Skip to main content
Cert Guide

HUET training, explained

Helicopter Underwater Escape Training — the practical survival qualification for personnel travelling by helicopter to offshore installations. A pool-based course built around capsizing a mock helicopter and drilling escape under water.

Issuer
OPITO
Validity
4 years
Duration
1 day
Typical cost
USD 385–700

HUET is the single most important practical drill in offshore-aviation safety. Most fatal helicopter ditching incidents involve workers who could not release their seatbelt or locate an exit underwater. HUET removes that gap — every worker has done the drill, in cold dark water, with their EBS deployed, before they ever board a helicopter to a rig.

What HUET is, and why it exists

HUET drills one specific emergency: a helicopter making an unplanned water landing (a “ditching”) while transporting offshore workers to or from an installation. Civil helicopters are not designed to float upright when fully submerged — most invert when ditched in significant seas, leaving passengers belted into seats that are now upside-down, in cold water, with limited visibility.

The course is built on accident-investigation findings: when ditched helicopters have been recovered, the most common fatal pattern is passengers found still seated, seatbelt unreleased, with no signs of attempted egress. Cold-water shock, disorientation, and the unfamiliarity of inverted underwater conditions overwhelm passengers who have never practised the drill.

HUET puts every worker through the drill — seatbelt release while inverted, exit through window or door, EBS deployment, surface survival — until it becomes muscle memory. The course only takes one day, but it is one of the highest-leverage safety investments in the entire offshore industry.

What the course drills (the 4 core scenarios)

01

Drill 1: Brace position and seatbelt release

Workers practise the helicopter brace position and learn to operate the seatbelt by feel while submerged and inverted. Most fatal helicopter ditching incidents involve passengers failing to release their seatbelt before exiting — this drill is central to the entire course.

02

Drill 2: EBS / CA-EBS deployment

Workers deploy the Emergency Breathing System (or Compressed Air Emergency Breathing System) underwater. The trainer simulates the conditions of an actual ditching — limited time, cold-water shock response, low visibility — and assesses whether the worker can deploy the system reliably.

03

Drill 3: Underwater escape via window or door

The mock helicopter capsizes and submerges. Workers practise locating their nearest exit while inverted, releasing the window or operating the door, and exiting the cabin. Multiple seat positions are rotated through so each worker practises both door and window egress.

04

Drill 4: Group survival after ditching

After exiting the cabin, workers surface and practise group-survival behaviour: forming a huddle, signalling for rescue, conserving body heat, deploying the helicopter's life raft if present, and managing cold-water shock.

HUET vs BOSIET — which one do you need?

HUET (standalone)

  • ·1 day
  • ·USD 385–700
  • ·Helicopter escape drills only
  • ·For aviation roles or short-stay offshore visitors

BOSIET (includes HUET)

  • ·3 days
  • ·USD 900–1,800
  • ·HUET + sea survival + firefighting + first aid + EBS
  • ·For most offshore oil & gas workers

Rule of thumb: if you live and work on the rig (or any installation), you need BOSIET — HUET alone is not enough. If you only travel by helicopter to a location but do not stay overnight or work in a hazardous environment, standalone HUET may be sufficient. Always confirm with the specific operator.

See the full BOSIET guide for what the broader offshore-survival qualification covers.

Who needs HUET

Offshore worker (typically via BOSIET)Helideck OperatorHelicopter aircrewShort-stay technician / inspectorOffshore wind farm workerResearch vessel crewAuditor / journalist (short visits)Subsea ROV pilot

Validity and renewal

OPITO HUET is valid for four years from successful completion — the same validity period as BOSIET.

Renewal is by re-attending the one-day HUET course at any OPITO-approved training centre. There is no separate “HUET refresher” the way BOSIET has FOET — the full HUET course is short enough that re-running it is the standard renewal path.

Some non-OPITO providers issue HUET certificates with shorter validity (2–3 years) or different scope. If you train outside the OPITO system, always confirm operator acceptance before relying on the certificate.

Find an approved HUET training centre

Most offshore workers receive HUET training as part of their BOSIET course rather than as a standalone qualification. If you need standalone HUET (typically for aviation roles, short-stay offshore visitors, or wind-farm work), the OPITO accredited-centre directory is the canonical source for currently-approved providers worldwide.

Official directory
OPITO accredited training centre directory →

Search for OPITO Standard 5095 (HUET) or 5100 (HUET with EBS) to find centres delivering standalone helicopter underwater escape training.

Major providers

The providers that deliver BOSIET also deliver standalone HUET. The same global names dominate the market:

  • Falck Safety Services — Global; HUET pool simulators at every major centre.
  • Petrofac Training Services — UK and Middle East.
  • RGIT Aberdeen — Long-established UK provider.
  • Maersk Training — Multi-region — Denmark, UK, Houston, Brazil, Singapore.
  • FMTC Safety — Netherlands and Norway.
  • 3t Global — UK and Middle East.
  • Wind-specific centres — GWO-approved (Global Wind Organisation) centres also deliver HUET for offshore wind workers; common in Esbjerg, Hull, and Taiwan.

Training hubs by region

Aberdeen, UK

Largest concentration of HUET pool simulators globally.

Stavanger, Norway

NCS market — Falck Nutec, FMTC.

Houston, Texas

Gulf of Mexico market — Falck, Maersk.

Esbjerg, Denmark

Offshore wind and oil and gas hub.

Singapore

Asia-Pacific market — Falck, Maersk.

Perth, Australia

Australian offshore market.

Provider list reflects established long-standing centres as of May 2026 and is not exhaustive. Many other accredited providers exist worldwide. Always verify current accreditation status via the official directory above before booking. CertVault is not affiliated with any listed provider.

Frequently asked questions

What is HUET training?↓
HUET (Helicopter Underwater Escape Training) is a one-day practical survival course for personnel who travel by helicopter to offshore installations. The core of the course is a series of pool-based drills in a mock helicopter cabin (the Helicopter Underwater Escape Trainer) that capsizes and submerges. Trainees practise the brace position, seatbelt release while inverted, deploying an Emergency Breathing System (EBS or CA-EBS), and exiting the cabin through doors or push-out windows.
Is HUET the same as BOSIET?↓
No. HUET is one module inside the broader BOSIET (Basic Offshore Safety Induction and Emergency Training) course. BOSIET is a three-day qualification that covers helicopter escape, sea survival, firefighting, first aid, and EBS use. Standalone HUET is a one-day course that drills only the helicopter-escape portion. Most offshore workers complete BOSIET (which includes HUET); standalone HUET is for roles where full offshore-survival training is not required but helicopter travel still is.
How long does HUET certification last?↓
Under the OPITO standard, HUET is valid for four years from the date of successful completion. Some non-OPITO training providers issue HUET certificates with shorter validity periods (typically 2–3 years), so always confirm with the operator that the specific provider and course meet their requirements.
How much does standalone HUET cost?↓
Standalone HUET typically costs between USD 385 and USD 700 depending on the training provider and country, with European providers charging around EUR 720 (plus VAT). It is significantly cheaper than full BOSIET because it is a one-day course rather than three days. If you only need helicopter-escape competency, standalone HUET is the more efficient choice. If you also need sea survival and firefighting, BOSIET is the better value despite the higher cost.
Who needs HUET training?↓
Anyone who travels by helicopter to an offshore installation. This includes offshore oil and gas workers (almost always via BOSIET rather than standalone HUET), helideck operators, short-stay technicians and inspectors, helicopter aircrew operating to offshore platforms, and personnel travelling to offshore wind farms or research vessels. Standalone HUET is more common in aviation and short-stay roles; offshore workers typically have HUET-included-in-BOSIET.
What is the difference between EBS and CA-EBS?↓
EBS (Emergency Breathing System) refers to older rebreather-style hoods that provide a limited air supply during underwater escape. CA-EBS (Compressed Air Emergency Breathing System) replaced EBS in OPITO standards following industry recommendations — the compressed-air system provides a more reliable air supply at depth. Modern HUET courses train on CA-EBS; older certificates may have been issued with EBS-only training. Some operators require CA-EBS specifically.
Can HUET be done online?↓
No. HUET is entirely practical — the entire course is pool-based with a mock helicopter that capsizes. Theory components can be delivered online beforehand (some OPITO-approved providers offer this), but the underwater escape drills, EBS deployment under water, and brace-position assessments must happen in person at a HUET-approved training centre with the simulator equipment.
What happens if I fail the HUET pool drills?↓
Training centres typically allow multiple attempts at the practical drills under instructor supervision before a final assessment. Workers with significant anxiety about underwater escape can request an additional water-confidence session before the formal assessment. If a worker cannot complete the drills, no HUET certificate is issued and they are not cleared to travel offshore by helicopter. Medical exemptions exist (severe ear conditions, recent surgery) but require operator approval.

Related certifications

BOSIET — full offshore-survival

3-day course that includes HUET plus sea survival, firefighting and first aid.

STCW Basic Safety Training

The maritime equivalent — covers personal survival, fire prevention, first aid, personal safety.

Offshore Oil & Gas industry guide

Full cert reference: BOSIET, HUET, IWCF, OGUK Medical, MIST, OPITO certs.

OPITO official site →

Issuing body. Approved training centres, standard versions, course listings.

Track HUET expiry across your offshore certs

CertVault stores HUET, BOSIET, OGUK Medical, IWCF and every other offshore certification — and alerts you 60 days before any expire. Free forever for workers.

Create free worker profile →Hire HUET-current workers →

This guide is based on publicly available OPITO standards and training-provider documentation as of May 2026. Always verify current requirements with your operator or OPITO directly.