Confined spaces are some of the most hazardous work environments, often with limited entry, poor ventilation, and serious risks like toxic gases. To protect workers and stay OSHA compliant, companies must do more than just provide training—they need consistent practice. Conducting quarterly confined space drills builds preparedness, ensures procedures stay fresh, and highlights areas for improvement.

This blog will walk you through a step-by-step checklist and best practices for making your confined space drills more effective.

Why Quarterly Drills Matter

• Reinforce OSHA compliance requirements

• Strengthen worker muscle memory for emergencies

• Identify gaps in equipment, communication, or training

• Build confidence in teams handling high-risk environments

Confined Space Drill Checklist

1. Pre-Drill Preparation

• Review existing permit space program

• Ensure rescue equipment is available and functional

• Assign roles: entrant, attendant, supervisor, and rescue team

2. Communication Systems Check

• Test radios or communication devices before entry

• Establish clear emergency signals

3. Hazard Simulation

• Introduce a simulated hazard (low oxygen, toxic gas alarm, or entrapment)

• Train workers to respond quickly and correctly

4. Rescue Team Response

• Ensure rescue teams practice both non-entry rescue (retrieval systems) and entry rescue when required

• Time the response to measure efficiency

5. Debrief and Documentation

• Review performance as a team

• Document lessons learned and update procedures

Best Practices for Successful Drills

• Keep drills unannounced to test real readiness

• Rotate roles so everyone practices different responsibilities

• Incorporate new technology like gas monitors and rescue retrieval systems

• Track performance metrics (time to evacuate, communication success, hazards identified)

Common Mistakes to Avoid

• Running drills only on paper instead of hands-on practice

• Failing to involve the rescue team

• Using outdated or untested safety equipment

• Not recording or reviewing drill outcomes

Conclusion

Quarterly confined space drills aren’t just a compliance requirement—they’re a life-saving habit. By following a structured checklist and refining your approach each quarter, your team will be better equipped to handle confined space emergencies with confidence.

Is your team ready for the next drill? Start planning today to strengthen both safety and compliance.