Tagout-Only System

A tag is a prominent warning device that clearly states that the equipment must not be operated. Tags are essentially warning devices and do not provide the physical restraint of a lock. Tags may evoke a false sense of security. For these reasons, OSHA considers tagout devices to be less secure and effective than lockout devices in protecting employees from hazardous energy.

To use a tagout system, employers must meet all the requirements of the 1910.147 standard, which include:

• Additional training.
• More rigorous periodic inspections.
• Additional safety measures. These might include removing and isolating a circuit element, blocking a controlling switch, opening an extra disconnecting device, or removing a valve handle to reduce the potential for inadvertent energization.

There are only two situations in which a tagout system may be used:

1. If the EID cannot be locked out. Attach the tag directly to the EID. If it cannot be attached directly, it must be put in an obvious place, as close the EID as possible.
2. If the EID can be locked out, but the employer demonstrates that a tagout system will provide employees protection equal to a lockout system. The tags must be attached where the lockout devices would have been attached. If the employer cannot demonstrate equal protection, the EID must be locked out.