How to become a commercial diver with no experience

What you are signing up for, and the order it happens in

Commercial diving is industrial work that happens to be done underwater. The dive is the delivery mechanism; the job is welding, rigging, concrete, inspection, cutting, bolting, cleaning hulls and changing anodes. US regulation makes the point without ceremony: under 29 CFR 1910.410, every member of a dive team has to have "the experience or training" to perform their assigned tasks, and a trainee may only be given extra tasks under the direct supervision of an experienced team member. The certificate gets you onto the team. It does not make you useful.

Two things follow from that, and they shape everything below. First, the entry barriers are lower than people expect — there is no degree, no apprenticeship, no minimum years at sea. Second, the barriers after entry are much higher than people expect, because they are experience barriers, and experience can only be bought with time on a worksite where somebody has agreed to pay you.

This page is about the route from zero to a first paid day. The longer arc towards closed-bell and saturation work is covered separately in how to train as a commercial diver.

The order matters more than most prospective divers realise. Book the course before the medical and you may lose a deposit. Book it before you have checked which certifying body governs your target market and you may end up with a certificate that is legal where you trained and worthless where you want to work.

Sources: ADAS Training and Assessment Code of Practice v4.1, 8 February 2024; HSE MA1 (rev5), June 2023; DCBC first certificate, last modified 1 June 2026; ADCI Consensus Standards, 6th edition, 2011.

Choose the regime before you choose the school

There is no world commercial diving licence. There are national schemes that recognise each other to varying and changing degrees, and a certificate's value is entirely a function of whose list it appears on.

In Great Britain the mechanism is explicit. The Health and Safety Executive publishes a List of Approved Diving Qualifications under regulation 14(1) of the Diving at Work Regulations 1997; the edition in force is dated 1 January 2026. It divides diving into nine classes — offshore, inland/inshore, shellfish, scientific and archaeological, media, recreational, police, military, and a "commercial acquaint" class covering surface-supplied educational dives to 5 metres. Only qualifications named on that list let you practise, and the list is unsentimental about geography: it covers sixteen overseas countries plus Great Britain and Northern Ireland, and no others.

Three details on that list are worth more to a beginner than any school brochure. Offshore surface-orientated diving to 50 metres requires HSE Surface Supplied together with the Surface Supplied (Top-Up) qualification. The inland/inshore class explicitly excludes diving deeper than 50 metres. And recognition can be withdrawn: the January 2025 edition recognised Spanish qualifications only if the diver also held the HSE Top-Up, and accepted certain French classes only if issued on or before 14 June 2024.

That French cut-off is not a British quirk. The Diver Certification Board of Canada records that at the International Diving Regulators and Certifiers Forum meeting in Switzerland in October 2024, members voted to suspend France's membership, and DCBC consequently stopped accepting French certificates issued after 14 June 2024 for crossover applications. IDRCF members, per DCBC, are ADAS, Norway, South Africa, HSE, IMCA, ADCI and DCBC itself. If you are choosing between schools in different countries, that membership list is the single most useful piece of information on this page.

Sources: HSE List of Approved Diving Qualifications, 1 January 2026; ADCI Consensus Standards, 6th edition, 2011; DCBC, 1 June 2026; ADAS code of practice, 8 February 2024; Singapore MOM commercial diving certifications, undated; ADAS Mutual Recognition Table v3.0, 11 December 2024.

The medical and the swim test: the two gates before the money

The medical is where most of the involuntary exits happen, and it happens before you have committed a course fee, which is the one piece of good news in this section.

In Great Britain the examination is carried out by an Approved Medical Examiner of Divers following HSE guidance MA1, revision 5, published June 2023. The AMED records findings on form MA2 and must state whether the diver is fit, fit with restrictions, or unfit. A certificate of fitness lasts a maximum of 12 months; you may be examined up to a month before expiry, and the new certificate can run from the old expiry date, but the total still cannot exceed 12 months. Restrictions, where applied, can limit depth, bottom time, dive frequency, remoteness of the worksite and the duration of the certificate itself. HSE also publishes a separate list of approved classes of medical practitioner, dated 24 February 2024, under which diving doctors approved in the Netherlands, Norway, Ireland, Northern Ireland and Guernsey are automatically recognised.

Australia and New Zealand run on AS/NZS 2299.1: a current occupational diving medical from a doctor trained in underwater medicine, and for entry-level ADAS courses it must have been issued within 90 days of the course start date. Underwater Training Centre SA specifies a doctor from the SPUMS list.

In the United States the examination is the ADCI dive physical, performed by a UHMS- or ADCI-certified physician. Divers Institute of Technology quotes US$850 for it and states that if a student is medically disqualified after acceptance and enrolment, all payments to the school are refunded. DIT also publishes a hard numeric threshold that most schools leave vague: an applicant with a body mass index above 32.5 cannot start the programme. Its published list of ADCI disqualifying conditions includes a seizure history excluding early-childhood febrile seizures, significant anxiety, panic disorder or claustrophobia, serious lung disease including spontaneous pneumothorax, chronic inability to equalise, and any chronic condition requiring continuous medication to control.

The swim test is the second gate, and it is less fearsome than forum folklore suggests.

Sources: ADAS Code of Practice v4.1, 8 February 2024; UTCSA FAQ, consulted October 2026; DIT admission requirements and DIT catalogue, addendum 6 March 2026; PDA Offshore Career Package; DiveSafe International.

What the course costs, school by school

These are published prices from named schools, in their own currency, as advertised in October 2026. They are not averages and they are not estimates. Prices move; the dates matter.

Sources: school websites consulted 8 October 2026 — UTCSA, Commercial Dive Academy, Professional Diving Academy, DIT cost page, The Ocean Corporation, DiveSafe International, DEEP.

Two patterns are visible in that table and in neither case does the brochure point them out. Australian ADAS courses are modular, so you can enter for the price of Part 1 and stop; American and Canadian programmes are monolithic, so you pay for the whole 840 or 900 hours up front. And the UK route is the cheapest way to a certificate the offshore sector recognises, because the Top-Up is bundled. Our directory of 34 commercial diving schools lists who teaches what, and only five of them teach saturation at all.

The tickets the course fee does not cover

This is the section nobody itemises, and it is where budgets break. The course price is the largest single number, not the total.

Sources: DIT requirements and cost page; TSA TWIC; DCBC fees, 1 June 2026; IMCA shop, last modified 2 April 2026; DiveSafe International; PDA Top-Up.

Offshore survival training is the one item we will not put a number on. Operators in the North Sea and most other offshore basins require OPITO-standard basic offshore safety induction and emergency training before you can board a helicopter, and the course is bought from OPITO-approved centres rather than from OPITO itself. We could not verify a current published duration, validity period or price from OPITO's own standards library, so we are not going to print one. Ask the provider, and ask your intended employer which variant they accept, because that answer changes by basin.

Your first year is tending, and that is the job

The certificate you leave school with is, in most schemes, literally named after the support role. ADCI's entry card is the Entry-Level Tender/Diver. DCBC sells a Surface Supplied Tender certificate for CAD 90. The ADCI standard describes the role plainly: continuously tending a diver, handling the umbilical, supporting in-water decompression, maintaining chamber communication — and performing diving or standby tasks when the supervisor directs it. That last clause is the whole of your first year.

If you want evidence that the regulators expect this, look at how DCBC handles renewal. A two-year certificate normally requires 50 logged working dives to renew. For new graduates who have not reached 50, DCBC states that proof of tending activities may be applied instead. The certifying body has written into its own policy the assumption that a fresh graduate will spend two years mostly not diving.

Tending is how a supervisor learns whether you can be trusted on the end of an umbilical. It is also the part of the job that filters out most of the people who paid for the course: long hours on deck, bad weather, boredom, and a dive rota that may put you in the water twice in a month. We go through the ways people sabotage this stage in the common mistakes when starting out.

The logbook is your CV, and these are the numbers it has to reach

From the moment you qualify, your career is a function of one document. Nobody hires on the strength of a school certificate after the first year; they hire on the strength of a logbook with a supervisor's signature against each entry. Four schemes publish the thresholds explicitly, and putting them side by side shows how long the road actually is.

Sources: DCBC renewal, 6 January 2026; ADCI Consensus Standards, 6th edition, 2011; Commercial Dive Academy ADAS Part 4; DEEP HSE Closed Bell; ADAS Mutual Recognition Table v3.0, 11 December 2024.

Read the ADCI air diver line again. Thirty working dives within the previous 24 months, with 20 minutes of bottom time each. That is not a lot of diving — and it is still more than a great many certificate holders manage, because 100 field days a year is a full season of work that nobody is obliged to give you. The logbook is also the document most new divers keep badly; we wrote a whole guide on how to keep a dive logbook properly, because an unsigned or inconsistent book will cost you a crossover application years later.

What a newly qualified diver is actually paid

The honest answer is that very few jurisdictions publish wage data for commercial divers specifically, and the ones that do describe a population dominated by experienced inland divers, not beginners.

The United States is the exception. The Bureau of Labor Statistics tracks Commercial Divers as occupation 49-9092 and, for May 2025, reported a median annual wage of US$72,990 — US$35.09 an hour — across roughly 4,000 employed divers. The distribution matters far more than the median.

Source: O*NET OnLine, Commercial Divers 49-9092, national wages, from BLS May 2025 wage data, consulted 8 October 2026.

If you are starting, the number that applies to you is US$43,330, not US$72,990, and in your first year you may well sit below the 10th percentile because you will not work a full season. BLS also projects employment growth of 5 to 6 per cent over 2025–2035 with about 400 openings a year, which includes replacement of leavers. Four hundred openings a year, nationally, against the hundreds of graduates a single large school produces.

For the United Kingdom, the reference point is the Offshore Diving Industry Agreement minimum day rates effective 1 January 2026, which we list in full on our page on what commercial divers are paid. The grade a beginner enters at is not called diver. It is trainee rigger, at £350.81 a day. The Diver grade starts at £518.91. That gap, and the existence of a separate trainee grade in a collectively agreed pay scale, is the most reliable published evidence that the industry expects you to spend time on deck first. Treat the rates themselves with some caution: ODIA does not publish its rate schedule; the figures in circulation are third-party reproductions of the Schedule of Rates dated January 2026, and cannot be checked against the primary document. What is not in doubt is the existence of the trainee grade, which is the point here.

How long until someone hires you: what is published, and what is not

No regulator, no industry body and no national statistics office publishes the time from qualification to first paid diving day. Anyone who gives you a figure for that is guessing. What does exist, and what almost nobody looks at, is the accreditation disclosure that American schools are obliged to file.

Divers Institute of Technology is accredited by the Accrediting Commission of Career Schools and Colleges and publishes five years of completion and placement rates in its Student Consumer Information Guide.

Source: Divers Institute of Technology, Student Consumer Information Guide, January 2024 update; ACCSC-reported figures.

Those are good numbers, and they deserve to be read carefully rather than celebrated. "Placed in field of study" is an ACCSC definition covering employment in the field, which includes tending, topside support and adjacent industrial work. It is not a count of people diving for a living. The 2022 figure of 80 per cent also shows how much the number moves with the market: a twelve-point swing in one reporting year, same school, same curriculum. If you are weighing a US$48,800 total cost of attendance, that volatility is the risk you are taking on.

DIT's 2019 gainful employment disclosure records that a typical graduate left with US$9,500 of debt. Taken with the US$43,330 tenth-percentile wage, that is a manageable position — more than can be said for a lot of vocational training. Note what is absent: no school we examined publishes a starting salary for its own graduates, and Underwater Training Centre SA states outright that it will not promise 100 per cent job placement because nobody can guarantee what the industry will do. Our guide to getting a first job as an offshore diver covers how the hiring actually happens.

What the internet gets wrong

Five claims recur on nearly every page about this trade, and all five are either false or seriously misleading.

"Underwater welders earn $200,000." The BLS distribution above puts the 90th percentile of all US commercial divers at US$157,790 for May 2025. Welding is a skill that improves your position within that distribution; it is not a separate pay scale. Figures above the 90th percentile exist, but they belong to saturation divers and supervisors with a decade behind them, not to welders two years out of school.

"You'll be IMCA certified." IMCA recognises training qualifications issued by schools. It publishes an assessment procedure for schools seeking that recognition, most recently updated 5 October 2026, and it sells a professional diver's logbook for £75. It does not issue certificates to divers.

"Commercial diving is a global ticket." HSE's approved list covers sixteen overseas countries plus Great Britain and Northern Ireland, and Singapore is not among them. Singapore's own recognised certifications, per the WSH Council table, top out at 30 metres with no local offshore qualification listed. France's IDRCF membership was suspended in October 2024 and its post-14-June-2024 certificates are no longer accepted for DCBC crossover. A ticket is a passport to specific markets and can be devalued by a committee decision you will never be consulted about.

"Recreational diving experience gets you ahead." ADAS and most Australian and Canadian schools require a recreational Open Water certificate, so you need one — but DIT states plainly that no prior dive experience is required and that it looks for mechanical aptitude and the ability to work safely in a team. Nothing in the ADCI entry-level standard references recreational experience. The skills that transfer are tool use, rigging and tolerance for discomfort, not buoyancy control.

"Do the course and the work follows." BLS projects about 400 openings a year across the whole US occupation. Three American schools alone produce a comparable number of graduates annually. The constraint on this career has never been the training.

Country by country: the entry route where you are

The same five steps apply everywhere; the names and the gatekeepers change. Where a country has no scheme recognised by the bodies that matter offshore, we say so rather than inventing one.

Sources: HSE approved list, 1 January 2026; DCBC accredited schools, 9 January 2026; ADAS training schools, 8 September 2026; Singapore MOM table; DCBC international recognition, 19 February 2025.

A realistic timeline from zero

Putting the sourced durations end to end: the medical and the recreational prerequisite take weeks. The entry course takes between four weeks for a single ADAS part and about thirty weeks for a full American programme. The certification card follows within weeks. If you are in Great Britain and want offshore work, the Top-Up adds up to three weeks on top. So from a standing start to a certificate in hand is realistically three to eight months, and £15,000 to US$49,000 depending on the route.

Then the clock you cannot control starts. DCBC's policy assumes you may not have 50 working dives in two years. ADCI's air diver designation wants 100 field days and 30 working dives inside 24 months. ADAS Part 4 wants a Part 3 ticket held a year, 100 logged dives and 100 working hours. The closed-bell crossover standard wants 29 bell lockouts as a diver and 29 as a bellman. Each of those thresholds is a published fact; the time it takes you to reach them depends entirely on how much work you are given.

Which is why the single best thing you can do in the first two years is make yourself the person a supervisor asks for by name. Rigging, welding coding, non-destructive testing, chamber operation, and the diver medic ticket — covered in our piece on the diver medic role — all make you cheaper to crew and harder to leave behind. The career after the first few years runs towards supervision, which we trace in from diver to diving supervisor.

Sources

1. HSE — List of Approved Diving Qualifications (1 January 2026), consulted 8 October 2026.
2. HSE — List of Approved Diving Qualifications, 1 January 2026, consulted 8 October 2026.
3. HSE — Diving: training and qualifications, updated 25 February 2026, consulted 8 October 2026.
4. HSE — MA1 (rev5), The medical examination and assessment of divers, June 2023, consulted 8 October 2026.
5. HSE — List of Approved Classes of Medical Practitioners (24 February 2024), consulted 8 October 2026.
6. HSE — Diving medical requirements, updated 2 December 2025, consulted 8 October 2026.
7. HSE — Diving resources, forms and publications, consulted 8 October 2026.
8. ADCI — Consensus Standards for Commercial Diving and Underwater Operations, 6th edition (2011), consulted 8 October 2026.
9. O*NET OnLine — Certification: Entry Level Tender Diver (ADCI), consulted 8 October 2026.
10. O*NET OnLine — Commercial Divers 49-9092.00 summary (BLS May 2025 wages; 2025–2035 projections), consulted 8 October 2026.
11. O*NET OnLine — Commercial Divers 49-9092.00, national wage percentiles (BLS May 2025), consulted 8 October 2026.
12. OSHA — 29 CFR 1910.410, Qualifications of dive team, consulted 8 October 2026.
13. OSHA — 29 CFR 1910.422, Procedures during dive, consulted 8 October 2026.
14. TSA — Transportation Worker Identification Credential (TWIC), consulted 8 October 2026.
15. Divers Institute of Technology — Commercial diver certifications, consulted 8 October 2026.
16. Divers Institute of Technology — Admission requirements, consulted 8 October 2026.
17. Divers Institute of Technology — Disqualifying medical conditions, last modified 15 July 2026, consulted 8 October 2026.
18. Divers Institute of Technology — Cost of attendance, consulted 8 October 2026.
19. Divers Institute of Technology — Student Consumer Information Guide, January 2024 update, consulted 8 October 2026.
20. Divers Institute of Technology — Student catalogue, January 2025 to December 2026, addendum 6 March 2026, consulted 8 October 2026.
21. The Ocean Corporation — Commercial diving programme, last modified 2 September 2026, consulted 8 October 2026.
22. Diver Certification Board of Canada — Certification, last modified 6 January 2026, consulted 8 October 2026.
23. DCBC — First certificate, levels and fees, last modified 1 June 2026, consulted 8 October 2026.
24. DCBC — Renewal requirements, last modified 6 January 2026, consulted 8 October 2026.
25. DCBC — Upgrade, last modified 6 January 2026, consulted 8 October 2026.
26. DCBC — Accredited schools, last modified 9 January 2026, consulted 8 October 2026.
27. DCBC — International recognition and IDRCF membership, 19 February 2025, consulted 8 October 2026.
28. DiveSafe International — Unrestricted Surface Supply Diver, consulted 8 October 2026.
29. ADAS — Start or further your career, last modified 16 April 2024, consulted 8 October 2026.
30. ADAS — Code of practice and AS 2815 series, last modified 8 February 2024, consulted 8 October 2026.
31. ADAS — Training and Assessment Code of Practice v4.1 (8 February 2024), consulted 8 October 2026.
32. ADAS — Mutual Recognition Table v3.0 (11 December 2024), consulted 8 October 2026.
33. ADAS — Accredited training establishments, last modified 8 September 2026, consulted 8 October 2026.
34. Underwater Training Centre SA — Courses and prices, consulted 8 October 2026.
35. Underwater Training Centre SA — FAQ, entry requirements and swim test, consulted 8 October 2026.
36. Underwater Training Centre SA — ADAS Part 1 and 2 combined, consulted 8 October 2026.
37. Commercial Dive Academy — ADAS Part 1-2-3 combo, consulted 8 October 2026.
38. Commercial Dive Academy — ADAS Part 3, consulted 8 October 2026.
39. Commercial Dive Academy — ADAS Part 4 prerequisites, consulted 8 October 2026.
40. Professional Diving Academy — HSE Offshore Career Package, consulted 8 October 2026.
41. Professional Diving Academy — HSE Surface Supplied (Top-Up), prior competence route, consulted 8 October 2026.
42. DEEP — HSE Closed Bell Diver course, consulted 8 October 2026.
43. IMCA — Publications, including the 5 October 2026 information note on recognition of in-water diver training qualifications, consulted 8 October 2026.
44. IMCA — Diving division, consulted 8 October 2026.
45. IMCA — Shop, professional diver's logbook, last modified 2 April 2026, consulted 8 October 2026.
46. Singapore Ministry of Manpower / WSH Council — Commercial diving certifications (undated), consulted 8 October 2026.
47. Fair Work Ombudsman — Professional Diving Industry (Industrial) Award MA000108 summary, consulted 8 October 2026.
48. satdiver — What commercial divers are paid, including ODIA minimum day rates effective 1 January 2026, consulted 8 October 2026.

Frequently asked questions