Author:
M. Heminuk
Revision #:
3
Approved By:
Ronnie Keeter
Date Revised:
April 2022
SAFETY POLICY & PROCEDURE
Rev. 3 Confined Permit and Non-Permit Required Confined Space Entry 1
Confined Permit and Non-Permit
SPP#
1910.146
Required Confined Space
Quick Reference
1.0 Purpose ............................................................................................................................................ 2
2.0
Scope
and Applicability .................................................................................................................... 2
3.0 Reference ......................................................................................................................................... 3
4.0 Policy ............................................................................................................................................... 3
5.0
General
Responsibilities .................................................................................................................... 3
6.0 Procedure ......................................................................................................................................... 3
6.1 Definitions .............................................................................................................................. 3
6.2 General
Provisions
.................................................................................................................. 5
6.2.1
Training
.................................................................................................................... 5
6.2.2
Confined Spaces ...................................................................................................... 6
6.2.3
Hazards if
Confine Spaces ........................................................................................ 7
6.2.4 Identifying Confined Spaces at Your Facility ......................................................... 8
6.2.5 Evaluating Confined Spaces .................................................................................... 8
6.2.6 Permit Required Confined Space Entry Requirements ........................................... 9
6.2.7 Recordkeeping .......................................................................................................... 12
6.3
Specific
Responsibilities ....................................................................................................... 13
6.3.1 Managers & Unit Heads ........................................................................................ 13
6.3.2 Supervisors ............................................................................................................. 13
6.3.3
Employees
.............................................................................................................. 13
6.3.4
Entrant
.................................................................................................................... 13
6.3.5
Attendant
................................................................................................................. 14
6.3.6
Entry Supervisor
..................................................................................................... 14
6.3.7
Qualified Person
...................................................................................................... 14
6.3.8
Safety and Risk Management
................................................................................... 14
APPENDIX
A:
Certification Training Form
for
Authorized
Employees ..................................................... 15
APPENDIX
B:
Confined Spaces Inventory
............................................................................................... 196
APPENDIX
C:
Atmospheric Testing Procedure
.......................................................................................... 17
APPENDIX
D:
Confined Space Evaluation Form
....................................................................................... 18
APPENDIX
E:
Confined Space Entry Permit
.............................................................................................. 19
APPENDIX F: Confined Space Entry Program Elements ........................................................................ 20
APPENDIX G: Confined Space Entry Team Responsibilities.................................................................. 21
APPENDIX H: Confined Space Decision Tree Flowchart ....................................................................... 23
SAFETY POLICY & PROCEDURE
Rev. 3 Confined Permit and Non-Permit Required Confined Space Entry 2
1.0 Purpose
The purpose of this safety policy and procedure is to protect North Carolina
Department of Transportation (NCDOT) employees who enter confined spaces.
2.0
Scope
and Applicability
A Confine Space by design is large enough and so configured that an employee can bodily enter
and perform assigned work, has limited or restricted means for entry or exit and is not designed
for continuous employee occupancy.
A Permit-Required Confined Space has one or more of the following characteristics: contains or
has a potential to contain a hazardous atmosphere, contains a material that has the potential for
engulfing an entrant, has an internal configuration such that an entrant could be trapped or
asphyxiated by inwardly converging walls or by a floor which slopes downward and tapers to a
smaller cross-section or contains any other recognized serious safety or health hazard. Permit-
Required Confined Spaces are located throughout NCDOT with different types of hazards
associated with them. Permit-Required Confined Spaces can present dangerous hazards to
NCDOT employees who perform work activities in them.
This safety policy and procedure provides guidelines for entry into Permit-Required Confined
Space to protect NCDOT employees who work in them. It includes provisions for training
and discussion on what defines a confined space. This safety policy and procedure presents
details on the hazards of Permit-Required Confined Spaces and on identifying them.
Additionally, it presents discussion on evaluating Permit-Required Confined Spaces and the
requirements for Permit-Required Confined Space entry. This document also provides
recordkeeping requirements.
This safety policy and procedure details the areas of responsibility for managers/unit heads,
supervisors, employees, entrants, attendants, entry supervisors, qualified persons, Safety and Risk
Management, and Central Equipment Unit within NCDOT.
This document applies to any operation that requires NCDOT employees or contractors to enter
or work inside any existing tank, tank car, tower, sewer, manhole, sump, vault, vat, process
vessel, pit, tunnel, or similar confined spaces. This safety policy and procedure applies to but is
not limited to the following NCDOT employees and operations:
Employees who enter weigh station pits.
Employees who enter trenches.
Ferry Maintenance employees who enter areas below the weather deck excluding the
engineering room below deck.
Maintenance and Bridge employees who work in pipes and culverts.
Inspectors and Maintenance employees who work in specified bridge beam areas.
Employees who work on sewage and water treatment facilities located at rest stops or
welcome centers.
Maintenance employees who work in catch basin areas.
Maintenance employees who enter weigh scale pits for operational service.
Traffic Service employees who enter paint tanks.
SAFETY POLICY & PROCEDURE
Rev. 3 Confined Permit and Non-Permit Required Confined Space Entry 3
Any employee who enters boilers.
Employees who use and/or maintain grease pits at equipment shops.
Bridge employees who enter caissons.
3.0 Reference
This safety policy and procedure is established in accordance with Occupational
Safety and Health Standard for General Industry (29 CFR 1910.146) and Occupational Safety
and Health Standards for the Maritime Industry (29 CFR 1915.11-16) and Occupational Safety
and Health Standards for Construction (29CFR 1926.1200-1213.
4.0 Policy
It is the policy of NCDOT to provide a place of employment that is free from recognized hazards
that cause or are likely to cause death or serious physical harm to employees or the public.
Therefore, at each NCDOT facility and/or jobsite, confined spaces will be identified and, as
applicable, permitted and posted with warning signs. When confined space hazards exist that
cannot be eliminated, then engineering practices, administrative practices, safe work practices,
Personal Protective Equipment (PPE), and proper training regarding Permit-Required Confined
Space Entry will be implemented. These measures will be implemented to minimize those
hazards to ensure the safety of employees and the public.
5.0
General
Responsibilities
It is the responsibility of each manager/unit head, supervisor, and employee to ensure
implementation of NCDOT’s safety policy and procedure on Permit-Required Confined Space
Entry It is also the responsibility of each NCDOT employee to report immediately unsafe
conditions to his or her supervisor. Specific responsibilities are found in Section 6.3.
6.0 Procedure
This section provides applicable definitions, establishes general provisions, and identifies
responsibilities required by NCDOT’s safety policy and procedure on Confined Space Entry.
6.1 Definitions
Attendant
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.
SAFETY POLICY & PROCEDURE
Rev. 3 Confined Permit and Non-Permit Required Confined Space Entry 4
Non-Permit Required Confined Space
A confined space by design large enough and so configured that an employee can bodily
enter and perform assigned work, has limited or restricted means for entry or exit (for
example, tanks, vessels, silos, storage bins, hoppers, vaults, and pits are spaces that may
have limited means of entry.), and is not designed for continuous employee occupancy.
Controlling Contractor is the employer that has overall responsibility for
construction at the worksite.
Entrant
An employee who is authorized and trained by the employer to enter a permit required
confined space.
Entry Permit
A written document that is provided by the employer to allow and control entry into a
permit required space.
Entry Supervisor
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.
Hazardous Atmosphere
An atmosphere that may expose employees to the risk of death, incapacitation, and
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:
1. Atmospheric oxygen concentration below 19.5 percent or above 23.5 percent
2. Flammable gas, vapor, or mist in excess of 10 percent of its lower flammable limit
(LFL)
3. Airborne combustible dust at a concentration that meets or exceeds its LFL
4. Atmospheric concentration of any substance for which a dose or a permissible
exposure limit is published in Subpart G, Occupational Health and Environmental
Control, or in Subpart Z, Toxic and Hazardous Substances, of this Part and which
could result in employee exposure in excess of its dose or permissible exposure
limit
5. Any other atmospheric condition that is immediately dangerous to life or health.
Host Employer
The employer that owns or manages the property where the construction work is taking
place.
Hot Work Permits
A permit allowing employees to perform work involving welding, cutting, or any
task that would deplete oxygen, create toxic fumes and vapors, or create the potential for
fire or explosion.
IDLH (Immediately Dangerous to Life or Health)
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.
SAFETY POLICY & PROCEDURE
Rev. 3 Confined Permit and Non-Permit Required Confined Space Entry 5
Lower Explosive Limit (LEL)
The minimum concentration of a combustible/flammable gas or vapor in air which will
ignite if an ignition source is present.
Oxygen Deficient Atmosphere
An atmosphere containing oxygen at a concentration of less than 19.5% by volume as
measured by an oxygen measuring device.
Oxygen Enriched Atmosphere
An atmosphere containing oxygen at a concentration of more than 23.5% by volume as
measured by an oxygen measuring device.
Permit-Required Confined Space
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. Has an internal configuration such that an entrant could be trapped or asphyxiated
by inwardly converging walls or by a floor which slopes downward and tapers to a
smaller cross-section; or
4. Contains any other recognized serious safety or health hazard.
Qualified Person
A person who has been trained and authorized to perform atmospheric testing.
Upper Explosive Limit (UEL)
The maximum concentration of a combustible/flammable gas or vapor in air before its
saturation point which will ignite if an ignition source is present.
6.2 General
Provisions
This section details the provisions of this safety policy and procedure with each provision
discussed in a separate subsection. These provisions are:
Training
Confined Spaces
Hazards of Confined Spaces
Identifying Confined Spaces
Evaluating Confined Spaces
Permit-Required Confined Space Entry Requirements
Recordkeeping
Rescue
Coordination w/ Contractors
6.2.1
Training
Confined space entry training is to provide employees with the necessary
understanding, skills, and knowledge to safely perform their jobs. Components for
confined space entry training include:
Types of confined spaces
Confined space hazards
Atmospheric testing of confined spaces
SAFETY POLICY & PROCEDURE
Rev. 3 Confined Permit and Non-Permit Required Confined Space Entry 6
Cleaning and ventilation
Lockout of confined spaces
Personal Protective Equipment (PPE)
Respirator use and care
Buddy systems and emergency procedures
Communication procedures
Emergency rescue and procedures
Hot work
Initial and refresher training are to be provided to employees. Refresher training must
be conducted whenever an employee’s duties change, whenever hazards in the confined
space change, or whenever an evaluation of the confined space entry program identifies
inadequacies in the employee’s knowledge.
Employees designated to enter confined space work areas will be trained in the
following areas (this includes entrant, attendant, and rescue team):
Emergency entry and exit procedures
Applicable respirators
First Aid and CPR
Lockout barriers at worksites
Safety equipment use
Rescue equipment
Permit system
Work practices
Appendix A presents a training certification form to document the affected employees’
training on confined spaces.
Qualified persons shall be trained in:
Atmospheric testing methods
Meter calibration
Atmospheric behaviors of oxygen, combustible, and toxic gases
Qualified persons shall receive initial and refresher training
6.2.2
Confined Spaces
In NCDOT, a confined space is one by design that:
Is large enough for a person to enter and perform assigned work
Has entry and exit openings that may be limited in size and/or number
Is not intended for continuous human occupancy
Confined spaces in NCDOT can include any existing tank, tank car, tower, sewer,
manhole, sump, vault, vat, grease pit, tunnel, or other similar confined spaces as shown
in Figure 1.
SAFETY POLICY & PROCEDURE
Rev. 3 Confined Permit and Non-Permit Required Confined Space Entry 7
6.2.3 Hazards if
Confine Spaces
Confined spaces present many
hazards to employees due to the
nature of the space’s shape, size,
lack of ventilation, proximity to
toxic gases, and other contributing
substances. Potential confined
space hazards include hazardous
atmospheres, and general safety
hazards.
Hazardous atmospheres expose
employees to risks of death,
incapacitation, injury, or acute illness.
These hazardous atmospheres
include:
Figure 1
A flammable gas, vapor, or mist in excess of ten percent of its lower flammable
limit (LFL)
An airborne combustible dust at a concentration that obscures vision at a
distance of five feet or less
An atmospheric oxygen concentration below 19.5 percent or above 23.5 percent
An atmospheric concentration of any substance for which a permissible
exposure limit is published in Subpart Z of 29 CFR Part 1910 and could result
in employee exposure in excess of its permissible limit(s)
Any atmospheric condition recognized as immediately dangerous to life or
health (IDLH)
General safety hazards include but are not limited to:
Physical hazards include non-chemical, physiologic stressors and include noise,
vibration, slick/wet surfaces, falling objects, temperature extremes, employee
fatigue, and engulfment
Structural hazards include confined space areas that may contain converging or
sloping/tapered walls
Electrical hazards include shock, burns, and/or electrocution due to exposed
or ungrounded electrical energy sources.
Mechanical hazards include any inadvertent mechanical movement of or
within a confined space that threatens the safety of the employee working in
the confined space.
SAFETY POLICY & PROCEDURE
Rev. 3 Confined Permit and Non-Permit Required Confined Space Entry 8
Biological hazards include bacterial action that can consume oxygen to
produce carbon monoxide or emit hydrogen sulfide or methane.
Radiation hazards include those sources that can inadvertently expose
employees to dangerous levels of radiation.
6.2.4 Identifying Confined Spaces at Your Facility
All confined spaces at your worksite/facility must be identified and located so the
permit-required confined space permit program can be established. Visually survey
your worksite/facility to identify confined spaces that are present and that will be
included in the confined space inventory. List all suspected confined spaces.
If a work space meets the confined space criteria, note it for inclusion into your
worksite/facility’s confined space inventory. Appendix B provides a convenient format
for inventorying your confined spaces.
6.2.5 Evaluating Confined Spaces
Once all the confined spaces have been identified, then those confined spaces must be
evaluated to determine the hazards that may be present. Hazardous atmospheres and
general safety hazards must be evaluated for all the confined spaces.
A hazardous atmospheric evaluation must be performed by conducting atmospheric
testing to assess the conditions in the confined space. Appendix C presents
atmospheric testing procedures that should be followed by a qualified person. Results
of the atmospheric testing should be documented for later use.
General safety hazards should be assessed by physical observation. This physical
observation should include a visual assessment of:
The engulfment potential
The internal configuration of the confined space
Other safety hazards such as exposed live electrical components , mechanical
moving parts, pressurized lines. thermal, etc.)
Additionally, assessment should be based on knowing the existing conditions and use
of the confined space along with the actual and potential hazards posed by materials
and substances in the confined space. Appendix D presents a Confined Space
Evaluation Form.
If any of these hazards are present, then the confined space is a permit- required
confined space. If none of these hazards is present, then it is not a permit-required
confined space.
If a change in use or configuration of a non-permit-required confined space increases
hazards to entrant, then the space must be reevaluated for possible reclassification to a
permit-required confined space.
SAFETY POLICY & PROCEDURE
Rev. 3 Confined Permit and Non-Permit Required Confined Space Entry 9
A permit-required confined space may be reclassified to a non-permit- required
confined space if:
The permit-required confined space poses no atmospheric hazards and all non-
atmospheric hazards are eliminated without entry
Entry is necessary to eliminate hazards and such entry is performed in
accordance with the confined space entry program, and testing and inspection
during entry indicate that hazards have been eliminated
The basis for determining that all hazards are eliminated is documented and
certified
Reclassification is effective as long as the hazards remain eliminated.
6.2.6 Permit Required Confined Space Entry Requirements
Once all permit-required confined spaces have been identified, no employee can enter
that space until several requirements are met. These requirements include:
Establishing a permit system
Conducting pre-entry atmospheric testing
Isolating energy sources (lockout/tagout)
Ventilating and cleaning the confined space
Posting permit-required confined spaces with warning signs
Having appropriate PPE
Having appropriate tools in place
Having attendants in place
Having rescue teams in place
Having provisions for contractor compliance
with these requirements
The permit system for each worksite/facility shall
include a listing of all permit-required confined
spaces, a warning sign/label at each permit-required
confined space, and permit issuance by a qualified
supervisor or safety professional.
Once all permit-required confined spaces are
identified, they will be marked with a sign (examples
shown in Figure 2) advising personnel and the
general public as to the dangers involved. Where
practical, all permit-required confined spaces will be
locked or blocked to prevent entry
A qualified supervisor must authorize entry, prepare
and sign written permits, order corrective measures if
necessary, and cancel permits when work is
completed.
Figure 2
SAFETY POLICY & PROCEDURE
Rev. 3 Confined Permit and Non-Permit Required Confined Space Entry 10
The entry permit is completed and posted in a conspicuous location near the
entrance.
Permits must be available to all permit space entrants at the time of entry and should
extend only for the duration of the task. They must be retained for a year to facilitate
review of the confined space program.
Appendix E presents a Confined Space Entry Permit. This permit must be completed
prior to a permit-required confined space entrance. Appendix F presents a Confined
Space Entry Program Element Contact List. These forms shall be maintained at each
facility or operation by the individual charged with administering the Confined Space
Permit Program.
If welding, cutting, burning, riveting, heating, or any other tasks where a source of
ignition is present are to be performed in the confined space (permit-required or
non-permit-required), a hot work permit must also be obtained. See Welding, SPP #
1910.252 for additional information.
Pre-entry atmospheric testing for the confined space shall be performed prior to
employee entrance. See Appendix C for atmospheric testing procedures.
Energy sources will be completely isolated by
physical disconnection, double blocking, bleeding,
or by lockout/tagout procedures. Figure 3 presents
some typical lock/tagout devices. Also, see SPP#
1910.147,
Lockout/Tagout, for additional details.
Figure 3
Ventilation and cleaning shall be performed
to empty, flush, or purge spaces from the
outside if feasible. Figure 4 presents a typical
ventilation configuration to empty, flush, or
purge a confined space.
Figure 4
SAFETY POLICY & PROCEDURE
Rev. 3 Confined Permit and Non-Permit Required Confined Space Entry 11
During pre-entry ventilation, the blowing duct outlet should be positioned for uniform
dilution and elimination of any hazardous atmospheres pockets as shown in Figure 5.
Figure 5
When a hazardous atmosphere is detected, ventilation will continue until:
The space has no harmful concentration of toxic gases or vapors and acceptable
oxygen concentrations
The space shall be tested 3 times until safe levels are maintained.
Upon entry, the atmosphere will be continually monitored by the entrant to
ensure safe levels are maintained. The gas monitor will have audible alarms to
signal when unsafe conditions are detected signaling that space should be
immediately evacuated.
The appropriate PPE should be worn based on the hazard(s) and include:
Eye and face protection
Head protection
Foot and leg protection
Body protection
Hearing protection
Respiratory protection
Hand and arm protection
Harness, safety belts, and lifelines
See SPP# 1910.132, Personal Protective Equipment, for details on matching
PPE to the hazard.
Appropriate equipment and tools must be in place and in good condition. See SPP#
1910.241, Hand and Portable Power Tools, for additional details.
SAFETY POLICY & PROCEDURE
Rev. 3 Confined Permit and Non-Permit Required Confined Space Entry 12
The attendant shall be stationed immediately outside permit-required confined spaces
and shall:
Be trained in non-entry rescue
Not enter the permit-required confined space
Be within sight or call of the entrant
Have means to summon assistance
Have tripod set-up w/ lifeline attached to entrant for non-entry rescue
The attendant shall be physically capable of assisting any employee inside the
confined space in the event of an emergency. This individual will be responsible for
alerting others that a rescue is in progress and for taking appropriate measures to ensure
the safety of all co-workers in the area. No employee is to enter a confined space if
another employee goes down! The attendant shall always seek assistance.
Appropriate communications shall be established such as radios or walkie- talkies if the
employee gets out of sight or earshot.
Rescue teams must be available and on-call for permit-required confined space entry.
The Rescue team must be able to respond in a timely matter, be properly trained, and
equipped with rescue equipment including SCBAs.
Contractors who perform permit-required confined space entry must comply with all
the OSHA requirements.
If NCDOT owns the property on which the construction activity occurs and has
contracted with an entity for the general management of that property, and has
transferred to that entity the information specified in § 1926.1203(h)(1), OSHA
will treat the contracted management entity as the host employer for as long as
that entity manages the property. Otherwise, OSHA will treat NCDOT as the
host employer. In no case will there be more than one host employer.
Permit space entry communication and coordination with Contractors before
entry operations begin, NCDOT must provide the following information, if it
has it, to the controlling contractor:
1) The location of each known Permit-Required Confined Space;
2) The hazards or potential hazards in each confined space or the reason it
is a permit space; and
3) Any precautions that the host employer or any previous controlling
contractor or entry employer implemented for the protection of
employees in the Permit-Required Confined Space.
6.2.7 Recordkeeping
Recordkeeping requirements include:
Retaining each cancelled permit for at least one year to facilitate review
of Permit-Required Confined Spaces program.
Noting problems encountered during entry on permit to facilitate
revisions to program.
Certification of training with name, identity of trainers and training dates.
SAFETY POLICY & PROCEDURE
Rev. 3 Confined Permit and Non-Permit Required Confined Space Entry 13
Reclassification from permit to non-permit space certification with date,
location, and signature of person making determination.
6.3
Specific
Responsibilities
6.3.1 Managers & Unit Heads
Managers/Unit Heads are responsible for ensuring that adequate funds are available and
budgeted for the purchase of confined space equipment in their areas. They will also be
responsible for identifying the employees affected by this safety policy and procedure
Managers/Unit Heads shall be responsible for having Safety Engineers or Safety
Officers identifying confined spaces at their worksite/facility. Additionally, they will be
responsible for ensuring all confined spaces are evaluated to determine if a permit is
required prior to entry.
Managers/Unit Heads shall also designate entry supervisors and qualified persons.
Managers/Unit Heads will obtain and coordinate the required training for affected
employees. Managers/Unit Heads will also ensure compliance with this safety policy
and procedure through their auditing process.
6.3.2 Supervisors
Supervisors will not allow any employee who has not received the required training to
perform any of the tasks or activities associated with this safety policy and procedure.
Supervisors will be responsible for communicating appropriate needs to managers/unit
heads and/or supervisors.
Supervisors will be responsible for knowing where confined and permit- required
confined spaces are located at their worksite/facility. They will also be responsible for
ensuring permit-required confined spaces are posted with warning signs.
Supervisors will ensure employees are provided with PPE as necessary for their job.
Supervisors are responsible for ensuring that only employees trained and qualified will
operate material handling equipment
6.3.3
Employees
Employees shall comply with all applicable guidelines contained in this safety policy
and procedure.
It is the responsibility of the employee to follow all instructions pertaining to confined
spaces. Employees are never to enter confined spaces unless authorized by training and
job duties.
6.3.4
Entrant
The attendant is responsible for maintaining communication with the entrant at all
times. Appendix G presents additional details on the attendant’s responsibilities.
SAFETY POLICY & PROCEDURE
Rev. 3 Confined Permit and Non-Permit Required Confined Space Entry 14
6.3.5 Attendant
Safety and Risk Management will provide prompt assistance to managers/unit heads,
supervisors, or others as necessary on any matter concerning this safety policy and
procedure. Safety and Risk Management will assist in developing or securing required
training. Safety and Risk Management will work with Purchasing and Central
Equipment Unit to ensure that all newly purchased Locks and Tags comply with this
safety policy and procedure.
Safety and Risk Management shall be responsible for monitoring the Lockout/Tagout
Program and any changes in the machinery and equipment that may require
modification of the Program.
Additionally, Safety Engineers will provide consultative and audit assistance to ensure
effective implementation of this safety policy and procedure.
6.3.6
Entry Supervisor
Entry supervisor is responsible for ensuring that only employees who are trained are
allowed to enter confined spaces. The entry supervisor is responsible for ensuring
proper permits and safety procedures are followed closely at the jobsite.
The entry supervisor must also be familiar with all hazards associated with the entry
operation. He is responsible for all safety precautions, rescue procedures, and safety
equipment needed for the operation. Appendix G presents additional details on the
entry supervisor’s responsibilities.
6.3.7
Qualified Person
Qualified person is responsible for checking the atmosphere of a confined space and
correctly reading and using the gas detection instruments. Qualified Person is also
responsible for documenting all confined space measurements
6.3.8
Safety and Risk Management
Safety and Risk Management will provide prompt assistance to managers/unit heads,
supervisors, or others as applicable on any matter concerning this safety policy and
procedure. Safety and Risk Management will assist in developing or securing the
required training. Safety and Risk Management will provide guidelines for using air
monitoring and gas detection equipment.
Safety and Risk Management will provide guidance to the qualified person on
atmospheric testing. As applicable, the air monitoring data will be evaluated for
completeness, accuracy, and precision.
Additionally, the Safety & Risk Management and the Safety Engineer will provide
consultative and audit assistance to ensure effective implementation of this safety policy
and procedure.
SAFETY POLICY & PROCEDURE
Rev. 3 Confined Permit and Non-Permit Required Confined Space Entry 15
A
PPENDIX
A:
Certification Training Form
for
Authorized
Employees
Location:
Instructor:
Employee Name:
Employee #
Has the OSHA required training been completed in the following categories?
Topic Completion Instructor’s Employee’s
Date Initial Initial
Types of Confined Spaces
Confined Space Hazards
Atmospheric Testing of Confined Spaces
Evaluating Confined Spaces
Cleaning and Ventilation
Lockout of Confined Spaces
PPE
Respirator Use and Care
Buddy Systems and Emergency Procedures
Communication Procedures
Emergency Rescue
Employees designated to
enter confined spaces
(includes entrant, attendant,
and rescue team) shall also
be trained in the following
topics
Completion Instructor’s Employee’s
Date Signature Initial
Emergency Entry and Exit Procedures
Applicable Respirators
First Aid and CPR
Lockout Barriers at Worksites
Safety Equipment at Worksites
Rescue Equipment
Permit System
Work Practices
Attach Course Roster to this Form
(See SPP# 1926.21 for Course Roster Form)
SAFETY POLICY & PROCEDURE
Rev. 3 Confined Permit and Non-Permit Required Confined Space Entry 16
APPENDIX
B:
Confined Spaces
Inventory
Facility:
Location:
Inventory Date:
All permit-required confined spaces shall be posted with signs stating “Confine Space-Do Not Enter” or “Unauthorized Entry Prohibited
Confine Space
Purpose
Hazards
Work Done
Permit Required
This inventory must be kept up to date. All operational changes should always be evaluated for its impact on this
facility’s confined spaces.
SAFETY POLICY & PROCEDURE
Rev. 3 Confined Permit and Non-Permit Required Confined Space Entry 17
A
PPENDIX
C:
Atmospheric Testing
Procedure
A qualified person shall test spaces a minimum of 3 times at all stratified levels prior to permit
required confined space entry. Figure 5 illustrates the common gases found
at each of these (3) stratified levels. Using
a direct reading instrument with remote
sampling capacity, the qualified person shall
test the atmosphere for in the following
order:
1. Oxygen level (19.5 percent
minimum/maximum 23.5 percent)
2. Potential flammable hazard, not to
exceed (10 percent LEL Max.) or
Lower Flammable Limit (LFL)
3. Toxic materials which potentially could
be present: Carbon Monoxide 35 ppm
Max., Hydrogen Sulfide 10ppm Max. &
other gases must be less
than the known
TLV for that gas.
Figure 5
The qualified person shall record all atmospheric test results on the permit prior to entry. A
qualified person shall perform atmospheric testing during occupancy; if the entrant wears the
four-gas monitor with audible alarms for continuous monitoring, this will fulfill the requirement
for periodic testing and will not need
Each testing instrument shall be:
Calibrated per manufacturer’s instructions (instruments out of calibration or that fail
field checks cannot be used until calibrated).
At least annually calibrated by the manufacturer.
Field checked immediately prior to use. This field check shall include checking with a
test gas at least monthly.
SAFETY POLICY & PROCEDURE
Rev. 3 Confined Permit and Non-Permit Required Confined Space Entry 18
A
PPENDIX
D:
Confined Space Evaluation Form
Confined Space Evaluation
Confined Space Identification number:
Confined Space Description:
Location of space:
Is a Permit Required?
List the typical tasks performed:
Potential Hazards:
Required Work Procedures
Flammable or Explosive atmosphere
Atmospheric Testing Prior to Entry
(see acceptable limits below)
Oxygen deficient atmosphere
Continuous Atmospheric Testing
(see acceptable limits below)
Toxic atmosphere / Specify:
Standby attendant required
Eye contact
Lock/Tag equipment*
Skin contact
Blank or Disconnect lines*
Electrocution
Double block and bleed*
Moving mechanical equipment
Ventilation/Purge (continuous forced air)
Slip or fall
Inert/Purge space prior to Ventilation
Heat stress or thermal contact
Decon/Clean space prior to work
Engulfment
Barricade area
Entrapment
Communications equipment
Drowning
Attach MSDS to permit
Other / Specify:
* Attach Job specific hazardous work permit
Other / Specify:
Atmospheric testing acceptable limits: Oxygen 19.5% - 23.5%, Combustibles <10% LFL / LEL, Toxics See MSDS
Elimination of Hazards §(c)(7) applicable? (note: if §(c)(7) used, this hazard assessment may not apply)
Alternate Procedures §(c)(5) applicable? (note: if §(c)(5) used, this hazard assessment may not apply)
Required Equipment for entry
Survey atmosphere monitor
Tripod with hoist (gantry hoist)
Personal monitor, continuous
Harness with retrieval line
Respirator:
Ladder
Gloves:
Spark/Explosion proof or
Intrinsically safe equipment required
Boots:
GFCI Protected equipment
Eye/Face protection
Additional illumination
Chemical protective clothing (CPC):
Personal fall arrest system (PFAS)
Hearing protection
Fire extinguisher
Other equipment / Specify:
Emergency Plan
Non-entry retrieval rescue attempted after notification
Non-entry notification rescue only
Rescue team must be on On Call Standby:
Initial assessment reviewed by: Date:
Annual review by: Date:
Annual review by: Date:
SAFETY POLICY & PROCEDURE
Rev. 3 Confined Permit and Non-Permit Required Confined Space Entry 19
A
PPENDIX
E:
Confined Space Entry Permit
(Valid for one 8-hour shift only)
All copies of permit will remain at jobsite until job is completed
Entry Supervisor Approval Signature:
Location and Description of Confined Space:
Date:
Scheduled Work to be Done:
Time Started:
Division / Unit:
Time Completed:
Persons Authorized to Enter:
Continuous Monitoring By
Entrant w/ 4 Gas Monitor
Yes
No
Entry Supervisor:
Attendant:
Check Yes or No for Each Potential Hazard Present
Potential Physical Hazards Present
Yes
No
Potential Hazard Atmosphere Present
Yes
No
Engulfment
Low Oxygen (<19.5%)
Moving Machinery
High Oxygen Enriched (>23.5%)
Hazardous Materials
Flammable (>10% LEL)
Converging Walls
Carbon Monoxide (>35 ppm)
Exposed Electricity
Sulfur Dioxide (>10 ppm)
Slips/Falls
Other (list):
Other (list):
Check Yes / No or Enter N/A for Each Special Requirement
SPECIAL REQUIREMENTS
Yes
No
Yes
No
Lockout/Tagout - Deenergize
Tripod for Non-entry Rescue
Lines Broken - Capped or Blanked
Body Harness
Ventilation
Life Line
Purge - Flush and Vent
Fire Extinguisher
Secure Area
Alternate Procedure
Hot Work Permit
Respirator
Communication Equipment
Rescue Procedure
Record Gas Monitor Readings & Enter Time for Initial Check. If the entrant is wearing a four gas meter w/
audible alarms, periodic checks do not have to be entered. If continuous monitoring is not feasible, Periodic
Checks must be completed w/ readings and time documented.
Atmospheric Checks
Permissible
Entry Level
Initial Check
(Enter Time)
Periodic Checks (Enter Time)
% Oxygen
19.5% to 23.5%
%of Lower Explosive Limit
Less than 10%
Carbon Monoxide
35 ppm
Hydrogen Sulfide
10 ppm
Other
Continuous Monitoring shall be performed during the job unless not feasible.
State Reason for not feasible:
Name of Qualified Person - Gas Tester(s):
Monitor Name & Model
S/N
Date Calibrated
Never Enter a Confined Space to Attempt Rescue; Tripod for Non-Entry Rescue Must Be Set-up Prior to Entry w/
Entrant Wearing Body Harness &Lifeline Attached to Tripod.
Arrangements Must Be Made for Nearest Entry Rescue Team to be On Call Stand-By:
List:
Rescue team must be On-Call Standby. If not available reschedule confined space entry.
SAFETY POLICY & PROCEDURE
Rev. 3 Confined Permit and Non-Permit Required Confined Space Entry 20
APPENDIX F: Confined Space Entry Program Elements
Facility:
Program Element
Contact Person
Hazard Identification
Hazard Control
Written Permit System
Posting Confined Spaces
Confined Space Training
Special Safety Equipment
(i.e. Four Gas Direct Reading
Monitor w/ Audible Alarms &
Remote Sampling Capabilities,
Tripod, Life Line)
Written Rescue Plan & Procedures
External Hazard Protection
Communication Equipment
Contractor Notification
Notes:
SAFETY POLICY & PROCEDURE
Rev. 3 Confined Permit and Non-Permit Required Confined Space Entry 21
APPENDIX G: Confined Space Entry Team Responsibilities
A permit-required confined space team performs four functions:
The attendant (observer) who remains outside while the work is being done
The entry supervisor who authorizes permits
The rescue team who performs rescue
The entrant:
Does the assigned task
Reviews the permit before entry
Wears appropriate personal protective clothing, as required
Uses appropriate PPE, as required
Uses and attends to area and personal monitoring equipment
Pays attention to own physical reactions that could signal an unsafe condition
Maintains contact with the attendant and responds to evacuation orders
If the entrant senses any reaction to the environment, he or she should signal the attendant
for help, if necessary, and leave the confined space immediately
The attendant:
Reviews the permit before entry
Keeps track of who is in the space at all times
Keeps unauthorized people out of the area
Maintains continuous communication, visual or voice, with the entrant during the entry
Makes sure the ventilation equipment, if used, is working
Monitors the atmospheric testing equipment
Attends to the lifeline, if worn by the entrant
Attends to the airline, if used, to prevent tangles and kinks
Remains alert for early symptoms of danger within the space
Watches for hazards outside and inside the space
Maintains clear access to and from the space
Notifies the entrant and orders evacuation if conditions warrant or if the permit limits expire
Is prepared to call for emergency help, if needed
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Rev. 3 Confined Permit and Non-Permit Required Confined Space Entry 22
APPENDIX G: Confined Space Entry Team Responsibilities (Continued) 2
The Entry Supervisor (person authorizing permits) :
Plans each entry. Planning means to:
Describe the work to be done
Identify the workers involved
Evaluate the hazards of the space
Perform (or arrange for) atmospheric testing and monitoring
Develop rescue plans
Ensures that the permit is complete, dated, and signed
Determines the need for certain equipment
Ensures atmospheric testing
Ensures that all necessary procedures, and equipment for safe entry are in effect
Determines, at “appropriate” intervals, that operations remain acceptable
Cancels the permit and terminates the work if the conditions are not acceptable
Trains (or provides training for) all workers on the Confined Space Entry Team
Keeps records on training, safety drills, test results, equipment inspections, and equipment
maintenance.
Cancels the permit and secures the space when the work is done
Determines if a written rescue plan is necessary for a particular confined space entry
Verifies that emergency help is available and that the method of summoning help is operable
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Rev. 3 Confined Permit and Non-Permit Required Confined Space Entry 23
APPENDIX H: Confined Space Decision Tree Flowchart
Does the workplace contain Confine Spaces as defined by 1910.146(b)?
Does the workplace contain Permit Required Confine Spaces as defined by 1910.146(b)?
Yes
Inform employees as required by 1910.146 (c)(2).
Will permit spaces be entered?
Yes
Consult other
Applicable OSHA
Standards
Stop
Prevent employee entry as required by
1910.146(c)(3). Do task from outside of space.
Task will be done by contractor s employees. Inform
contractor as required by 1910.146(c )(8)(3)(i), (ii) and (iii).
Contractor obtains information required by 1910.146(c
(9)(i), (ii) and(iii) from host.
No
Will contractors enter?
Both contractors and host employees will enter the space?
Coordinate entry operations as required by
1910.146(c)(8)(iv) and (d)(11). Prevent unauthorized entry.
Prevent unauthorized entry.
Stop
Will host employees enter
to perform entry tasks?
Does space have know or potential hazards?
Not a permit-required confine space. 1910.146
does not apply. Consult other OSHA standards.
Can hazards be eliminated?
Employer may choose to reclassify space to non-permit
required confined space using 1910.146(c)(7).
Can the space be maintained in a condition safe to
enter by continuous forced air ventilation only?
Space may be entered under 1910.146 (c)(5).
Stop
Prepare for entry via permit procedures.
Verify acceptable entry conditions (Test results recorded, space isolated if needed,
rescuers/means to summon available, entrants properly equipped, etc.
Permit not valid until conditions
meet permit specifications.
Stop
Permit issued by authorizing signature. Acceptable
entry conditions maintained throughout entry.
Entry task completed. Permit returned and canceled.
Audit permit program and permit based on evaluation of
entry by entrants, attendees, testers and preparers, etc.
Emergency exists (prohibited condition. Entrants
evacuated entry aborts. (Call rescuers if needed). Permit is
void. Reevaluate program to correct/prevent prohibited
condition. Occurrence of emergency (usually) is proof of
deficient program. No re-entry until program (and permit)
is emended. (May require new program).
No
No
Yes
Yes
Yes
No
No
No
Yes
No
Yes
Yes
Yes
No
No
Yes