Contractor Lockout
Contractor lockout is the application of a compliant lockout program by a contractor to control hazardous energy during servicing or maintenance. Under WorkSafeBC Part 10, lockout means using a lock to render machinery inoperable or isolate an energy source per a written procedure. Contractors must follow a written procedure, isolate all energy sources, apply personal locks, verify zero-energy state, and coordinate with the host employer before work begins.
On a manufacturing or shop floor, contractor lockout is applied when contractors perform tasks like line teardown, conveyor repair, press maintenance, electrical panel work, confined-space isolation, or jam clearing where safeguarding is removed. The contractor identifies all hazardous energy sources (electrical, mechanical, hydraulic, pneumatic, thermal, gravitational, chemical, or stored energy), notifies affected workers and the host site, shuts down and isolates equipment at each energy-isolating device (breakers, disconnects, valves, switches), and each authorized worker applies a personal lock. Verification of zero-energy state is done by attempting a start or confirming conditions before work. For group lockout, WorkSafeBC requires two qualified workers to manage key control and a checklist, with each worker applying a personal lock.
Is a contractor allowed to use the host employer’s lock?
Not as a substitute for personal lockout control. WorkSafeBC requires each worker to apply a personal lock in group lockout arrangements, and CSA-based guidance emphasizes individually keyed personal locks.
Does tagout alone satisfy contractor lockout in WorkSafeBC jurisdictions?
Not generally. The WorkSafeBC framework centers on physical lockout; tags may be part of the procedure, but the regulatory control is the lock/isolation of the energy source in accordance with a written procedure.
When can a contractor skip lockout?
Only when no hazard exists or where the energy-isolating device is under the worker’s exclusive and immediate control and the equipment is de-energized, as described in Canadian federal procurement guidance and related lockout practice materials.