Confined Spaces
Chapter 296-809, WAC |
Effective
Date: 05/01/04 |
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Your Responsibility:
To establish procedures for the safe permit-required
entry of
confined spaces
You must

WAC
296-809-50002
Implement procedures for entry
permits
You must
• Identify and evaluate, before
employees enter, potential hazards from:
- The permit-required
confined space
and
- The work to be performed.
• Complete an entry permit before
entry is authorized, documenting that you have completed the means,
procedures and practices necessary for safe entry and work.
• Make sure that entrants or their representatives have
an opportunity to observe any monitoring or testing, or any actions
to eliminate or control hazards, performed to complete the permit.
• Identify the entry supervisor.
• Make sure the entry supervisor signs the entry permit,
authorizing entry, before the space is entered.
• Make the completed permit available to entrants or their
authorized representatives at the time of entry.
- Do this by either posting the completed
permit at the entry location, or by any other equally effective
means.
• Make sure the duration of the
permit doesn't exceed the time required to complete the assigned
task or job identified on the permit.
• Note any problems encountered during an entry operation
on the permit. Use the information to make appropriate revisions
to your program, entry operations, means, systems, procedures
and practices
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Helpful
Tool:
Sample Confined Space Entry
Permit
You can find sample fill-in-the-blank entry permits in the
Resources section of this rule. |
WAC
296-809-50004
Use an entry permit that contains all
required information
You must
• Make sure your entry permit identifies
all of the following that apply to your entry
operation:
- The space to be entered
- Purpose of the entry
- Date and the authorized duration of the entry
permit
- Hazards of the space to be entered
- Acceptable entry conditions
- Results of initial and periodic tests performed
to evaluate and identify the hazards and conditions of the space,
accompanied by the names or initials of the testers and by an
indication of when the tests were performed
- Appropriate measures used before entry to
isolate the space, and eliminate or control hazards.
• Examples of appropriate measures
include the lockout or tagging of equipment and procedures
for purging, inerting, ventilating, and flushing permit-required
confined spaces.
- Names of entrants and current attendants:
• Other means include the use of rosters
or tracking systems as long as the attendant can determine
quickly and accurately, for the duration of the permit, which
entrants are inside the space.
- The current entry supervisor
- A space for the signature or initials of
the original supervisor authorizing entry
- Communication procedures for entrants and
attendants to maintain contact during the entry
- Equipment provided for safe entry, such as:
• Personal protective equipment (PPE)
• Testing equipment
• Communications equipment
• Alarm systems
• Rescue equipment
- Rescue and emergency services available,
and how to contact them. Include equipment to use, and names
and contact information
- Other information needed for safety in the
particular confined space
- Additional permits issued for work in the
space, such as for hot work.
WAC
296-809-50006
Keep and review your entry permits
You must
• Keep entry permits for at least one
year
• Keep entry permits or other atmospheric monitoring records
that show the actual atmosphere an employee entered or worked
in, as employee exposure records
• Review your permit-required confined space entry program
as follows:
- Conduct a review when you have any reason
to believe your entry program may not protect employees, and
revise your program before allowing subsequent entries.
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Note:
Examples of circumstances requiring the review of your
program include the following:
- There is unauthorized entry of a permit space
- A permit space hazard not covered by the permit is found
- A condition prohibited by the permit occurs
- An injury or near-miss occurs during entry
- There is a change in the use or configuration of a permit
space
- An employee complains about the effectiveness of the
program. |
You must
• Review canceled entry permits within
one year following each entry to evaluate:
- Your permit-required confined space program.
- The protection provided to employees entering
permit-required confined spaces.
• Update your written permit-required confined
space entry program as necessary
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Note:
Employers may perform a single annual
review covering all entries performed during a 12-month
period. If no entry is performed during a 12-month period,
no review is necessary. |
WAC
296-809-50008
Prevent unauthorized entry
You must
• Implement measures necessary to prevent
unauthorized entry into permit-required confined spaces, when
conducting authorized entry.
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Note:
- When removing entrance covers to open
the confined space, protect entrants and those outside
the confined space from hazards.
- Examples of measures to prevent unauthorized
entry are signs, barricades, warning tape, and an attendant. |
WAC
296-809-50010
Provide, maintain, and use proper equipment
You must
• Provide the equipment in Table 2, when
needed and at no cost to employees.
• Make sure that employees use provided
equipment properly.
• Maintain the provided equipment.
Table 2
Equipment Provided to Employees at No Cost
|
| Type
of equipment |
For |
| Testing and monitoring equipment |
Evaluating permit-required confined space conditions |
| Ventilating equipment |
Obtaining and maintaining acceptable entry conditions |
| Communication equipment |
Effective communication between the attendant and the entrants
and to initiate rescue when required |
| Personal protective equipment (PPE) |
Protecting employees from hazards of the space or the work
performed |
| Lighting equipment |
Employees to see well enough to work safely and to exit
the space quickly in an emergency |
| Barriers or shields, such as pedestrian, vehicle or other
barriers |
Protecting employees from hazards outside of the space |
| Ladders |
Safe entry and exit by entrants |
Rescue and emergency equipment, except for equipment
provided by the rescue service provider |
Safe and effective rescue |
| Any other equipment |
Safe entry into and rescue from permit-required confined
spaces |
WAC
296-809-50012
Evaluate and control hazards for safe
entry
You must
• Evaluate and control hazards for safe
entry into permit-required confined spaces by doing all the following:
- Test for atmospheric hazards, in this order:
• Oxygen
• Combustible gases and vapors
• Toxic gases and vapors
- Provide each entrant or their authorized
representative an opportunity to observe any of the following:
• Pre-entry testing
• Subsequent testing
• Monitoring of permit-required
spaces.
- Reevaluate the permit-required space in
the presence of any entrant, or their authorized representative,
who requests this to be done because they have reason to believe
that the evaluation of that space may not have been adequate.
- Upon request, immediately provide each entrant
or their authorized representative, with the results of any
testing required by this rule.
- Continuously monitor conditions in areas
where entrants are working, when isolation of the space isn't
feasible.
• Examples
would be a large space or space that is part of a continuous
system, such as a sewer.
- Evaluate space conditions during entry as
follows:
| Table 3
Evaluating Space Conditions |
| You must |
In order to |
| Test conditions before entry |
Determine that acceptable entry conditions exist before
entry is authorized by the entry supervisor |
| Test or evaluate space conditions during entry |
Determine that acceptable entry conditions are being maintained
during entry operations |
| Evaluate entry operations |
Make sure entrants of more than one employer working at
the same time in or around a permit-required confined space,
don't endanger each other |
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Helpful
Tool:
Sewer System Entry
You can find additional information about sewer entry in
the Resources section of this rule. |
WAC
296-809-50014
Make sure you have adequate rescue and
emergency services available
IMPORTANT:
This section applies to both:
- Employers whose employees use permit entry
procedures
and
- Employers who provide rescue services.
You must
(1) Make sure you have
adequate rescue and emergency services available during your permit-required
confined space entry operations.
• Evaluate and select rescue teams or
services who can:
- Respond to a rescue call in a timely manner.
Timeliness is based on the identified hazards. Rescuers must
have the capability to reach potential victims within an appropriate
time frame based on the identified permit space hazards.
- Proficiently rescue employees from a permit-required
confined space in your workplace. Rescuers must have the appropriate
equipment for the type of rescue.
- Make sure that at least one member of the
rescue team or service holds a current certification in first
aid and cardiopulmonary resuscitation (CPR).
• Inform each
rescue team or service about the hazards they may confront when
called to perform rescue.
• Provide the
rescue team or service with access to all permit spaces from
which rescue may be necessary.
- This will allow them to develop appropriate
rescue plans and to practice rescue operations.
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Note:
What will be considered timely will
vary according to the specific hazards involved in each
entry. For example, chapter 296-842
WAC, Respirators, requires that employers provide
a standby person or persons capable of immediate action
to rescue employee(s) for work areas considered to contain
an IDLH atmosphere. |
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Helpful
Tool:
Evaluating Rescue Teams or
Services
You can find information about
evaluating rescue services in the Resources section of
this rule. |
(2) Provide
employees, assigned to provide permit-required confined space
rescue and emergency services, with:
• Personal protective equipment (PPE)
needed for safe entry
• Other equipment required to conduct
rescues safely
• Training so they are:
- Proficient in the use of the PPE and other
equipment.
- Proficient as an entrant of permit-required
confined spaces.
- Able to safely perform assigned rescue
and emergency duties.
- Knowledgeable in basic first aid and cardiopulmonary
resuscitation (CPR).
• Practice sessions for permit-required
confined space rescues at least once every
12 months where dummies, manikins, or actual persons are removed
from either:
- The actual permit spaces
or
- Representative permit spaces that simulate
the opening size, configuration, and accessibility, of permit
spaces where rescue will be performed.
(3) Establish procedures for:
• Contacting rescue and emergency services.
• Rescuing entrants from permit-required
confined spaces.
• Providing necessary emergency services
to rescued entrants.
• Preventing unauthorized persons from
attempting a rescue.
WAC
296-809-50016
Use non-entry rescue systems or methods
whenever possible
You must
• Use non-entry retrieval systems or methods
to rescue entrants in a permit-required confined space unless
this:
- Would increase the overall risk of injury
to entrants
or
- Wouldn't contribute to the rescue of the
entrant.
• Make sure each entrant uses a chest or
full-body harness, with a retrieval line attached to the harness
at one of the following locations:
- At the center of the employee’s back,
near shoulder level.
- Above the employee’s head.
- At another point which presents a profile
small enough for the successful removal of the employee.
• Attach the retrieval line to a mechanical
device or fixed point outside the space, so rescue can begin as
soon as necessary.
• Make sure a mechanical device is available
to retrieve entrants from vertical spaces more than 5 feet (1.52
m) deep.
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Note:
When you can demonstrate that the use
of a chest or full-body harness isn't feasible or creates
a greater hazard, then you may use wristlets or another
method shown to be the safest and most effective alternative.
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WAC
296-809-50018
Make sure entry supervisors perform
their responsibilities and duties
You must
• Make sure that an entry supervisor:
- Authorizes the entry into a permit-required
confined space by signing the entry permit.
- Oversees entry operations.
- Knows about the hazards that may be faced
during entry, including the mode, signs or symptoms, and consequences
of the exposure.
- Verifies and checks all
of the following:
• The appropriate entries have been
made on the permit
• All tests specified by the permit have been conducted
• All procedures and equipment specified by the permit
are in place before approving the permit and allowing entry
to the space
- Terminates the entry and cancels the permit
when:
• The assigned task or job has been
completed
• A condition in the space that isn't covered by the
entry permit is discovered
- Verifies that rescue
services are available and that there is a way to contact them.
- Removes unauthorized individuals who enter
or attempt to enter the permit-required confined space during
entry operations.
- Determines that entry
operations remain consistent with the terms of the entry permit
and acceptable entry conditions are maintained:
• Whenever responsibility
for a permit-required space entry operation is transferred
and
• At regular
intervals dictated by the hazards and operations performed
within the space.
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Note:
- Make sure entry supervisors have
the required knowledge and proficiency to perform the
job duties and responsibilities required by this chapter.
- The entry supervisor may also perform other duties
under this chapter, such as attendant or entrant, if
they are trained and proficient in those duties.
- The responsibility of the entry supervisor may be
passed from one supervisor to another during an entry
operation. |
WAC
296-809-50020
Provide an attendant outside the permit-required
confined space
IMPORTANT:
• The number of attendants assigned should
be tailored to the requirements of the space and the work performed.
• You need to assess if it's appropriate
or possible to have multiple permit spaces monitored by a single
attendant, or have an attendant stationed at a location outside
each space. Video cameras and radios are examples of tools that
may assist an attendant monitoring more than one space.
• Attendants may be stationed at any location
outside the permit-required confined space if the duties described
in this section can be effectively performed for each space that's
monitored.
• Provide at least one attendant outside
the permit-required confined space during entry operations.
• Make sure each permit-required confined
space attendant:
- Understands the hazards that may be faced
during entry, including the mode, signs or symptoms, and results
of exposure to the hazards.
- Is aware of the behavioral effects of exposure
to the hazard.
- Continuously maintains an accurate count
of entrants in the space.
- Maintains an accurate record of who is in
the permit-required confined space.
- Communicates with entrants as necessary
to monitor their status or alert them of the need to evacuate
the space.
- Monitors activities inside and outside the
space to determine if it's safe for entrants to remain in the
space.
- Orders entrants to evacuate the space immediately
if any of the following conditions occur:
• A prohibited condition.
• The behavioral effects of hazardous
exposure in an entrant.
• A situation outside the space that
could endanger entrants.
• The attendant can't effectively and
safely perform all the duties required in this chapter.
- Takes the following actions when unauthorized
persons approach or enter a space:
• Warn unauthorized persons to stay
away from the space
• Tells the unauthorized persons to
exit immediately if they have entered the space
• Informs entrants and the entry supervisor
if unauthorized persons have entered the space
- Performs non-entry rescues as specified by
your rescue procedure.
- Has the means to respond to an emergency
affecting one or more of the permit spaces being monitored without
preventing performance of the attendants duties to the other
spaces being monitored.
- Carries out no duties that might interfere
with their primary duty to monitor and protect the entrants.
- Calls for rescue and other emergency services
as soon as entrants may need assistance to escape from the space.
- Monitors entry operations until relieved
by another attendant or all entrants are out of the space.
WAC
296-809-50022
Make sure entrants know the hazardous
conditions and their duties
You must
• Make sure that all entrants:
- Know the hazards they may face during entry,
including the mode, signs or symptoms, and results of exposure
to the hazards.
- Use equipment properly.
- Communicate with the attendant as necessary
so the attendant can:
• Monitor entrant status.
• Alert entrants of the need
to evacuate.
- Alert the attendant whenever either
of these situations exist:
• A
warning sign or symptom of exposure to a dangerous situation
such as, behavioral changes, euphoria, giddiness potentially
from lack of oxygen or exposure to solvents.
• A prohibited
condition.
- Exit from the permit-required confined space
as quickly as possible when one of the following occurs:
• The attendant or entry supervisor
gives an order to evacuate.
• The
entrant recognizes any warning sign or symptom of exposure
to a dangerous situation.
• The
entrant detects a prohibited condition.
• An
evacuation alarm is activated.
WAC
296-809-50024
Implement procedures for ending entry
You must
• Make sure you terminate the entry
when entry operations are completed, including securing an entrance
cover and canceling the permit.
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