ITDA-IHMP International Standards 1998 to 2026
Training & Certification Standards
ITDA-IHMP is the only international body that trains and certifies from Scuba to Professional, Occupational and First Aid — to National and International standards, including ISO/ANSI alignment.
Safety-First Standards
Every ITDA-IHMP program is built on a safety-first philosophy, with risk management embedded into training and assessment at every level.
ISO / ANSI Compliant
Our certifications are compliant to National and International standards including ISO and ANSI, recognised across 65+ countries.
International Recognition
ITDA-IHMP credentials are accepted worldwide, with regional standards bodies and training partners supporting consistent delivery.
Unique Certification Pathways
From Learning to Swim and Snorkelling through to Technical, Occupational and Instructor levels — one continuous, standards-led pathway.
ITDA Academy
Higher education in teaching diving — academic education of diving professionals through our dedicated academy programs.
Quality Assurance
Continuous quality assurance and instructor development keep our standards above industry norms, with regular reviews and feedback.
UK HSE Approved & EU Recognised
ITDA-IHMP — Approved by the UK HSE Since 2006
ITDA-IHMP qualifications are listed in the UK Health & Safety Executive (HSE) List of Approved Diving Qualifications under the Diving at Work Regulations (DWR), recognised across the United Kingdom and the European Union.
9. HSE has produced a table of equivalencies. Only CMAS 2* and 3* equivalences are listed as only these are quoted in the List of Approved Diving Qualifications. Qualifications within a particular agency/organisation that are higher than those listed are therefore acceptable.
| Recreational Agency / Organisation | CMAS 2* Equivalence | CMAS 3* Equivalence |
|---|---|---|
| American Nitrox Divers International UK Ltd (ANDI) | Rescue Diver | Divemaster |
| British Sub-Aqua Club (BSAC) | Dive Leader & Sports Diver | Advanced Diver |
| DMT NASE UK | Rescue Diver & Advanced Rescue Diver | Divemaster |
| Global Underwater Explorers (UK) Ltd (GUE) | Not applicable | All GUE qualifications |
| International Association of Nitrox and Technical Divers UK (IANTD) | Rescue Diver | Divemaster |
| International Technical Diving Agency (ITDA) ITDA | Advanced Nitrox Diver | Extended Range Nitrox Diver |
| National Association of Underwater Instructors UK (NAUI) | Master Scuba Diver | Divemaster |
| Professional Association of Diving Instructors International Ltd (PADI) | Rescue Diver | Dive Master |
| Professional SCUBA Association International (Europe) (PSAI) | Advanced Deep Air Level 1 | Advanced Deep Air Level 2 |
2 Supervisors do not have to renew their diving qualifications unless they will also be diving in a diving project.
3 EN 14153-3 / ISO 24801-3 Recreational diving services — Safety related minimum requirements for the training of recreational scuba divers — Part 3: Level 3 — "Dive Leader"
ITDA-IHMP Standards Manual 26/27
Our complete standards manual, published in three parts — including the 2027 update when released.
Get all three parts of the Standards Manual 26/27 plus the 2027 update when released. Card payment, instant access.
Part 1
Standards Manual 26/27 — Part 1 of 3
Part 2
Standards Manual 26/27 — Part 2 of 3
Part 3
Standards Manual 26/27 — Part 3 of 3
Free Resource
Safer Diving Presentation & Quiz
Download our free 50-slide Safer Diving presentation, then test yourself with a 30-question quiz — just for fun!