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Equipment checklists by diving mode

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This is not a complete list or an inspection standard. Use the standard and the manufacturer's instructions.

These are general categories to help you build your own checklist. What is actually required, and how it is examined and certified, is set by the standard for your project:

  • IMCA D 014, IMCA D 018 (plant examination and certification) and the IMCA DESIGN documents (D 023, D 024, D 037);
  • HSE L103/L104;
  • OSHA 1910.430 (equipment);
  • the ADCI Consensus Standards;
  • AS/NZS 2299.1;
  • NORSOK U-100.

We do not recommend any brand.

Categories for every mode

  • Primary and reserve breathing gas. Gas for the plan plus the reserves the standard requires, every gas analysed and labelled, and compressor air-quality test records.
  • The diver's emergency gas supply (bailout). Present, charged, analysed, checked by the diver and recorded.
  • Dive control and communications.
    • Diver-to-surface comms tested before each dive, with back-up comms.
    • Depth monitored with the dive system's instrument, such as a pneumofathometer. A phone does not measure depth.
    • Comms and depth recorded.
  • Umbilicals and lines. Inspection and test records, correct make-up, length markings.
  • Helmets and masks. Pre-dive checks to the manufacturer's instructions, and maintenance records.
  • Standby diver equipment. Dressed in and equivalent to the working diver's.
  • Launch and recovery. Stage, basket, ladder or LARS, with lifting certification and a plan for recovering an injured diver.
  • Chamber or decompression facility. Available as the standard requires for the depth and decompression in the plan, with its own records.
  • First aid and oxygen. A first aid kit, oxygen for administration, trained people, the emergency contact list and the nearest hyperbaric facility.
  • Rescue. A rescue plan, the means to recover an unconscious diver, and records of drills.
  • Plant examination and certification records. Current, in date and available on site (see IMCA D 018).

Notes by mode

ModeExtra categories to checkSee
Scuba (where permitted)Cylinder test dates, tether or buddy arrangements, standby kitOSHA 1910.424; HSE L104; ADCI; AS/NZS 2299.1
Surface-supplied airDive control panel, primary and secondary supply, high-pressure reserve, umbilicals, chamber where requiredOSHA 1910.425; IMCA D 014; HSE L103/L104
Surface-supplied nitrox or mixed gasOxygen-compatible plant, gas analysis, gas-switching proceduresOSHA 1910.426; IMCA D 014; HSE L103
Wet bellBell gas supply, bell emergency gas, LARS, chamber on siteIMCA D 014; IMCA DESIGN documents; HSE L103
SaturationChamber complex, life support, hyperbaric evacuation arrangements, bell systemsIMCA D 014; IMCA DESIGN documents; NORSOK U-100; HSE L103
Contaminated waterDiver isolation, decontamination, suitable suits and helmetsThe hazard sections of the standards above; the client's risk assessment

In DIVEOPS PRO

Record the checks you did in your dive plan. DIVEOPS PRO stores records. It does not inspect, certify or measure anything, and it does not plan decompression.


General information, not legal, medical or safety advice. Your legal duties, the applicable standard and your own risk assessment govern. See the standard. Rules and standards change: check the current official text.

Frequently asked questions

Is this a complete equipment list or an inspection standard?

No. These are general categories to help you build your own checklist. What is actually required, and how it is examined and certified, is set by the standard for your project and the manufacturer's instructions.

Which standards set commercial diving equipment requirements?

Depending on your project: IMCA D 014, IMCA D 018 and the IMCA DESIGN documents, HSE L103/L104, OSHA 1910.430, the ADCI Consensus Standards, AS/NZS 2299.1 or NORSOK U-100. Always check the current edition.

Can a phone measure a diver's depth?

No. Depth is monitored with the dive system's instrument, such as a pneumofathometer. A phone does not measure depth.

What does DIVEOPS PRO do with equipment checks?

Record the checks you did in your dive plan. DIVEOPS PRO stores records. It does not inspect, certify or measure anything, and it does not plan decompression.

Sources

  1. IMCA D 014, IMCA international code of practice for offshore diving (Rev. 3.3, March 2025 when checked on 20 Oct 2026; check current revision)
  2. IMCA D 018, Code of practice for the initial and periodic examination, testing and certification of diving plant and equipment (catalogue lists a June 2026 update; check current revision)
  3. IMCA DESIGN documents D 023, D 024, D 037 (diving system design and audit guidance; listed in the catalogue as updated in 2026, check current revision)
  4. HSE L103, Commercial diving projects offshore, ACoP, 2nd edition, 2014
  5. HSE L104, Commercial diving projects inland/inshore, ACoP, 2nd edition, 2014
  6. OSHA 29 CFR 1910.430, Equipment (Subpart T)
  7. ADCI International Consensus Standards for Commercial Diving and Underwater Operations (check current edition)
  8. AS/NZS 2299.1, Occupational diving operations, Part 1 (check current edition)
  9. NORSOK U-100:2023, Dykkeoperasjoner (Diving operations)
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