Group Lockout Safety
Posted by Zing Safety on Apr 8th 2021
Group Lockout Safety Guide
When maintenance or repair involves a team, the lockout process must offer protection equal to personal devices. Learn best practices for compliant and efficient group lockout.
What is Group Lockout?
When service is performed by two or more authorized employees or teams, group lockout procedures must be observed. A primary authorized employee coordinates the process, ensuring every worker applies their personal lock before starting and removes it when finished.
Tip: Clear, machine-specific procedures reduce confusion and errors. The more detailed your written steps, the safer your team will be.
Best Practices & Devices
Group lockout provides the same protection as individual lockout but improves efficiency when multiple energy points are involved. The team leader isolates all energy points, then secures the keys in a group lockout box. Every authorized employee adds their personal lock to the box, ensuring the equipment cannot be re-energized until all locks are removed.
Using keyed-alike locks simplifies the process further. Keys and extras are stored in the box and secured by the lead’s personal lock after testing for zero energy. A second supervisor can verify for added safety.
The two most common group lockout devices are:
- Multi-lock hasp – Best for equipment with one or few isolation points; each worker adds their personal lock.
- Group lockout box – Ideal for multiple energy sources; securely stores keys while all employees lock the box itself.
If a machine has many energy points, a group lockout box is typically more efficient. Fewer steps reduce opportunities for error while maintaining protection. Choose box materials and size based on your environment—stainless steel for outdoor or harsh conditions—and involve your team in selecting the best devices.
What About Work Authorization Permits?
While OSHA doesn’t require work authorization permits, many facilities use them for added clarity. If used, include them in your lockout procedure and ensure each permit specifies the machine, energy types, and safe-work steps. Learn more at OSHA's Group Lockout Hot Topics.
Build a Compliant Group Lockout Program
Explore durable, eco-responsible LOTO devices designed for safety and compliance.
Shop LOTO Devices