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Confined Spaces Definition They are not necessarily designed for people, they are large
enough for employee to enter and perform assigned work. Also, is limited or restricted of entry
or exit and is not designed for continuous occupancy by the employee
By definition, a permit-required confined space has one or more of these characteristics 1.
Contains or has the potential to contain a hazardous atmosphere;
2. Contains a material with the potential to engulf someone who enters the space;
3. Has an internal configuration that might cause an entrant to be trapped or asphyxiated by
inwardly converging walls or by a floor that slopes downward and tapers to a smaller cross
section; and/or
4. Contains any other recognized serious safety or health hazard
General Requirements For Permit Spaces 1. Employers in general industry must evaluate
their workplaces to determine if spaces are permit spaces.
2. If a workplace contains permit spaces, the employer must inform exposed employees of their
existence, location and the hazards they pose. This can be done by posting danger signs such as
"DANGER -- PERMIT-REQUIRED CONFINED SPACE -- AUTHORIZED ENTRANTS
ONLY" or using an equally effective means.
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3. If employees are not to enter and work in permit spaces, employers must take effective
measures to prevent them from entering these spaces. If employees are expected to enter permit
spaces, the employer must develop a written permit space program and make it available to
employees or their representatives
OSHA standard requires the employer's Written Program to: 1. Identify and evaluate
permit space hazards before allowing employee entry.
2. Test atmospheric conditions in the permit space before entry operations and monitor the space
during entry.
3. Perform appropriate testing for the following atmospheric hazards in this sequence: oxygen,
combustible gases or vapors, and toxic gases or vapors.
4. Implement necessary measures to prevent unauthorized entry.
5. Establish and implement the means, procedures and practices.
6. Identify employee job duties.
7. Provide, maintain and require the use of PPE, at no cost to the employee.
8. Ensure that at least one attendant is stationed outside the permit space for the duration of entry
operations.
9. Coordinate entry operations when employees of more than one employer are working in the
permit space.