- What the Air Diving Supervisor Exam Actually Covers
- The Content Areas Behind Section 3.4
- Question Style and Exam Format
- Registration, Fees, and Eligibility Mechanics
- Who Hires Certified Air Diving Supervisors
- Mapping a Study Timeline to the Content Areas
- How ADCI Compares to Other Supervisor Schemes
- FAQ
- ADCI's Air Diving Supervisor exam is built around Section 3.4 of the International Consensus Standards, edition 6.5, 2025-1.
- Content areas cover supervisor duties, dive planning, job hazard analysis, crew/equipment readiness, emergency preparation, and records.
- You need 200 field days, 50 working dives, and 30 days as Assistant Supervisor before you're eligible to sit the exam.
- The $275 fee covers the online exam and the certification card; passing does not waive the training and experience requirements.
What the Air Diving Supervisor Exam Actually Covers
The ADCI Air Diving Supervisor Certification Examination - officially the credential for the Surface-Supplied Air Diving Supervisor classification - isn't a general knowledge test about commercial diving history or physics trivia. It is a job-role verification exam. The Association of Diving Contractors International built it to confirm that a candidate who has already logged real field time can run a surface-supplied air diving job safely from topside, start to finish.
That distinction matters for how you prepare. Because the exam sits on top of documented experience - not instead of it - the content areas assume you already know how a surface-supplied air spread works. What the exam actually tests is whether you can apply supervisor-level judgment: planning the dive, anticipating hazards, confirming the crew and gear are ready, and knowing what to do when something goes wrong. If you want a broader orientation before diving into domain specifics, the What Is ADC-AIR-DIVING-SUPERVISOR? primer is a useful starting point, and the Requirements 2026 guide walks through the field-day and dive-count thresholds you need before you can even apply.
The Content Areas Behind Section 3.4
ADCI does not publish a set of numbered "domains" with percentage weightings the way some other certification bodies do. Instead, the exam content is drawn directly from Section 3.4 of the International Consensus Standards, edition 6.5, 2025-1, which lays out supervisor responsibilities in six functional areas. Treat these as your content map: everything a written question could ask ties back to one of these areas.
Supervisor Duties and Authority
This is the foundation area - what the standards actually expect of the person in charge of the dive. Expect questions built around who holds final authority on a dive station, what a supervisor must verify before, during, and after a dive, and how supervisory responsibility differs from that of an Assistant Supervisor.
- Chain of command and sign-off responsibility on a live dive
- Written appointment documentation and what it authorizes
- When a supervisor must halt or abort a dive
Dive Planning
Dive planning questions test whether you can turn a job scope into a workable, standards-compliant plan - depth, bottom time, gas supply, decompression considerations, and contingency options for surface-supplied air work.
- Matching equipment and personnel to the specific dive task
- Building realistic time and depth parameters before wet work starts
- Contingency planning for changing conditions
Job Hazard Analysis (JHA)
JHA content checks your ability to identify site-specific risks before a diver goes in the water - not generic hazard lists, but the process of analyzing a particular job, vessel, or environment for what could go wrong.
- Site, environmental, and task-specific hazard identification
- Communicating hazards to the dive team before start-up
- Documenting the JHA as part of the job record
Crew and Equipment Readiness
This area covers verifying that both the human and mechanical sides of the operation are fit to dive - crew qualifications, medical fitness provisions, and equipment inspection and function testing.
- Confirming crew certifications, medical fitness, and current first aid/CPR
- Pre-dive equipment checks and readiness sign-off
- Standby diver and backup gas readiness
Emergency Preparation
Emergency content tests whether you know what a supervisor must have in place before a dive starts, not just how to react once an incident occurs - evacuation plans, communication with medical support, and emergency equipment staging.
- Pre-dive emergency briefings and equipment staging
- Communication protocols during an incident
- Post-incident reporting obligations
Records
Recordkeeping is a recurring supervisor duty, and the exam checks whether you understand what must be logged, how, and for how long - dive logs, decompression records, and equipment maintenance documentation.
- What belongs in a dive log versus an incident report
- Retention expectations for job and equipment records
- How records support employer verification and future certification renewals
Key Takeaway
Study Section 3.4 area by area rather than trying to memorize the standards cover to cover - every scenario question maps back to one of these six functions.
Question Style and Exam Format
The Air Diving Supervisor exam is delivered online through ADCI's certification process. Because the credential is scenario-driven rather than academic, expect questions framed around decisions a supervisor would face on an actual job: what to check before splashing a diver, how to respond when a hazard is identified mid-job, and what documentation a given situation requires. Rote memorization of definitions will get you partway; the harder items ask you to apply the six content areas above to a described situation.
If you're trying to gauge how much this differs from a typical multiple-choice knowledge test, the difficulty guide breaks down where candidates tend to struggle, and the passing score article covers what you actually need to clear the exam. For structured practice that mirrors this scenario-based style, working through timed questions on our practice test platform before exam day is one of the more direct ways to get comfortable with the format.
Registration, Fees, and Eligibility Mechanics
Before you can sit the exam, ADCI requires a documented eligibility trail. This is where the Air Diving Supervisor pathway differs most from purely academic certifications - you can't simply register and study; you have to prove field time first.
| Requirement | Minimum |
|---|---|
| Field days as an Air Diver | 200 days |
| Working dives as an Air Diver | 50 dives |
| Working days as an Assistant Supervisor | 30 days |
| Formal instruction (or recognized equivalent) | 625 hours |
| Exam and certification card fee | $275 |
| Certification validity period | 5 years |
Alongside the numerical thresholds, ADCI requires employer verification of your experience, a written appointment confirming you've held supervisory responsibility, current first aid/CPR, and applicable medical-fitness documentation. Applications and renewals run through Skill N Depth. For a full line-item breakdown of what the $275 fee does and doesn't cover, see the certification cost guide, and for a step-by-step eligibility walkthrough see the requirements article.
Who Hires Certified Air Diving Supervisors
Because this credential is tied to a specific ADCI classification, employers in commercial diving - inland, coastal, and offshore contractors running surface-supplied air spreads - use it as a baseline hiring and promotion filter. A supervisor certification signals that the candidate has already accumulated the field days, dive count, and assistant-supervisor experience the standards require, and has demonstrated the judgment to run a job station rather than just execute tasks in the water.
If you're evaluating whether this certification is worth pursuing given your current role, the ROI analysis and the earnings guide both address how the credential factors into career progression, and the jobs overview covers the kinds of roles that typically list it as a requirement or preference.
Mapping a Study Timeline to the Content Areas
Generic study advice - spaced repetition, timed drills, weekly targets - only helps if it's pointed at the right material. Given that the exam draws from six functional areas in Section 3.4, a simple way to structure your remaining prep weeks is to dedicate blocks to the areas where scenario reasoning is weakest, rather than spreading time evenly across everything.
Supervisor Duties & Dive Planning
- Review chain-of-command and sign-off scenarios
- Practice building dive plans from sample job scopes
Job Hazard Analysis & Crew/Equipment Readiness
- Work through site-specific hazard scenarios
- Drill pre-dive readiness checklists from memory
Emergency Preparation & Records
- Practice emergency communication and staging scenarios
- Review what belongs in dive logs vs. incident reports
Full Review
- Run timed practice sessions covering all six areas
- Confirm documentation (first aid/CPR, appointment letter) is current
For a condensed reference you can review the night before the exam, the one-page cheat sheet pulls together the must-know facts, and a fuller walkthrough of preparation strategy is in the study guide. Running scenario questions through our practice tests during weeks 2 through 4 is a practical way to check whether you're actually applying the content areas or just recognizing terminology.
How ADCI Compares to Other Supervisor Schemes
Commercial diving has more than one supervisor certification path, and it's worth being clear about which one you're preparing for. The ADCI Air Diving Supervisor credential covered here is distinct from IMCA supervisor competence schemes and from UK ADC (Association of Diving Contractors, UK) supervisor routes - different governing bodies, different documentation requirements, and different exam structures. Mixing prep materials across schemes is one of the most common mistakes candidates make.
| Aspect | ADCI Air Diving Supervisor |
|---|---|
| Certifying body | Association of Diving Contractors International (ADCI) |
| Standards reference | International Consensus Standards, edition 6.5, 2025-1, Section 3.4 |
| Exam delivery | Online certification examination |
| Applications/renewals | Processed through Skill N Depth |
| Nitrox authority | Requires separate endorsement, not included by default |
Keeping this distinction front-of-mind avoids wasted study time on the wrong standards document. For general orientation on terminology and what the acronym covers in this specific context, see ADC-AIR-DIVING-SUPERVISOR Meaning and What Does ADC-AIR-DIVING-SUPERVISOR Stand For?.
FAQ
The exam draws from Section 3.4 of the International Consensus Standards, which organizes supervisor responsibilities into six functional areas: supervisor duties, dive planning, job hazard analysis, crew and equipment readiness, emergency preparation, and records.
Yes. ADCI requires at least 200 field days as an Air Diver, 50 working dives as an Air Diver, and 30 working days as an Assistant Supervisor, along with employer verification and a written appointment, before you qualify to sit the exam.
No. ADCI states explicitly that passing the examination does not replace the training and experience requirements - the field days, dives, and assistant-supervisor time must still be documented separately.
No. Supervising nitrox operations requires the applicable separate endorsement; it is not automatically part of the base Air Diving Supervisor credential.
The certification is valid for five years. Both initial applications and renewals are processed through Skill N Depth.