RYA Commercial Endorsement - PPR, ENG1, STCW Basic Safety & Coding

Prerequisites

This lesson opens the professional half of the course: the route from an RYA Certificate of Competence to paid work at sea under the UK Maritime and Coastguard Agency (MCA). Before starting you should:

• Hold, or be working towards, an RYA Yachtmaster Coastal, Offshore or Ocean Certificate of Competence. The commercial endorsement attaches to one of these.
• Hold the RYA Short Range Certificate (SRC) and a first aid certificate.
• Understand the difference between a certificate of competence (awarded by exam) and a course completion certificate.
• Know the vessel and safety equipment topics from the Coastal and Offshore courses, which the coding regime formalises.

Learning Objectives

By the end of this lesson you will be able to:

• Explain what a commercial endorsement is, why it is needed and which RYA certificates can carry one.
• List the documents required for an endorsement: PPR, medical (ML5 or ENG1), sea survival, radio certificate, original certificate and photo.
• Describe the four modules of the PPR course and its assessment.
• Distinguish the ML5 and ENG1 medicals and know when each is acceptable.
• State what a commercially endorsed Yachtmaster Coastal, Offshore and Ocean allows: vessel size, tonnage, area category and distance from a safe haven.
• Explain the area categories 0 to 6 used for coded vessels and how they drive equipment and manning.
• Describe the four STCW basic safety modules and the STCW endorsement, and which parts need updating every five years.
• Apply the five-year renewal rules, including the 150 days of sea service.
• Explain gross tonnage well enough to know why 200gt, 500gt and 3000gt are the thresholds that matter.

Why an Endorsement Exists

An RYA Certificate of Competence shows that you can skipper a yacht. It does not, on its own, allow you to be paid for it. Under UK law a vessel used commercially (chartered with a skipper, used for training, delivered for a fee, used as a workboat) must comply with the relevant MCA code of practice, and the code requires the skipper to hold a certificate that the MCA accepts, with a commercial endorsement. The endorsement is the MCA's assurance, administered by the RYA, that the holder is medically fit, has basic sea survival training, can use the radio and understands their professional responsibilities.

The certificates that can be commercially endorsed are the RYA Yachtmaster Coastal, Offshore and Ocean Certificates of Competence, the RYA Advanced Powerboat Certificate of Competence, and (with limits) the RYA Day Skipper practical and Powerboat Level 2 course completion certificates.

The Documents

To apply for a commercial endorsement you submit the items shown below.

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1. Your original certificate (the Certificate of Competence being endorsed).
2. PPR certificate. Since April 2012 all new applicants must pass the online Professional Practices and Responsibilities course before applying; renewing holders must pass it before their next renewal.
3. Medical fitness certificate. Either an ML5 (the form MSF 4112, completed by your own doctor) or an ENG1 (a seafarer medical from an MCA-approved doctor). See below for which you need.
4. Sea survival. A copy of the RYA Basic Sea Survival certificate (a one-day course) or the STCW Personal Survival Techniques certificate.
5. Radio certificate. The RYA Marine Radio Short Range Certificate or another acceptable GMDSS operator's certificate (LRC or GOC).
6. A passport photograph with your name on the back, and the application form and fee.

Your first aid certificate is not part of the endorsement application (it is a requirement of the Yachtmaster exam itself) but it must be kept current for most commercial work and for every instructor qualification.

PPR: Professional Practices and Responsibilities

PPR is an online course of around six to eight hours of study, written by the RYA with the MCA, that turns a leisure sailor into someone who understands the commercial maritime framework. Its four modules are:

After the modules there is a mock assessment, then a graded final assessment in two sections totalling about two and a half hours. Most of what PPR teaches is the content of this lesson and the next two.

Medicals: ML5 and ENG1

• ML5 is a certificate of medical fitness completed by your own GP on the MCA form. It is accepted for a commercial endorsement for work on vessels under 24 m in UK coded operations; it is the usual choice for a skipper working on charter yachts, training boats and small workboats.
• ENG1 is the full seafarer medical conducted by an MCA-approved doctor, valid for up to two years. It is required for STCW endorsements and for any MCA Certificate of Competency (Master 200, OOW and above), and many employers and flag states ask for it regardless.

A restriction on an ENG1 (for example, near-coastal only, or not for lookout duties) can stop you gaining STCW qualifications for vessels over 24 m: the MCA application form for yacht deck CoCs, MSF 4343, states that a candidate unable to take a solo watch or unfit for lookout duties will not be issued a UK deck officer CoC. The ENG1 includes colour vision and visual acuity tests, and MSN 1858, section 7.2, strongly advises a medical and sight test before you start training. If you only want an early check of your eyesight, an optometrist can do it on form MSF 4100. If you have any doubt about eyesight, hearing or a medical condition, get the ENG1 early: it is pointless to spend money on training for a career that a medical will bar.

What the Endorsed Certificate Allows

The RYA sets out what each commercially endorsed certificate lets you do.

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The Offshore endorsement is also the stepping stone to the MCA Officer of the Watch (Yachts) route for larger vessels, and the Ocean endorsement is one of the inputs to the MCA Master (Yachts) certificates, covered in later lessons.

On yachts of 24 m and over

Once a yacht reaches 24 m load line length and is in commercial use for sport or pleasure, carrying no cargo and no more than 12 passengers, it falls under the Red Ensign Group Yacht Code, Part A (REG Yacht Code 2024, Part A, section 1), not the small vessel codes. The deck officers it must carry are set by the minimum manning scale in MSN 1858, section 13.1. A Yachtmaster still has a place there, as the extract below shows for yachts of 24 m and over:

IYT Master of Yachts certificates are accepted at the same levels, and an MCA Master (Code vessels less than 200gt) can be used instead of the Yachtmaster Offshore (Limited) or Ocean (Unlimited). Three things stand out. A Yachtmaster can command a yacht of 24 m or more only while it is under 200gt; from 200gt the master needs an MCA Master (Yachts) CoC. The scale is a minimum, and MSN 1858 strongly recommends extra officers to prevent fatigue in intensive operations. And the flag's own manning rules decide in the end, so read the yacht's manning document.

Area Categories and Coding

A vessel in commercial use under 24 m is "coded": surveyed, equipped and certificated under the MCA codes of practice collected in Marine Guidance Note MGN 280 (the Small Commercial Vessel and Pilot Boat Code) or, for newer vessels, the current Sport and Pleasure code. The RYA is one of the certifying authorities that carries out coding surveys. The code assigns each vessel an area category that sets how far from a safe haven it may operate, and the category drives the equipment it must carry and the certificate its skipper must hold.

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A safe haven is a harbour or shelter of any kind that affords safe entry and protection from the weather. The further from a safe haven, the more self-sufficient the vessel must be: more liferafts, longer-range radio, more fire-fighting equipment, a higher stability standard, and a more highly qualified skipper. Coding certificates run for five years with annual, intermediate and renewal surveys, and the vessel's stability is assessed, usually by calculation.

For the skipper the practical consequence is simple: before you take a coded boat to sea commercially, read its coding certificate. A category 3 boat may not be taken 40 miles offshore for a delivery even by an Ocean Yachtmaster.

STCW Basic Safety and the STCW Endorsement

The International Convention on Standards of Training, Certification and Watchkeeping (STCW) sets the minimum training for professional seafarers worldwide. For a Yachtmaster the relevant part is basic safety training, four short courses that together take about a week:

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The MCA's notice for yacht deck officers, MSN 1858, section 1.5, lists what you must hold before joining your first vessel for your first sea voyage on a large yacht: a valid ENG1 (or accepted equivalent), PST (STCW Code table A-VI/1-1), FPFF (A-VI/1-2), EFA (A-VI/1-3), PSSR (A-VI/1-4) and Security Awareness (A-VI/6-1). All except the ENG1 are STCW Certificates of Proficiency. If you are given designated security duties you also need the Designated Security Duties certificate (A-VI/6-2).

Holders of a commercially endorsed Yachtmaster Offshore or Ocean can obtain an STCW endorsement on their RYA certificate by completing the four modules (an EFA or a higher medical qualification counts for first aid, and PST replaces the RYA Basic Sea Survival course). The STCW endorsement is what makes the Yachtmaster recognised on larger yachts and foreign-flagged vessels, and it is the entry ticket to the MCA certificates in the next lessons.

Only PST and FPFF need updating every five years; EFA and PSSR do not expire. Once you hold the higher STCW certificates (Advanced Fire Fighting, Proficiency in Survival Craft and Rescue Boats), those also need five-yearly updating. Port state control can ask to see evidence aboard that you completed or updated these within the last five years (MSN 1858, section 5.2), so carry the certificates with you, not just copies at home.

Renewal: The Five-Year Cycle

A commercial endorsement expires after five years. To renew you must show:

• At least 150 days of actual sea service on appropriate vessels during the previous five years.
• A valid medical certificate (ML5 or ENG1).
• A pass in PPR if you have not already passed it.
• Current sea survival (RYA Basic Sea Survival does not expire; STCW PST must be within five years for an STCW endorsement) and radio certificates.

Keep a sea service record from day one. The 150 days are easy to accumulate in a full-time job and surprisingly hard to prove five years later if you never wrote them down. A logbook signed by the vessel's owner or operator, or testimonials on company letterhead, are the usual evidence.

Gross Tonnage: Why 200, 500 and 3000

Every limit in the professional ladder is expressed in gross tonnage (gt), so it is worth knowing what it is. Gross tonnage is not weight. It is a measure of the enclosed internal volume of the vessel under the International Convention on Tonnage Measurement of Ships 1969, calculated as the total enclosed volume in cubic metres multiplied by a factor that rises slowly with size (from about 0.22 for small craft towards 0.32 for very large ships). Cabins, saloons, engine rooms and enclosed deckhouses count; open decks do not.

Rough correspondences for yachts, which vary a great deal with beam and superstructure:

• A 20 m flybridge motor yacht is around 85gt; a 24 m sailing yacht may be only 60 to 100gt.
• 200gt is reached by motor yachts of roughly 30 to 35 m and sailing yachts somewhat larger.
• 500gt is the threshold at which full ISM Code certification applies to commercial yachts; under 500gt the REG Yacht Code requires a simpler safety management system instead (REG Yacht Code 2024, Part A, chapter 23A), and yachts of 500gt or more need a Safe Manning Document (MSN 1858, section 13); a 49 m yacht can be built to just under it, which is why so many are "499gt".
• 3000gt corresponds to motor yachts of roughly 75 to 90 m.

The MCA certificates are named for these thresholds: Master (Code vessels) under 200gt, OOW (Yachts) under 3000gt, Master (Yachts) under 500gt and under 3000gt.

Case Study: Why the Codes Exist

MAIB Safety Digest 1/2008 (an older publication, but the message stands) opened by noting that despite capable yachts and commercially operated leisure craft, deaths in the leisure and small commercial sector were still tragically high, and the digest's cases repeat the same causes: no proper lookout, poor planning, and fatigue. The same digest's grounding case is a reminder that those failures are not confined to amateurs: a master keeping the watch alone at night on a 3000grt ship fell asleep in the bridge chair and grounded his vessel 18 minutes after leaving the traffic lane. The codes, the endorsement and PPR exist to make the commercial skipper think about crewing, rest, equipment and limits before the passage rather than after the accident. PPR's "People" module covers hours of rest; the legal minimum for seafarers under the Maritime Labour Convention is 10 hours of rest in any 24 hours and 77 hours in any 7 days (MLC Standard A2.3).

Worked Example: From Yachtmaster to First Paid Job

Tom passes his Yachtmaster Offshore in May. He wants to skipper charter yachts in the Solent this summer and deliver yachts to the Mediterranean in the autumn.

1. May, week 1. Books an ML5 with his GP (the charter company operates category 2 and 3 boats, all under 24 m, so an ML5 is enough). Starts PPR online that evening; finishes it over two weeks and passes the final assessment.
2. May, week 2. One-day RYA Basic Sea Survival course. SRC and first aid are already in date (he checks the first aid expiry: next March).
3. May, week 3. Sends the application: original certificate, PPR certificate, ML5, sea survival certificate, SRC copy, photo, fee. The endorsement comes back in a few weeks.
4. June to September. Skippers a 40-foot category 2 charter yacht: category 2 means up to 60 miles from a safe haven, so Channel crossings to Cherbourg are within limits; a trip to the Channel Islands and on to Brittany is checked against the 60-mile line and planned with the safe havens in mind. He logs every day.
5. October. The delivery to Palma is on a 55-foot private yacht, 110 miles from a safe haven at the widest point of Biscay. Commercially endorsed Offshore covers him up to 150 miles, and a private yacht on delivery is not coded; the owner's insurer asks for his endorsement and ENG1. He books an ENG1 (he will need it for the STCW route he is now considering) and completes the four STCW basic safety modules over a week in November, applying for the STCW endorsement.
6. The following spring. 160 days logged. He will have no difficulty renewing in five years.

Common Mistakes

• Working commercially without the endorsement because "it's only a short charter". It is an offence, it voids the insurance, and it ends careers.
• Assuming a Yachtmaster covers any yacht over 24 m. On the MSN 1858 manning scale it covers command only under 200gt.
• Getting an ML5 when an ENG1 is needed. If the plan is STCW or any MCA Certificate of Competency, or work on vessels over 24 m, get the ENG1 at the start.
• Ignoring the coding certificate. The skipper is responsible for the vessel operating within its category.
• Letting the supporting certificates drift. First aid (three years), ENG1 (two years), PST and FPFF (five years), endorsement (five years) all expire on different dates.
• Not recording sea service. Renewal needs 150 days with evidence.
• Confusing gross tonnage with displacement. A 200gt limit says nothing about weight; check the vessel's tonnage certificate.
• Assuming the Day Skipper endorsement equals a Yachtmaster endorsement. The Day Skipper commercial endorsement is limited to small vessels in inshore categories; it is a starting point, not a skipper's ticket.

Summary

• A commercial endorsement, administered by the RYA for the MCA, is required to skipper a vessel used commercially; it can be added to Yachtmaster Coastal, Offshore and Ocean (and some lower certificates).
• Application: original certificate, PPR pass, ML5 or ENG1 medical, sea survival (RYA Basic or STCW PST), SRC or other GMDSS certificate, photo and fee.
• PPR is an online course in four modules (commercial environment, people, vessel, purpose) with a graded assessment.
• ML5 serves UK coded vessels under 24 m; ENG1 is needed for STCW, MCA certificates and larger vessels, and restrictions on it block the larger-vessel route.
• Endorsed Coastal: vessels to 24 m, categories 3 to 6, 20 miles; Offshore: master to 200gt, categories 1 to 6, 150 miles; Ocean: master to 200gt worldwide.
• Area categories 0 to 6 set the distance from a safe haven for coded vessels and drive equipment and manning.
• STCW basic safety is PST, FPFF, EFA and PSSR; PST and FPFF are updated every five years; the four give an STCW endorsement on an Offshore or Ocean certificate.
• Endorsements last five years; renewal needs 150 days of sea service and a valid medical.
• Gross tonnage measures enclosed volume; 200gt, 500gt and 3000gt are the thresholds that name the MCA certificates.

Check Your Understanding

1. List the documents required for a commercial endorsement application.

Answer: The original Certificate of Competence; a PPR pass certificate; an ML5 or ENG1 medical certificate; evidence of sea survival training (RYA Basic Sea Survival or STCW Personal Survival Techniques); an SRC or other acceptable GMDSS radio certificate; a passport photograph with your name on the back; the form and fee.

1. What are the four PPR modules?

Answer: Commercial environment, People, Vessel and Purpose, followed by a mock assessment and a graded final assessment.

1. Who should get an ENG1 rather than an ML5?

Answer: Anyone intending to obtain an STCW endorsement or any MCA Certificate of Competency (Master 200, OOW and above), or to work on vessels over 24 m; an ML5 from a GP is sufficient for UK coded vessels under 24 m.

1. What does a commercially endorsed Yachtmaster Offshore allow?

Answer: To work as master of commercial vessels up to 200gt in area categories 1 to 6, that is up to 150 miles from a safe haven, and as mate on vessels up to 500gt.

1. A coded category 3 vessel is asked to make a 45-mile offshore passage. May it?

Answer: No. Category 3 is limited to 20 miles from a safe haven. Category 2 (60 miles) or 1 (150 miles) would be needed, with the corresponding equipment and certification.

1. Name the four STCW basic safety modules and say which two need five-yearly updating.

Answer: Personal Survival Techniques, Fire Prevention and Fire Fighting, Elementary First Aid, and Personal Safety and Social Responsibilities. PST and FPFF must be updated every five years; EFA and PSSR do not expire.

1. What is needed to renew a commercial endorsement after five years?

Answer: At least 150 days of actual sea service on appropriate vessels in the previous five years, a valid medical certificate, a PPR pass if not already held, and current supporting certificates.

1. Explain in one sentence what gross tonnage measures.

Answer: The enclosed internal volume of the vessel (cabins, machinery spaces, enclosed deckhouses) under the 1969 Tonnage Convention, not its weight.

1. Why is 500gt such a significant threshold in yacht design?

Answer: Because at 500gt and above SOLAS, MARPOL and the ISM Code apply in full, with much heavier construction, equipment, manning and management requirements, so many yachts are built to just under 500gt.

1. A category 6 vessel operates how far, and under what conditions?

Answer: To sea within 3 miles of a nominated departure point and never more than 3 miles from land, in favourable weather and daylight only.

Sources

• MCA, MSN 1858 (M) Amendment 1: Training and Certification Guidance, UK Requirements for Deck Officers on Large Yachts (24 m and over), sections 1.5, 5, 7 and 13.
• MCA, MSF 4343: Application for a yacht deck Certificate of Competency (medical fitness note).
• Red Ensign Group, Yacht Code 2024, Part A (application and chapter 23A, safety management under 500gt).
• ILO, Maritime Labour Convention 2006, Standard A2.3.
• MAIB, Safety Digest 1/2008 (older material; the lessons still apply).

Further Reading

• RYA commercial endorsements: documents, medical, five-year validity and the 150-day renewal rule.
• RYA commercial endorsement guidance (2026 PDF).
• RYA STCW endorsements.
• RYA: working as a Yachtmaster: what each endorsed certificate allows.
• RYA: skippering commercial yachts.
• RYA coding of small commercial vessels: area categories and survey regime.
• MGN 280: the Small Commercial Vessel code.
• PPR course overview: the four modules and assessment.
• STCW basic safety training: modules and updating.
• Boat International: what is superyacht gross tonnage and the 499gt club explained.