) are the formal professional licences that allow you to serve commercially. You need the RYA qualification to access the MCA CoC — they are sequential, not alternatives.
Interior career path
Interior — stewards and stewardesses — is the only department where career progression is largely experience-led rather than certificate-driven. Beyond the universal STCW BST and ENG1, there are no mandatory qualifications that you must hold to progress from junior stew to chief stewardess. What moves careers in interior is experience, service standards, references from captains and owners, and demonstrable leadership ability.
Entry-level interior crew. Many captains will also look for hospitality or service experience, food handling certificates, and some knowledge of fine dining or cocktail preparation. These are not regulated requirements but are practically useful and differentiate candidates at the green-crew level.
After one or more seasons as junior interior crew, with positive references, progression to 2nd stew is primarily based on demonstrated performance. PDSD (Proficiency in Designated Security Duties) becomes mandatory on larger yachts. On passenger-carrying vessels, Crowd Management and Crisis Management / Human Behaviour STCW endorsements are required.
Chief stew is a senior department-head position responsible for the entire guest experience, budget management, provisioning, and managing the interior team. There is no mandatory qualification unique to this role beyond those already described — it is reached through reputation, multi-season experience at the 2nd stew level, and demonstrated leadership under a good captain's reference.
Engineering career path
Engineering on larger yachts is a structured and certificate-heavy pathway, distinct from both deck and interior. Engineer qualifications follow a separate MCA track — Y4, Y3, Y2, Y1 — with each level corresponding to the size and power of the vessels you are qualified to maintain and operate. The specific sea-time and training requirements for each level are set by the MCA; always refer to the current MCA guidance rather than informal estimates, as these requirements are regularly updated.
Many engineers enter yachting from shore-based trades — marine engineering, electrical work, HVAC, plumbing. Relevant trade certifications alongside STCW and ENG1 are the typical entry point. Some positions are titled ETO (Electro-Technical Officer) for crew with an electrical background.
The Y4 is the entry-level MCA engineer CoC, qualifying you for engineer roles on yachts up to a certain power rating set by MCA requirements. Y3 follows with additional sea time and training, expanding the size of vessel you can work on. Each step requires meeting the MCA's current sea-service and training standards.
Senior engineer certifications qualifying you to serve as chief engineer on progressively larger and more powerful vessels. Y1 is the highest level and qualifies you for chief engineer duties on the largest superyachts. Refer to gov.uk/mca for current sea-time and examination requirements at each level.
Certificates that apply across all departments
Several STCW endorsements and safety qualifications are required across all departments on larger commercial yachts, regardless of role:
- PDSD — Proficiency in Designated Security Duties: required for all crew on vessels over 500GT. Does not expire. A short course available at most maritime training centres.
- Crowd Management: required for all crew on vessels carrying 12 or more passengers. One-day course.
- Crisis Management and Human Behaviour: required for senior crew with muster responsibilities on passenger-carrying vessels.
- Medical Care on Board (STCW): required for designated crew who provide medical care — typically the captain or a senior officer on vessels without a medic.
The specific applicability of each endorsement depends on the size of the vessel, its flag state, and its area of operation. Check with your captain or flag state agent if you are unsure which apply to your role.
Keeping your certificates organised
One of the practical realities of a yachting career is that you will accumulate a significant number of certificates over time — STCW modules, ENG1, RYA qualifications, MCA CoCs, STCW endorsements, flag-state extras — each with its own expiry date, renewal process, and issuing body. Staying on top of these is not optional: an expired certificate can prevent you from joining a vessel at short notice, and captains have been known to turn crew away on the dock for paperwork that expired months earlier.
YachtSync tracks your entire certificate portfolio — expiry dates, renewal reminders, and a shareable digital portfolio you can send to any captain or agency in one tap. Free for crew: 20 certificates, 3 AI scans, renewal alerts. No card required.
Track your career certificates in one place.
Add your STCW, ENG1, RYA qualifications, and MCA CoCs to YachtSync. Get reminded before they expire. Share your full portfolio instantly.
Free forever for crew — 20 certificates, 3 AI scans, instant sharing. No card required.
Related guides: STCW certification guide → · ENG1 medical certificate → · How to become yacht crew →