This page covers operational frameworks for emergency response in commercial diving operations. It documents response structures, responsibility boundaries, and decision-making frameworks—not step-by-step rescue procedures.
Why This Exists
Emergency response requires clear frameworks: who responds, how decisions are made, and what resources are available. This page provides the operational structure for emergency response, not medical or rescue instruction.
Who This Is For
- Dive supervisors planning emergency response
- Safety officers developing emergency procedures
- Operations managers ensuring emergency readiness
- Auditors reviewing emergency procedures
Emergency Response Structure
Response Roles
Emergency response requires defined roles:
- Incident commander — Overall responsibility for emergency response
- Dive supervisor — Diving-specific response coordination
- Standby diver — Immediate response capability
- Medical support — Medical response (if available)
- Surface support — Surface equipment and personnel
Responsibility boundaries: Each role must have clear responsibilities. Ambiguity in roles leads to delayed or incorrect response.
Decision-Making Authority
Emergency response requires clear decision-making:
- Who decides — Who has authority to make emergency decisions?
- Decision criteria — What criteria guide emergency decisions?
- Escalation — When are decisions escalated?
- Documentation — How are emergency decisions documented?
Operational reality: Emergency decisions must be made quickly. Decision-making authority must be clear and documented.
Resource Availability
Emergency response requires resources:
- Personnel — Trained personnel available for response
- Equipment — Emergency equipment ready and functional
- Communication — Communication systems for coordination
- Medical — Medical support available (if applicable)
What can go wrong: Resources not available, resources not ready, resources not sufficient. Emergency readiness must be verified.
Emergency Categories
Diver Emergency
Emergency involving the diver:
- Loss of communication — Diver cannot communicate
- Equipment failure — Critical equipment failure
- Medical emergency — Medical issue requiring response
- Entanglement — Diver entangled and unable to free self
Response framework: Standby diver deployment, surface support, medical response (if applicable). Specific procedures depend on circumstances.
Surface Emergency
Emergency involving surface systems:
- Gas supply failure — Loss of primary gas supply
- Communication failure — Loss of communication systems
- Equipment failure — Critical surface equipment failure
- Personnel emergency — Medical emergency on surface
Response framework: Backup systems activation, alternative procedures, medical response (if applicable).
Environmental Emergency
Emergency due to environmental conditions:
- Rapid weather change — Weather conditions deteriorate
- Current increase — Current becomes too strong
- Visibility loss — Visibility becomes insufficient
- Marine life — Dangerous marine life encounter
Response framework: Mission abort, diver recovery, surface operations secured.
Response Procedures
Immediate Response
Immediate actions upon emergency recognition:
- Recognize emergency — Identify that emergency exists
- Alert team — Alert response team
- Initiate response — Begin response procedures
- Monitor situation — Continuously monitor situation
What can go wrong: Emergency not recognized, alert not sent, response delayed, situation not monitored. Immediate response must be practiced and automatic.
Response Execution
Execution of response procedures:
- Follow procedures — Execute documented procedures
- Adapt as needed — Adapt procedures to circumstances
- Coordinate resources — Coordinate available resources
- Document actions — Document all response actions
Operational reality: Procedures provide framework, but response must adapt to circumstances. Documentation is essential for post-incident review.
Post-Emergency
Actions after emergency resolved:
- Secure situation — Ensure situation is secure
- Assess condition — Assess condition of personnel and equipment
- Debrief — Conduct debrief of response
- Document incident — Document incident and response
Responsibility: Supervisor ensures proper post-emergency procedures. Documentation is essential for learning and improvement.
Communication During Emergency
Emergency Communication
Communication during emergency:
- Alert communication — How emergency is communicated
- Status updates — Regular status updates during response
- Resource coordination — Communication for resource coordination
- External communication — Communication with external resources (if needed)
What can go wrong: Communication breakdown, unclear communication, delayed communication. Emergency communication must be practiced and reliable.
Backup Communication
Backup communication methods:
- Alternative systems — Alternative communication systems
- Visual signals — Visual signals when communication lost
- Surface-to-surface — Surface-to-surface coordination
- External resources — Communication with external resources
Operational reality: Backup communication is essential. Single point of failure is unacceptable.
Medical Considerations
Medical Support
Medical support availability:
- On-site medical — Medical personnel on-site (if available)
- Remote medical — Remote medical consultation (if available)
- Medical equipment — Medical equipment available
- Evacuation — Medical evacuation capability (if available)
Operational reality: Medical support varies by operation. Operations must plan for available medical support.
Medical Decision-Making
Medical decision-making during emergency:
- Who decides — Who has medical decision-making authority?
- Decision criteria — What criteria guide medical decisions?
- Documentation — How are medical decisions documented?
Legal sensitivity: Medical decisions have legal implications. Decision-making authority must be clear and documented.
Training & Readiness
Emergency Training
Emergency response training:
- Regular training — Regular emergency response training
- Scenario training — Training in realistic scenarios
- Role training — Training for specific roles
- Refresher training — Regular refresher training
What can go wrong: Training not conducted, training not realistic, training not sufficient. Emergency training must be regular and realistic.
Readiness Verification
Verification of emergency readiness:
- Equipment checks — Regular equipment readiness checks
- Personnel verification — Verification of trained personnel availability
- Procedure review — Regular review of emergency procedures
- Drill execution — Regular emergency drills
Operational reality: Readiness must be verified, not assumed. Regular verification is essential.
Documentation Requirements
Emergency response documentation must include:
- Emergency description — What emergency occurred
- Response actions — What actions were taken
- Decision-making — How decisions were made
- Outcome — What was the outcome
- Lessons learned — What was learned
Audit requirement: Emergency response documentation must be suitable for regulatory review and incident investigation.