- What the Air Diving Supervisor Certification Actually Covers
- Eligibility and Qualification Requirements Before You Apply
- Exam Format, Fee, and Registration Mechanics
- The Content Areas Behind Section 3.4 of the Consensus Standards
- Building a Study Timeline Around Your Field Experience
- Nitrox Endorsement and Other Scope Limitations
- Who Hires Air Diving Supervisors
- Common Mistakes That Delay Certification
- FAQ
- ADCI requires 200 field days as an Air Diver, 50 working dives, and 30 days as an Assistant Supervisor before you qualify.
- The exam is administered online through ADCI and does not replace training or documented experience.
- The $275 fee covers both the examination and the certification card.
- Certification is valid five years; applications and renewals run through Skill N Depth.
What the Air Diving Supervisor Certification Actually Covers
The Association of Diving Contractors International (ADCI) classifies this credential as Air Diving Supervisor, formally described in the standards as Surface-Supplied Air Diving Supervisor. That naming matters because it tells you exactly what the certification authorizes: supervision of surface-supplied air diving operations, not saturation diving, not mixed-gas work, and not nitrox diving unless you hold the applicable separate endorsement. If you're comparing programs, keep in mind this pathway is distinct from IMCA supervisor schemes and the UK ADC route - they use similar titles but different qualification tracks, exams, and governing bodies.
For readers who landed here wanting the basics before diving into exam prep, our companion pieces on what the Air Diving Supervisor credential is and what the designation actually means in a commercial diving context are worth a quick read first.
Eligibility and Qualification Requirements Before You Apply
Before you're even eligible to sit the exam, ADCI wants proof of hands-on commercial diving background. Specifically, qualification requires:
- At least 200 field days working as an Air Diver
- At least 50 working dives logged as an Air Diver
- 30 working days served as an Assistant Supervisor
- Completion of qualified commercial-diver training, typically through 625 hours of formal instruction or a recognized equivalent
- Employer verification, documented experience records, and a written appointment supporting your supervisory role
- Current first aid/CPR certification and satisfaction of applicable medical-fitness provisions
These aren't boxes you check the week before the exam - they're accumulated over a career on air diving crews. If you're still building toward these numbers, our detailed breakdown of Air Diving Supervisor requirements and how to qualify walks through documentation strategies employers and Skill N Depth will accept.
Key Takeaway
Start logging field days, dive counts, and Assistant Supervisor time now, even if the exam is a year or more away - verification paperwork is far easier to assemble in real time than retroactively.
Exam Format, Fee, and Registration Mechanics
The ADCI Air Diving Supervisor Certification Examination is administered online. The published fee is $275, which covers both the examination itself and the certification card issued upon passing. There's no separate card fee layered on top, which simplifies budgeting compared to programs that charge for testing and credentialing separately.
Once you pass, certification is valid for five years. Renewal applications, along with the original application paperwork, go through Skill N Depth, the administrator ADCI uses for processing. Because the exam is online rather than a fixed testing-center event, scheduling flexibility is generally better than paper-based commercial diving credentials - but you should still confirm current windows and any deadlines tied to your specific application cycle. Our dedicated post on exam dates, testing windows, and scheduling deadlines tracks the current cadence in more detail, and the certification cost breakdown covers how the $275 fee fits alongside training expenses you'll have already paid.
| Requirement | Detail |
|---|---|
| Exam delivery | Online ADCI Air Diving Supervisor Certification Examination |
| Fee | $275 (covers exam + certification card) |
| Field days required | 200 as Air Diver |
| Working dives required | 50 as Air Diver |
| Assistant Supervisor days | 30 |
| Formal training baseline | 625 hours or recognized equivalent |
| Certification validity | 5 years |
| Renewal/application administrator | Skill N Depth |
The Content Areas Behind Section 3.4 of the Consensus Standards
The exam content maps to section 3.4 of the International Consensus Standards (edition 6.5, 2025-1), which lays out what a Surface-Supplied Air Diving Supervisor is responsible for on a job site. Rather than memorizing isolated trivia, treat each of these as a working responsibility you'll be tested on and expected to perform:
Supervisor Duties
Covers the authority and responsibility structure on a dive site - who the supervisor answers to, what decisions can't be delegated, and how supervisory sign-off is documented.
- Chain of command during normal and emergency operations
- Supervisor's role in stopping work when conditions are unsafe
Dive Planning
Focuses on translating a job scope into an executable dive plan, including depth, bottom time, gas supply, and personnel assignments appropriate to a surface-supplied air operation.
- Matching dive plans to job conditions and diver qualifications
- Contingency planning for depth or duration changes
Job Hazard Analysis
Tests your ability to identify site-specific hazards before work begins and document mitigation steps in a way that satisfies both crew safety and recordkeeping obligations.
- Environmental, mechanical, and procedural hazard categories
- Communicating hazard analysis findings to the dive team
Crew and Equipment Readiness
Covers verifying that divers, tenders, and support staff are qualified and fit for the assignment, and that surface-supplied air equipment has been inspected and is fit for service.
- Pre-dive equipment checks and readiness sign-off
- Confirming crew certifications and current medical fitness
Emergency Preparation
Focuses on having emergency procedures, equipment, and communication in place before diving starts, not improvised after an incident occurs.
- Emergency evacuation and recompression planning
- Roles and responsibilities during an in-water emergency
Records
Covers the recordkeeping obligations tied to every dive - logs, incident reports, and documentation that support both compliance and future qualification claims.
- Dive log accuracy and retention
- Documentation needed to support future certification or renewal
For a fuller walkthrough of how these content areas interrelate and where exam questions tend to draw scenario-based questions from, see the complete guide to the Air Diving Supervisor content areas.
Building a Study Timeline Around Your Field Experience
Because most candidates arrive at this exam already carrying years of Air Diver field days, studying isn't about learning diving from scratch - it's about reorganizing what you already know into the supervisor's decision-making frame described in section 3.4. A short, focused study window tends to work better than dragging preparation out for months.
Supervisor Duties & Dive Planning
- Review chain-of-command scenarios and stop-work authority
- Practice building dive plans from sample job scopes
Job Hazard Analysis & Crew/Equipment Readiness
- Draft hazard analyses for varied job types
- Walk through pre-dive equipment and crew sign-off checklists
Emergency Preparation & Records
- Rehearse emergency response sequencing
- Review documentation standards for logs and incident reports
Full Review & Mock Scenarios
- Run through scenario-based practice questions across all content areas
- Re-check your qualification paperwork (field days, dives, Assistant Supervisor days) is complete
If you want a condensed reference to keep beside you during this final review week, the one-page cheat sheet of must-know facts is built for exactly this kind of last-pass review, and running timed questions on our practice test platform helps confirm which content areas still need attention before exam day.
Nitrox Endorsement and Other Scope Limitations
One detail that trips up candidates coming from mixed-gas or nitrox-heavy backgrounds: the base Air Diving Supervisor certification authorizes supervision of surface-supplied air operations only. If your work involves nitrox diving, that requires the applicable separate endorsement - it is not automatically included when you pass the standard Air Diving Supervisor exam. Keep this scope distinction in mind when talking to employers about what your certification actually authorizes on a given job.
Who Hires Air Diving Supervisors
Employers looking to fill supervisor roles on surface-supplied air jobs are typically commercial diving contractors handling underwater construction, inspection, salvage, and infrastructure maintenance work where ADCI credentials are the recognized standard. Because certification depends on verified field days, dive counts, and Assistant Supervisor time, employers treat the credential as confirmation that a candidate has already operated successfully under a supervisor before stepping into the role themselves. If you're mapping out what this certification does for your career trajectory and pay, the salary guide and earnings analysis and the broader ROI analysis of whether the certification is worth pursuing are useful next reads. There's also a running list of Air Diving Supervisor job postings and role types if you want to see how the credential shows up in hiring requirements.
Common Mistakes That Delay Certification
- Applying before qualification thresholds are fully met. Falling short on any of the 200 field days, 50 dives, or 30 Assistant Supervisor days will stall an application regardless of exam readiness.
- Treating the exam as the only hurdle. Passing the online exam does not replace the training and experience documentation ADCI requires - both tracks must be satisfied.
- Assuming nitrox authority is included. Supervising nitrox operations requires the separate endorsement, not just the base Air Diving Supervisor certification.
- Missing renewal paperwork at the five-year mark. Since applications and renewals route through Skill N Depth, keep contact and documentation current well before expiration.
- Mixing up study material from other "supervisor" credentials. IMCA and UK ADC materials describe different exams, fees, and standards - cross-referencing them will cost you study time and accuracy.
For a broader look at where candidates typically lose points and how the exam's difficulty compares across content areas, see how hard the Air Diving Supervisor exam actually is and the data-driven look at what's known about pass rates. You can also check the exact passing score requirements so you know precisely what you're studying toward.
Key Takeaway
Treat the exam and the experience/training requirements as two separate finish lines - you need both, and starting your qualification documentation early prevents last-minute delays.
FAQ
The Association of Diving Contractors International (ADCI) administers the Air Diving Supervisor certification, including the online examination and the underlying standards in the International Consensus Standards.
The published fee is $275, which includes both the examination and the certification card once you pass.
You need at least 200 field days as an Air Diver, 50 working dives as an Air Diver, and 30 working days as an Assistant Supervisor, on top of qualified commercial-diver training such as 625 hours of formal instruction or a recognized equivalent.
No. Passing the examination does not replace the training and experience requirements - employer verification, experience records, written appointment, first aid/CPR currency, and medical-fitness provisions must also be satisfied.
Certification is valid for five years. Applications and renewals are processed through Skill N Depth, so keep your documentation and contact details current ahead of your renewal date.