Confined Space Entry ProgramEvaluating the workplace and classifying confined spaces
Each workplace shall be evaluated by a competent person to determine if it contains confined spaces as defined in section II of this policy. Each confined space shall then be classified as either a Permit Required Confined Space as defined in section III, or a Non-Permit Required Confined Space as defined in section IV of this policy.
Superintendents and supervisors of each area, such as, Maintenance, Telecommunications, Water and Wastewater Treatment, General Utilities and other such groups will ensure property and equipment under their responsibility are evaluated and confined spaces are controlled in accordance with this policy.
Any space that meets all the following criteria:
Acceptable entry conditions: 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: An individual stationed outside one or more permit required confined spaces who monitors the authorized entrants and who performs all attendant's duties assigned in the employer's permit space program.
Authorized entrants: An employee who is authorized by the employer to enter a permit space.
Emergency: Any occurrences (including any failure of a hazard control or monitoring equipment) or event internal or external to the permit space that could endanger entrants.
Energy isolating device: A mechanical device that physically prevents the transmission or release of energy, including but not limited to the following:
Entry: The action by which a person passes through an opening into a permit required confined space. Entry is considered to have occurred as soon as any part of the entrants body breaks the plane of an opening into the space.
Entry supervisor: The person (such as the employer, foreman, or crew chief) responsible for determining if acceptable entry conditions are present at the permit space where entry is planned, for authorizing entry and overseeing entry operations, and for terminating entry.
Hazardous atmosphere: An atmosphere that may expose employees to the risk of death, incapacitation, impairment of ability to self-rescue (that is, escape unaided from a permit space), injury, or acute illness from one or more of the following causes:
Immediately dangerous to life or health (IDLH): 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: The process by which a permit space is removed from service and completely protected against the release of energy and material into the space by such means as: removing sections of lines, pipes or duct work; a double block and bleed system; lockout or tagout of all sources of energy; or by disconnecting all mechanical linkage.
Lockout: The placement of a lockout device on an energy isolation device, in accordance with an established procedure, ensuring that the energy isolation device and the equipment being controlled cannot be operated until the lockout device is removed.
Oxygen deficient atmosphere: An atmosphere containing less than 19.5% oxygen by volume.
Oxygen enriched atmosphere: An atmosphere containing more than 23.5% oxygen by volume.
Permit required confined space program: The employer's written procedure for preparing and issuing permits for entry and for returning into a permit required confined space.
Rescue service: The personnel designated to rescue employees from permit spaces.
Retrieval systems: The equipment (including a retrieval line, full body harness, and a lifting device for retrieval) used for non-entry rescue of persons from a permit required space.
Tagout: The placement of a tagout device on an energy isolating device in accordance with an established procedure to indicate that the energy isolating device and the equipment being controlled may not be operated until the tagout device is removed.
Testing: The process by which the hazard that may confront entrants of a permit space are identified and evaluated.
Evaluating hazards for initial classification of confined spaces
When initially classifying confined spaces as permit or non-permit, they must be evaluated for internal and external conditions that have the potential for creating a hazard.
If the space has a potential atmosphere being oxygen enriched or deficient, explosive, or contains carbon monoxide or hydrogen sulfide, a quantitative analysis is required. A Metrosonics 4-gas monitor or equivalent instrument which analyzes and indicates oxygen in percent by volume, lower explosive limit in percent LEL, carbon monoxide and hydrogen sulfide expressed in parts per million (ppm) will be used. After calibration, a probe must be attached to the instrument for internal sampling. A person trained in the use of this instrument shall conduct this initial test while positioned outside the space. Samples shall be taken in all areas employees will be working or may need to access.
Due to size or configuration, some spaces will not allow atmospheric testing of all areas with an instrument probe while stationed outside the space. These situations may require entry for appropriate testing. This shall be accomplished by testing atmospheres as far as possible with an instrument probe. If safe readings are found, entrants may then proceed to areas probe tested. Once entry is gained, testing samples shall be read continuously in all areas employees will be working or may need to access. Testing personnel must carry with them an emergency escape self contained breathing apparatus (SCBA) unit which will provide breathing air for 5 minutes or more. If at any time the testing instrument alarms, entrants must immediately don the escape air pack and exit the space.
Any quantitative readings other than those shown below cause the initial evaluation and classification to cease and not resume until contact is made with the University of Central Florida's Environmental Health & Safety Department. The following are considered normal readings:
In some cases the space may have the potential to contain unknown atmospheric hazards which cannot be quantified or detected by a multi-gas monitor. In these situations appropriate measures shall be taken to ensure no entry is permitted and Environmental Health and Safety shall be contacted to conduct the evaluation.
Non-Permit Required Confined Space
Confined spaces classified as non-permit required do not need written procedures to authorize an employee to enter. No further action is needed unless work to be performed inside would change the classification to a permit required confined space. When there are changes in the physical configuration or nature of the process used within a non-permit required confined space that might increase the hazard to entrants, the space shall be reevaluated and , if necessary, reclassify to a permit required confined space.
Permit Required Confined Space
Any space that meets all the criteria found in section II of this policy and which will require written procedures to authorize an employee to enter because the space or work to be performed inside has one or more of the following characteristics:
Employees exposed to permit required confined space(s) shall be informed of location and danger posed by each space by a sign at each permit required confined space which reads:
Each confined space classified as permit required that will be entered by UCF employees must have written procedures for authorizing and controlling entry by one of the methods provided in this policy. Each written procedure must contain specific procedures and precautions to be taken for entering and working within the space. The written procedures shall conform with OSHA standard 29 CFR 1910.146 and the University of Central Florida policies and procedures.
A copy of the written procedures must be maintained at the place of entry and made readily available to employees affected by such procedures. A copy must also be sent to Environmental Health & Safety.
Entry by written permit method
When entry in a permit required confined space cannot be accomplished by one of the previously described methods, a written permit granting authority to enter must be issued. General Entry Permit (permit A) or Hot Work Permit (permit B) contained in this policy shall be used as the written permit.
Written procedures governing entry by permit shall contain at least the following elements:
2. Isolation procedures (lockout-tagout etc.).
3. Purging, inerting, flushing, or ventilating procedures.
4. methods for providing pedestrian, vehicle, or other barriers to protect entrants from external hazards.
Issuance and control of written permits for entry shall meet the following minimum guidelines:
A space classified as permit required may be temporary declassified as non-permit confined space under the following procedures:
Written procedures must contain precautions to be taken for declassifying, entering, working within and exiting the space. The written procedures must also include a method by which it is verified that all entrants are out of the confined space prior to removing safeguards or returning it to service.
Entry by controlling atmosphere with continuous forced air method OSHA 29 CFR 1910.146(c)(5)
A space classified as permit required in which the only hazard posed is an actual or potential hazardous atmosphere, and the hazard can be controlled by continuous forced air, such space may be entered by written alternate procedures and without permit.
A written record of monitoring and inspection data to support decisions to enter without permits must be maintained and made available upon request by any employee who enters a confined space under this alternate procedure.
Written procedures must contain precautions to be taken for entering and working within the space and, at a minimum, must follow OSHA standards 29 CFR 1910.146(c)(5) protocols.
Before each entry in which continuous forced air is to be used to control an atmospheric hazard, the following must be done:
Notifying contractors or other company's employees of confined spaces
When a contractor or another company is invited to perform services on UCF property which involves a permit required confined space, Environmental Health & Safety or the department in charge of the project shall notify the contractor of:
If UCF employees are to enter simultaneously, UCF's written procedures shall be followed by all forces. If only contractors or other company's forces are entering, the written procedures established by that company will be followed.