If a hazardous atmosphere exists in the confined space such as toxic gases, an appropriate air-purifying respirator may be used. However, if the confined space has a lack of oxygen, an air-purifying …

Many workplaces contain areas that are considered "confined spaces" because while they are not necessarily designed for people, they are large enough for workers to enter and perform certain jobs.

Employers and those who manage construction related activities, where confined spaces and PRCS may be found, will find helpful guides to control hazards associated with confined spaces and learn …

Control: means the action taken to reduce the level of any hazard inside a confined space using engineering methods (for example, by ventilation), and then using these methods to maintain the …

Provides an interactive expert help for the Permit-Required Confined Spaces Standard (29 CFR 1910.146). Assists users in identifying confined spaces and deal with permit-required confined spaces.

A confined space has Limited means of entry and/or exit, Is large enough for a worker to enter it, and Is not intended for regular/continuous occupancy. All of the above

At least hourly for permit-required confined spaces. NOTE: A good practice is to re-test the atmosphere after breaks or having been out of the confined space for a period of time.

Sep 30, 2013 · Confined Spaces: Protecting Construction Workers in Confined Spaces - Small Entity Compliance Guide (OSHA 3825 - 2015) (English: PDF )

These spaces can present physical and atmospheric hazards that can be prevented if addressed prior to entering the space to perform work. This page is a starting point for finding information about these …

Permit-required confined space program (permit space program) means the employer's overall program for controlling, and, where appropriate, for protecting employees from, permit space hazards and for …