- What "Passing Score" Really Means for This Credential
- The Eligibility Bar You Must Clear Before the Exam Even Counts
- Inside the Online ADCI Air Diving Supervisor Examination
- Section 3.4 Content Areas the Exam Draws From
- Why a High Score Doesn't Guarantee Certification
- Registration Mechanics: Fee, Card, and Renewal Timeline
- Exam Requirement vs. Experience Route
- Building a Study Plan Aligned to Standard 6.5
- Nitrox Endorsement and Other Add-Ons
- Keeping ADCI Prep Separate from IMCA and UK ADC
- FAQ
- There is no separate "passing score" that overrides experience - ADCI requires 200 field days, 50 working dives, and 30 days as Assistant Supervisor first.
- The credential is earned through an online ADCI Air Diving Supervisor Certification Examination, not an in-person proctored test.
- The $275 fee covers both the examination and the certification card issued through Skill N Depth.
- Exam content is anchored to International Consensus Standards, edition 6.5, 2025-1, section 3.4.
What "Passing Score" Really Means for This Credential
Search "ADC-AIR-DIVING-SUPERVISOR passing score" and you'll find a lot of noise about percentage thresholds, scaled scores, and cut lines borrowed from unrelated credentials. None of that applies here. The Air Diving Supervisor certification issued by the Association of Diving Contractors International (ADCI) is not built around a single publicized numeric cutoff the way some proctored professional exams are. Instead, "passing" this credential is a two-part event: you have to pass the online ADCI Air Diving Supervisor Certification Examination, and - separately - you have to already meet the field-experience and training prerequisites the exam is layered on top of.
That distinction matters more than any hypothetical score. A candidate who is technically capable of answering exam questions correctly but hasn't logged the required field days is not eligible to sit the exam in the first place. Understanding this sequencing is the real "passing score" conversation for this credential, and it's covered in more depth in our ADC-AIR-DIVING-SUPERVISOR Requirements guide.
The Eligibility Bar You Must Clear Before the Exam Even Counts
Before you ever log into the online examination, ADCI expects documented proof of the following:
- At least 200 field days as an Air Diver - verified time in the water and on the job, not classroom time.
- At least 50 working dives as an Air Diver - actual working dives, tracked and attestable.
- At least 30 working days as an Assistant Supervisor - direct exposure to supervisory duties under a certified supervisor.
- Completion of the standard training route, which includes 625 hours of formal instruction or a recognized equivalent, built on top of qualified commercial-diver training.
- Employer verification and experience records, plus a written appointment confirming your role.
- Current first aid/CPR certification and applicable medical-fitness provisions.
None of these are exam topics you study for - they're documentation you assemble. If you're still accumulating field days or dive counts, your time is better spent on logging and verification than on question banks. Once the eligibility file is complete, the exam becomes the final formality that confirms your knowledge matches your experience. For a full walkthrough of how these prerequisites interact, see the requirements breakdown and the Air Diving Supervisor Certification overview.
Inside the Online ADCI Air Diving Supervisor Examination
The Air Diving Supervisor credential is validated through an online ADCI Air Diving Supervisor Certification Examination. This is a defined, structured test administered under ADCI's process rather than an open-book review. Candidates should expect the exam to draw directly on supervisory duties, dive planning, job hazard analysis, crew and equipment readiness, emergency preparation, and recordkeeping - the exact areas laid out in section 3.4 of the International Consensus Standards.
Because the exam is delivered online, preparation should focus on being able to apply standards language to realistic supervisory scenarios rather than memorizing isolated facts. If you're unsure how the content is organized, the Exam Domains guide breaks down how these topic areas map to what you'll actually see on screen.
Key Takeaway
Treat the online exam as a checkpoint on judgment and standards knowledge, not a race against a hidden percentage. Your prep time is best spent rehearsing how you'd apply section 3.4 to real dive-planning and emergency scenarios.
Section 3.4 Content Areas the Exam Draws From
All exam content traces back to the International Consensus Standards, edition 6.5, 2025-1, section 3.4. This section defines what a certified Air Diving Supervisor is accountable for on the job, and it's the closest thing to an official syllabus for the exam.
Supervisor Duties
What candidates must understand: the scope of authority and responsibility a supervisor holds on an air-diving job, including sign-off authority and accountability for crew safety.
- Chain of command during live diving operations
- Documentation the supervisor is personally responsible for
Dive Planning
What candidates must understand: how to plan an air dive around depth, bottom time, gas supply, and personnel assignments before anyone enters the water.
- Matching dive plans to job scope and site conditions
- Contingency planning built into the pre-dive plan
Job Hazard Analysis
What candidates must understand: identifying site-specific hazards and translating them into control measures the crew actually follows.
- Hazard identification tied to the specific worksite, not generic checklists
- Communicating hazard controls to the full dive team
Crew and Equipment Readiness
What candidates must understand: verifying personnel qualifications and equipment condition before operations begin, and knowing when to stand down.
- Pre-dive equipment inspection responsibilities
- Confirming crew certifications and fitness
Emergency Preparation
What candidates must understand: having a rehearsed, resourced emergency response plan specific to the dive site and job, not a generic template.
- Emergency evacuation and recompression logistics
- Roles and communication during an incident
Records
What candidates must understand: what must be logged, retained, and made available, and why supervisor recordkeeping carries legal and safety weight.
- Dive logs, decompression records, and incident documentation
- Retention expectations tied to the supervisor role
For a topic-by-topic study checklist mapped to these six areas, pair this section with the Study Guide and the Cheat Sheet for quick review.
Why a High Score Doesn't Guarantee Certification
This is the single most misunderstood point about the Air Diving Supervisor credential: passing the examination does not replace the training and experience requirements. Even a strong exam performance means nothing if your field days, working dives, Assistant Supervisor time, or employer verification aren't in order. ADCI treats the exam as confirmation of knowledge sitting on top of already-proven field competence - not a shortcut around it.
This is different from certifications where a passing score alone unlocks the credential. Here, the exam and the experience file are both required, independently, before certification is issued. If you're trying to gauge how difficult the overall process is, this dual requirement is a bigger factor than question difficulty - see the Difficulty Guide for a fuller picture.
Registration Mechanics: Fee, Card, and Renewal Timeline
The published fee for the Air Diving Supervisor Certification Examination is $275, and this covers both the examination itself and the certification card once you pass and your eligibility file is approved. Applications and renewals run through Skill N Depth, and certification, once issued, is valid for five years.
- One fee covers exam access and the physical/digital certification card
- Renewals are processed through Skill N Depth, not ADCI directly
- Five-year validity means you should plan renewal documentation well ahead of expiration
For a complete breakdown of what this fee does and doesn't include, and how it compares across the qualification pathway, read the Certification Cost breakdown.
Exam Requirement vs. Experience Route
| Requirement Type | What It Involves | Where It's Verified |
|---|---|---|
| Field Experience | 200 field days as an Air Diver | Employer verification / experience records |
| Working Dives | 50 working dives as an Air Diver | Documented dive logs |
| Supervisory Exposure | 30 working days as an Assistant Supervisor | Written appointment, employer records |
| Formal Training | 625 hours of instruction or recognized equivalent | Training provider records |
| Knowledge Validation | Online ADCI Air Diving Supervisor Certification Examination | ADCI online exam platform |
| Certification Fee | $275 covering exam and certification card | Skill N Depth |
Building a Study Plan Aligned to Standard 6.5
Once your experience file is squared away, structure your remaining prep time around the section 3.4 topic areas rather than a generic study calendar. A short, focused timeline works better than a long, unfocused one.
Standards Fluency
- Read section 3.4 of the International Consensus Standards, edition 6.5, 2025-1, in full
- Map each subsection to supervisor duties, dive planning, and JHA
Operational Scenarios
- Work through crew/equipment readiness and emergency preparation scenarios
- Practice writing a job hazard analysis for a hypothetical air-diving job
Records and Review
- Review recordkeeping obligations and documentation retention
- Run through the Cheat Sheet and flag weak areas
Final Confirmation
- Confirm eligibility documentation is complete before scheduling the exam
- Run timed practice on the main practice test platform to simulate exam pacing
This timeline assumes your field days, dive counts, and Assistant Supervisor time are already documented. If they're not, that paperwork trail - not additional study time - is your actual critical path to certification.
Nitrox Endorsement and Other Add-Ons
The base Air Diving Supervisor certification covers surface-supplied air diving supervision only. If your work involves nitrox, you'll need the applicable separate endorsement - it is not automatically bundled into the standard air-diving credential or its $275 exam fee. Confirm with Skill N Depth whether the nitrox endorsement requires a distinct application before you plan your job assignments around it.
Keeping ADCI Prep Separate from IMCA and UK ADC
One of the most common mistakes candidates make is blending study material from IMCA supervisor schemes or the UK ADC into their ADCI preparation. These are separate organizations with separate standards documents, separate exam formats, and separate terminology. For this credential, your only reference points should be ADCI's own materials: the International Consensus Standards, edition 6.5, 2025-1, and the official ADCI application and exam documentation. Mixing frameworks is a fast way to memorize the wrong answer to a question that looks familiar but isn't. If you want a grounded overview of exactly what this credential is (and isn't), start with What Is ADC-AIR-DIVING-SUPERVISOR? and the Meaning guide.
Key Takeaway
Study only from ADCI's own standards and application documents. Material written for IMCA or UK ADC supervisor programs will not match the terminology or structure of the ADCI exam.
If you're weighing whether this credential fits your career trajectory before committing time to the experience requirements, the ROI analysis and Salary Guide lay out the broader picture, and ADC-AIR-DIVING-SUPERVISOR Jobs covers who typically hires for the role. You can also run through timed scenario questions on our practice test platform to get comfortable with the exam's pacing before you sit the real thing.
Frequently Asked Questions
ADCI's public materials do not publish a specific percentage cutoff for the online examination. The credential's real gating factor is the combination of the exam and the field-experience requirements, both of which must be satisfied.
No. The 200 field days as an Air Diver, 50 working dives, and 30 days as an Assistant Supervisor are prerequisites. Passing the exam does not substitute for these experience requirements.
It covers the online ADCI Air Diving Supervisor Certification Examination and the certification card issued once you pass and your eligibility is confirmed.
Certification is valid for five years, with applications and renewals processed through Skill N Depth.
No. Nitrox supervision requires the applicable separate endorsement in addition to the base Air Diving Supervisor certification.
The bottom line: chasing a mythical "passing score" for the Air Diving Supervisor exam is the wrong focus. Get your field days, working dives, Assistant Supervisor time, and employer verification locked down first, study section 3.4 of the current International Consensus Standards closely, and treat the online exam as the final confirmation of knowledge you've already earned in the field.