Confined Space Entry Standard
Scope and Application
This standard contains requirements for practices and procedures to protect employees in general industry from the hazards of entry into permit-required confined spaces. This standard does not apply to agriculture, to construction, or to the shipyard employment.
Definitions
Acceptable entry conditions mean th
e conditions that must exist in a permit space to allow entry, and to ensure that employees involved with a permit required confined space entry can safely enter into and work within the space.
Attendant means an individual stationed outside one or more permit spaces who monitors the authorized entrants, and who performs all attendant’s duties assigned in the employer’s permit space program.
Authorized entrant means an employee who is authorized by the employer to enter a permit space.
Confined space means a space that (1) is large enough and so configured that an employee can bodily enter and perform assigned work, (2) has limited or restricted means for entry or exit, and (3) is not designed for continuous employee occupancy.
Engulfment means the surrounding and effective capture of a person by a liquid or finely divided (flowable) solid substance that can be aspirated to cause death by filling or plugging the respiratory system, or that can exert enough force on the body to cause death by strangulation, constriction, or crushing.
Entry means the action by which a person passes through an opening into a permit-required confined space.
Entry permit means the written or printed document that is provided by
the employer to allow and control entry into a permit space and that contains the information required in the standard.
Entry supervisor means the person responsible for determining if acceptable entry conditions are present at a permit space where entry is planned for authorizing entry and overseeing entry operations, and for terminating entry as required in the standard.
Hazardous atmosphere means an atmosphere that may expose employees to the risk of death, incapacitation, impairment of ability to self-rescue, injury, or acute illness.
Immediately dangerous to life or health (IDLH) means any condition that poses an immediate or delayed threat to life or that would cause irreversible adverse health effects or that would interfere with an individual’s ability to escape unaided from a permit space.
Isolation means the process by which a permit space is removed from service and is completely protected against the release of energy and material into space.
Oxygen-deficient atmosphere means an atmosphere containing less than 19.5% oxygen by volume.
Oxygen-enriched atmosphere means an atmosphere containing more than 23.5% oxygen by volume.
Permit-required confined space means a confined space that has one or more of the following characteristics:
(1) Contains or has a potential to contain a hazardous atmosphere;
(2) Contains a material that has the potential for engulfing an entrant;
(3) Contains an internal configuration such that an entrant could be trapped or asphyxiated by inwardly converging walls or by a floor that slopes downward and tapers to a smaller cross-section; or
(4) Contains any other recognized serious safety or health hazard. Rescue service means the personnel designated to rescue employees from permit spaces.
The employer shall evaluate the workplace to determine if any spaces are permit-required confined spaces. If the workplace contains permit spaces, the employer shall inform exposed employees, by posting danger signs or by any other equally effective means, of the existence and location of and the
danger posed by the permit spaces.
Confined Space Entry Program
If the employer decides that its employees will enter permit spaces, the employer shall develop and implement a written permit space program that complies with this standard. The written program shall be available for inspection by employees and their authorized representatives. Under the confined space entry program, the employer shall Implement the measures necessary to prevent
• Unauthorized entry
• Identify and evaluate the hazards of permit spaces before the employee enters them
• Develop and implement the means, procedures, and practices necessary for safe permit space entry operations Entry Permits
The entry permit that documents compliance with this standard and authorizes entry to a permit space shall include the following:
• Permit space to be entered
• Purpose of the entry
• Date and the authorized duration of the entry permit
• Authorized entrants by name
• Attendant name
• Entry supervisor (by name)
• Measures to isolate the permit space and to eliminate or control permit space hazards before entry
Employees must have the opportunity to observe the monitoring under this standard.
Training
The employer shall provide training so that all employees whose work is regulated by this standard acquire the understanding, the knowledge, and the skills necessary for the safe performance of their duties. Training shall be provided to each affected employee before the employee is first assigned duties under this standard. Whenever there is a change in the assigned duties when the employer determines there is a discrepancy in the program, or when there is a change in permit space operations that present a hazard about which an employee has not previously been trained, additional training is required. The employer shall certify that the training required has been accomplished. The certification shall contain each employee’s name, the signatures or initials of the trainers, and the dates of training. The certification shall be available for inspection by employees and their authorized representatives
Scope and Application
This standard contains requirements for practices and procedures to protect employees in general industry from the hazards of entry into permit-required confined spaces. This standard does not apply to agriculture, to construction, or to the shipyard employment.
Definitions
Acceptable entry conditions mean th
Attendant means an individual stationed outside one or more permit spaces who monitors the authorized entrants, and who performs all attendant’s duties assigned in the employer’s permit space program.
Authorized entrant means an employee who is authorized by the employer to enter a permit space.
Confined space means a space that (1) is large enough and so configured that an employee can bodily enter and perform assigned work, (2) has limited or restricted means for entry or exit, and (3) is not designed for continuous employee occupancy.
Engulfment means the surrounding and effective capture of a person by a liquid or finely divided (flowable) solid substance that can be aspirated to cause death by filling or plugging the respiratory system, or that can exert enough force on the body to cause death by strangulation, constriction, or crushing.
Entry means the action by which a person passes through an opening into a permit-required confined space.
Entry permit means the written or printed document that is provided by
the employer to allow and control entry into a permit space and that contains the information required in the standard.
Entry supervisor means the person responsible for determining if acceptable entry conditions are present at a permit space where entry is planned for authorizing entry and overseeing entry operations, and for terminating entry as required in the standard.
Hazardous atmosphere means an atmosphere that may expose employees to the risk of death, incapacitation, impairment of ability to self-rescue, injury, or acute illness.
Immediately dangerous to life or health (IDLH) means any condition that poses an immediate or delayed threat to life or that would cause irreversible adverse health effects or that would interfere with an individual’s ability to escape unaided from a permit space.
Isolation means the process by which a permit space is removed from service and is completely protected against the release of energy and material into space.
Oxygen-deficient atmosphere means an atmosphere containing less than 19.5% oxygen by volume.
Oxygen-enriched atmosphere means an atmosphere containing more than 23.5% oxygen by volume.
Permit-required confined space means a confined space that has one or more of the following characteristics:
(1) Contains or has a potential to contain a hazardous atmosphere;
(2) Contains a material that has the potential for engulfing an entrant;
(3) Contains an internal configuration such that an entrant could be trapped or asphyxiated by inwardly converging walls or by a floor that slopes downward and tapers to a smaller cross-section; or
(4) Contains any other recognized serious safety or health hazard. Rescue service means the personnel designated to rescue employees from permit spaces.
The employer shall evaluate the workplace to determine if any spaces are permit-required confined spaces. If the workplace contains permit spaces, the employer shall inform exposed employees, by posting danger signs or by any other equally effective means, of the existence and location of and the
danger posed by the permit spaces.
Confined Space Entry Program
If the employer decides that its employees will enter permit spaces, the employer shall develop and implement a written permit space program that complies with this standard. The written program shall be available for inspection by employees and their authorized representatives. Under the confined space entry program, the employer shall Implement the measures necessary to prevent
• Unauthorized entry
• Identify and evaluate the hazards of permit spaces before the employee enters them
• Develop and implement the means, procedures, and practices necessary for safe permit space entry operations Entry Permits
The entry permit that documents compliance with this standard and authorizes entry to a permit space shall include the following:
• Permit space to be entered
• Purpose of the entry
• Date and the authorized duration of the entry permit
• Authorized entrants by name
• Attendant name
• Entry supervisor (by name)
• Measures to isolate the permit space and to eliminate or control permit space hazards before entry
Employees must have the opportunity to observe the monitoring under this standard.
Training
The employer shall provide training so that all employees whose work is regulated by this standard acquire the understanding, the knowledge, and the skills necessary for the safe performance of their duties. Training shall be provided to each affected employee before the employee is first assigned duties under this standard. Whenever there is a change in the assigned duties when the employer determines there is a discrepancy in the program, or when there is a change in permit space operations that present a hazard about which an employee has not previously been trained, additional training is required. The employer shall certify that the training required has been accomplished. The certification shall contain each employee’s name, the signatures or initials of the trainers, and the dates of training. The certification shall be available for inspection by employees and their authorized representatives
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