- Why There's No Official ADCI Pass Rate
- What Actually Determines Whether You Pass
- Exam Format, Fee, and What's Included
- The Training Pathway Behind the Exam
- Where Candidates Typically Lose Points
- Air Diving Supervisor vs. Other Supervisor Schemes
- Certification Validity and Renewal
- A Focused Prep Approach by Domain Area
- Frequently Asked Questions
- ADCI does not publish a numeric pass rate for the Air Diving Supervisor Certification Examination.
- Eligibility already filters candidates: 200 field days, 50 working dives, and 30 days as Assistant Supervisor are required before you sit the exam.
- The $275 fee covers the examination and certification card, not the 625 hours of training that precede it.
- Passing the exam does not waive the experience and training requirements - both must be documented.
Why There's No Official ADCI Pass Rate
If you searched for "ADC-AIR-DIVING-SUPERVISOR pass rate 2026" hoping for a clean percentage, here's the honest answer: the Association of Diving Contractors International (ADCI) does not publish a pass rate for the Air Diving Supervisor Certification Examination. Unlike some certification bodies that release annual statistics, ADCI's public materials focus on eligibility, the exam application, and the standards that govern the role - not scoring data.
That absence of a published number is actually informative. It tells you that ADCI's model leans heavily on pre-qualification rather than a high-volume, high-failure testing funnel. Candidates don't show up cold; they arrive after logging substantial field time as an Air Diver and serving as an Assistant Supervisor. The exam functions more as a checkpoint on documented competence than a filter designed to weed out a large percentage of test-takers.
What Actually Determines Whether You Pass
Because ADCI doesn't release scoring statistics, the more useful question isn't "what's the pass rate" but "what separates a prepared candidate from an unprepared one." Based on the certification's structure, readiness comes down to three verifiable inputs:
- 200 field days as an Air Diver - this is the baseline commercial diving exposure ADCI expects before you're even eligible to sit the exam.
- 50 working dives as an Air Diver - a separate count from field days, emphasizing actual in-water working time under supervision.
- 30 working days as an Assistant Supervisor - direct exposure to the supervisory role itself, including dive planning and crew coordination, before you're asked to test on it.
Candidates who accumulate these hours deliberately - rather than passively logging time - tend to walk into the exam already fluent in the language of the standards. Those who meet the minimums on paper but never actually practiced supervisory decision-making during their Assistant Supervisor days often find the exam questions less intuitive, even though the raw numbers on their application look identical.
For a full breakdown of every prerequisite and how documentation is verified, see the ADC-AIR-DIVING-SUPERVISOR Requirements 2026 guide.
Exam Format, Fee, and What's Included
The Air Diving Supervisor Certification Examination is administered online. The published $275 fee covers the examination itself and the certification card issued upon passing - it is not a bundled package that includes training, study materials, or the hundreds of hours of instruction that precede it.
Fee and Application Snapshot
Understanding exactly what the $275 buys you helps you budget correctly and avoid surprises during the application process.
- Covers the online certification examination
- Covers issuance of the certification card upon passing
- Does not cover the 625 hours of formal training (or recognized equivalent) required beforehand
- Requires supporting documentation: employer verification, experience records, written appointment, current first aid/CPR
For a line-by-line look at every cost associated with earning and maintaining this certification, read the ADC-AIR-DIVING-SUPERVISOR Certification Cost breakdown.
Key Takeaway
Passing the exam does not replace the training and experience requirements - both must be independently documented and verified regardless of your exam score.
The Training Pathway Behind the Exam
The standard route into the Air Diving Supervisor Certification Examination includes 625 hours of formal instruction, or a recognized equivalent, built on top of qualified commercial-diver training and documented Air Diver competence. This is a substantial time investment, and it's the reason the exam itself is comparatively short relative to the preparation behind it.
Because the training hours and field experience are front-loaded, the exam questions tend to assume operational fluency rather than testing raw memorization. Questions are framed around real supervisory scenarios - dive planning decisions, job hazard analysis, crew and equipment readiness checks, and emergency preparation - pulled directly from Section 3.4 of the International Consensus Standards (edition 6.5, 2025-1).
If you want a full mapping of every content area the exam draws from, the ADC-AIR-DIVING-SUPERVISOR Exam Domains guide walks through each one in detail.
Where Candidates Typically Lose Points
Without a published pass rate, the most reliable signal on difficulty comes from looking at where the standards place emphasis and where candidates with thinner supervisory experience tend to struggle. A few recurring soft spots:
Job Hazard Analysis (JHA)
Candidates who've only performed JHAs as a formality - signing off without actively shaping the analysis - often underperform on scenario questions that ask them to identify gaps in a hazard assessment.
- Know how to build a JHA from a dive plan, not just review one
Crew and Equipment Readiness
This area tests whether you understand supervisory accountability for equipment checks and crew competence - not just whether checklists exist.
- Be ready to explain who signs off on readiness and why that responsibility sits with the supervisor
Nitrox Supervision Boundaries
A common misconception is that the Air Diving Supervisor certification automatically covers nitrox operations. It does not - nitrox supervision requires the applicable separate endorsement, and exam questions can probe whether you know that boundary.
- Never assume air-diving authority extends to nitrox without the endorsement
Records and Documentation
Supervisors are expected to know what records must be kept and for how long, tying directly back to the same documentation rigor ADCI requires during certification itself.
- Understand the link between field recordkeeping and the employer verification process used for certification
For a broader assessment of how challenging the exam is relative to the underlying content, see How Hard Is the ADC-AIR-DIVING-SUPERVISOR Exam?. And if you want to know exactly what score threshold you're working toward, check the ADC-AIR-DIVING-SUPERVISOR Passing Score guide.
Air Diving Supervisor vs. Other Supervisor Schemes
One of the most common sources of confusion - and a real risk to your preparation - is mixing up ADCI's Air Diving Supervisor certification with IMCA or UK ADC supervisor schemes. These are separate systems with separate standards documents, separate exam formats, and separate governing bodies. Studying material from the wrong scheme wastes time and can leave real gaps in your ADCI-specific knowledge.
| Feature | ADCI Air Diving Supervisor |
|---|---|
| Certifying body | Association of Diving Contractors International (ADCI) |
| Governing standard | International Consensus Standards, edition 6.5, 2025-1, Section 3.4 |
| Exam format | Online certification examination |
| Fee | $275 (covers exam and certification card) |
| Validity period | 5 years |
| Renewal/application handling | Skill N Depth |
Keep your ADCI preparation self-contained. If you're unsure whether a resource is describing this exact credential, start with What Is ADC-AIR-DIVING-SUPERVISOR? to confirm you're studying the right scheme before investing hours into any single source.
Certification Validity and Renewal
Once earned, the Air Diving Supervisor certification is valid for five years. Applications and renewals are processed through Skill N Depth, and renewal is a separate administrative step from the initial certification examination. Because the credential ties directly to active field competence, treating renewal as a routine paperwork task - rather than an opportunity to revisit the standards - is a missed chance to stay current on any updates to Section 3.4 or related provisions.
A Focused Prep Approach by Domain Area
Generic study techniques only help if they're mapped to what the exam actually covers. Given that the exam draws from supervisor duties, dive planning, job hazard analysis, crew and equipment readiness, emergency preparation, and records under Section 3.4, a simple phased approach works better than open-ended review.
Standards Familiarization
- Read Section 3.4 in full before touching practice questions
- Cross-reference your own Assistant Supervisor experience against each duty listed
Scenario Application
- Work through dive-planning and JHA scenarios using real jobs from your field days
- Practice explaining crew/equipment readiness sign-off out loud, not just silently reviewing it
Documentation and Endorsement Boundaries
- Confirm you can list required records and retention expectations
- Verify your understanding of where air-diving authority ends and the nitrox endorsement begins
For a structured, first-attempt-focused version of this approach, see the full ADC-AIR-DIVING-SUPERVISOR Study Guide. If you want a condensed reference for last-minute review, the ADC-AIR-DIVING-SUPERVISOR Cheat Sheet consolidates the must-know facts. You can also run scenario-style questions against the practice environment on the main practice test platform to see how comfortable you are applying the standards under time pressure.
Employers hiring for supervisory roles on surface-supplied air diving projects generally expect this certification as documented proof of both training completion and field-tested judgment - not simply a passed exam. If you're evaluating whether the investment in training hours and field days pays off relative to the roles it opens up, the ROI analysis on ADC-AIR-DIVING-SUPERVISOR is worth reviewing alongside this article. You can also browse the practice question library on the practice test homepage to gauge your baseline before committing to a testing date.
Frequently Asked Questions
No. ADCI's public materials cover eligibility, application requirements, and the governing standards, but no numeric pass rate is published for this examination.
No. Passing the examination does not replace the training and experience requirements - you still need documented field days, working dives, Assistant Supervisor time, and supporting verification.
It covers the online examination and the certification card issued upon passing. It does not cover the 625 hours of formal training or equivalent experience required beforehand.
They are separate schemes with separate standards and processes. Keep your ADCI preparation focused specifically on the International Consensus Standards, Section 3.4, rather than mixing in material from other supervisor programs.
Five years. Applications and renewals are handled through Skill N Depth, separate from the original examination process.
- ADC-AIR-DIVING-SUPERVISOR Study Guide 2026: How to Pass on Your First Attempt
- ADC-AIR-DIVING-SUPERVISOR Passing Score 2026: Exactly What You Need to Pass
- ADC-AIR-DIVING-SUPERVISOR Exam Dates 2026: Testing Windows, Deadlines & Scheduling
- How Hard Is the ADC-AIR-DIVING-SUPERVISOR Exam? Complete Difficulty Guide 2026