Entry Permits
Permits are valuable tools for planning, evaluating, and controlling confined space entries.
A permit involves a formal system of procedures and is issued by the
employer before any worker enters the confined space. A competent person must verify that the permit issued complies with the plan before every shift. The duration of an entry permit must not exceed the time required to complete the task. Entry permits should be understood by everyone involved in the job and must be readily available to every person entering the confined space.

At the very least, the entry permit must include:
 the location and description of the confined space,
 a description of the work,
 a description of the hazards and the corresponding controls,
 the time period for which the entry permit applies,
 the name of the attendant,
 a record of each worker who enters and leaves,
 a list of the equipment required for entry and rescue, and verification that the equipment is in good working order,
 the results of the atmospheric testing, and
 additional procedures and control measures if hot work is to be done.

The entry permit may also include:
 a record of the hazard assessment,
 the hazard control plan, or
 the training records.

Unauthorized entry
The constructor must ensure that each entrance to the confined space is
secured against unauthorized entry and/or has adequate barricades or signs warning against unauthorized entry.

Record Keeping
The employers must keep records of every:
 plan,
 assessment,
 coordination document,
 training,
 entry permit,
 rescue equipment inspection, and
 tests.
The records must be kept for at least one year after the project is finished, and they must be available for inspection.