Individually keyed lock and information tag

by Sep 7, 2017Lockout

Lockout: Individually keyed lock and information tag


The ROHS define the “individually keyed” concept in the section 188.1 as a special layout of the components of a lock making it possible to open it with a single key.

The safety lock is the centrepiece of any lockout tag out procedure used to keep, mechanically, the energy isolating devise or lockout device in a safe position.

It is right that the definition of “individually keyed” and “safety lock ” seems to be obvious, however, is becomes more complicated to assimilate in a real work environment context.

With several types of locks and different uses, locks management should be considered as an essential task to reach an optimal efficiency of a lockout program.


Personal lock

  • Used by a worker to ensure personal lockout protection such that each lock when applied is operable only by a key in the worker’s possession
  • The name of the person must be clearly indicated on the individually keyed lock
  • If the employer provides locks with no name indication, then he must keep a record containing lock information

Information on tag

  • The tag, eventually, attached to the personal lock.
  • The reason for the lockout.
  • The name of the person who applied the lockout.
  • The date that the lockout was applied.
  • May contain the name of the equipment in lockout.
  • Indications like “Danger Do Not Start” or “Danger Do Not Operate” are usually written on the tag.


 Group or multiple lockout locks

  • It’s a set of “keyed alike” locks (set of locks with a single key) used in group lockout situations, so workers can put their locks on the box containing the key (lockout box) instead of locking each energy-isolating device separately.
  • Number of locks in the set should be indicated on the locks or the attached tags.


 Control, transition or departmental lock

  • This type of lock replaces a personal lock when the worker must leave the worksite at the end of the shift or to lockout a piece of equipment for one or more days, it is also used by a supervisor to keep the equipment locked out to control and supervise the unlocking operation.
  • In all cases, the reason for using this lock must be indicated on the attached tag


 Borrowing lock

  • Used when workers need more locks than they have as personal, or borrowed to external contractors.
  • Borrowing locks must have a distinct color.
  • It is also mandatory to keep a record containing name of the person, time and date at which the lock is given and returned and the reason of the borrowing.


For more information, contact us!

Tell us about your needs and an expert will answer you!

Intervention Prévention Inc.

Intervention Prévention concentrates its operations in the field of work safety, offering specialized services following Standards CSA Z462 – Workplace Electrical Safety, CSA Z460 – Control of Hazardous Energy: Lock-out and Other Methods, and CSA Z432 – Safeguarding of Machinery.


137-2020 rue André-Labadie
Beloeil (Québec)
J3G 0W6