OPITO BOSIET — Basic Offshore Safety Induction and Emergency Training — Study Guide

OPITO BOSIET — Basic Offshore Safety Induction and Emergency Training — Study Guide

1. Credential at a Glance

What it signals: You are fit and trained to travel offshore by helicopter, survive a ditching, abandon a platform, fight an incipient fire, and administer basic first aid. It is not a technical credential — it is the industry's license to be transported to the workplace. No BOSIET, no chopper, no job.

2. Pathway — How It Is Earned

1. Get the medical first: book an OGUK (or equivalent) offshore medical — BOSIET centers will turn you away without a valid certificate. The medical covers fitness for HUET (including the underwater escape module) and general offshore fitness.
2. Book at an OPITO-approved center (check the OPITO approvals register — non-approved "BOSIET-like" courses don't count).
3. Complete the 3 days: safety induction, helicopter safety/HUET, sea survival, firefighting, first aid. Each module has practical competence checks (e.g., escaping the HUET simulator inverted and submerged, righting and boarding a life raft, extinguishing live fires).
4. Receive certification valid 4 years.
5. Before expiry, take FOET (1-day refresher). Let it lapse and you're back to day one of BOSIET.
6. Add-ons as required by region/operator: CA-EBS (compressed-air emergency breathing system) training where mandated, MIST (Minimum Industry Safety Training) for UKCS, and operator-specific inductions.

3. Knowledge Domains

3.1 Offshore Safety Induction

• Offshore hazards: hydrocarbon releases, dropped objects, helicopter operations, crane operations, simultaneous operations (SIMOPS).
• Permit-to-work system, safety observation systems (e.g., stop-work authority — anyone can stop an unsafe job offshore, and the exam/assessor expects you to say so).
• Muster stations, alarms (general platform alarm vs prepare-to-abandon), and the chain of command in an emergency (OIM has ultimate authority).

3.2 Helicopter Safety and HUET

• Helicopter travel: survival suit donning, pre-flight briefing, seating and brace positions, emergency exits.
• CA-EBS: compressed-air emergency breathing system — when fitted, know deployment, purging, and the breath-hold discipline it enables. (Requirements vary by region; the UKCS mandates it.)
• HUET practical: escape from a submerged, inverted cabin simulator — the graded skill is wait for motion to stop, release harness, follow the exit (panic-kicking fails people). Reference points, hand-over-hand exit technique.

3.3 Sea Survival

• Abandonment: when the OIM orders it, how to enter the water (step off, don't jump, from the lowest safe point), lifejacket and survival suit function.
• Life rafts: righting an inverted raft, boarding, immediate actions (cut painter, stream drogue, assign lookouts), signaling.
• Hypothermia: heat-escape-lessening posture (HELP), huddling, why the survival suit's seals matter more than its insulation.
• Rescue: helicopter winching strop discipline (arms down, don't grab the hook), fast-rescue craft approach.

3.4 Firefighting and Self-Rescue

• Fire triangle/tetrahedron, classes of fire, extinguisher selection (water, foam, CO₂, dry powder — and which to never use on which fire).
• Practical: approaching a live fire with an extinguisher (upwind, PASS technique), hose-reel use, smoke-filled compartment behavior (stay low, feel doors).
• Self-rescue: escape sets / smoke hoods — donning under stress is the assessed skill.

3.5 Emergency First Aid

• Primary survey (DRABC: danger, response, airway, breathing, circulation), recovery position, CPR basics, severe bleeding control, treatment of shock and burns, casualty handling pending the platform medic. Offshore first aid is about stabilize and hand over — know your limit.

4. Key Numbers (units + assumptions)

• Course: 3 days initial; FOET: 1 day; validity: 4 years.
• Minimum age: 16.
• Helicopter underwater escape: breath-hold discipline measured in seconds — train for calm, not speed.
• Survival time in cold water without a suit: minutes, not hours (UKCS water ~5–10°C → functional incapacitation in ~10–15 min) — this is why the suit and the drills exist.
• Muster: be able to reach your muster station within the platform's designated time (know your station before you need it).

5. Worked Examples (scenario walkthroughs)

Example 1 — Ditching. Helicopter ditches on approach. Sequence: brace on command, wait for motion to stop after impact, release harness (one hand on the reference exit point), egress hand-over-hand, inflate lifejacket after clearing the cabin (inflating inside traps you), swim clear, deploy CA-EBS only if trained and fitted. The assessed error is inflating the jacket inside the cabin.

Example 2 — Prepare to abandon. General alarm sounds, announcement: "prepare to abandon." Actions: muster at station with survival suit and lifejacket donned, headcount, await OIM's order — do not enter the water or lifeboats on the general alarm alone. Boarding lifeboats/rafts happens on the abandon order. Entering the water: step off from the lowest safe point, HELP position once clear.

Example 3 — Galley fire. Small pan fire: smother (lid/fire blanket) before reaching for an extinguisher; if it spreads, raise the alarm, attack upwind with the correct extinguisher (dry powder or CO₂ for a fat fire — never water on burning oil), and retreat if smoke banks down. The graded judgment: knowing when to fight and when to withdraw and muster.

Example 4 — Casualty on the drill floor. Worker collapses near rotating equipment. DRABC: ensure the area is safe (stop the equipment — danger to rescuer first), check response, open airway, check breathing, start CPR if absent, send someone to raise the alarm and fetch the medic/AED. Offshore rule: never become the second casualty.

Example 5 — Missed FOET window. Your BOSIET expired last month and you're offered a hitch. There is no grace-period shortcut: you repeat the full 3-day BOSIET. The lesson the industry wants learned: diary-manage the 4-year cycle (set the reminder at 3.5 years).

6. Standards/Regulations Cross-Reference

• OPITO standards (BOSIET, FOET, MIST, CA-EBS) — the training standard itself; centers are audited against it.
• OGUK medical / ENG1 — fitness prerequisites; national variants apply (e.g., Norwegian petroleum medical).
• Helicopter operations: governed by aviation regulation plus industry standards (e.g., HeliOffshore guidance, IOGP Report 690 for offshore helicopter operations awareness).
• Platform emergency response: PFEER (UK: Prevention of Fire and Explosion and Emergency Response Regulations) — the regulatory backbone of muster/abandon systems on the UKCS; equivalent goal-setting regimes elsewhere (e.g., BSEE SEMS Subpart S in the US OCS).
• Maritime: SOLAS life-saving appliance requirements underpin lifeboat/raft standards.

7. Pitfalls, Traps, and Exam Strategy

• The medical is the gate. Book it early; some conditions require specialist sign-off and lead time.
• HUET is 90% composure. The people who fail are the ones who rush. Slow is smooth, smooth is fast — wait for the simulator to stop moving.
• FOET deadline discipline: the 4-year clock is absolute. Put it in your calendar at booking, not at expiry.
• CA-EBS and MIST are regional add-ons — confirm what your destination installation requires before you fly; showing up without the right add-on means a wasted trip.
• This is competence-based assessment, not an exam to cram. You cannot pass HUET or the fire ground from a book. Arrive fit, rested, and honest about swimming ability.
• Stop-work authority is the cultural point assessors probe in the induction module: anyone, any rank, can stop an unsafe job. Say it like you mean it.

8. Practice Problems (with answers)

P1. Your FOET is due in 6 weeks and your BOSIET expires in 8. When do you book FOET? Answer: Now — complete it before expiry; cutting it close risks a lapse that forces the full 3-day course.

P2. The helicopter ditches. When do you inflate your lifejacket? Answer: After egressing the cabin — never inside.

P3. General alarm sounds with no announcement yet. Do you abandon? Answer: No — muster at your station, don suit/jacket, await the OIM's orders. Abandon only on the abandon order.

P4. A fat fire spreads across a galley range. Which extinguisher, and from where? Answer: Dry powder or CO₂ (never water on burning oil/fat); attack from upwind, PASS technique, retreat if smoke banks down or it grows beyond incipient stage.

P5. You find a casualty not breathing near moving machinery. First action? Answer: Make the scene safe (stop the machinery / isolate the hazard) — then DRABC. Rescuer safety first.

P6. Why does the industry require CA-EBS in some regions for helicopter transit? Answer: To extend survivable breath-hold time during underwater escape after ditching, increasing the chance of successful egress from a submerged cabin.

Original ETS reference writing, verified against public sources on 2026-09-30. Thin sourcing is flagged inline. Not legal advice — confirm current editions with the issuing body.