Control of Hazardous
Energy - Lockout/Tagout Plan
Douglas County has
established this Lockout/Tagout (LO/TO) Program to provide the maximum
protection to our employees whenever they must isolate machines or equipment
from energy sources and to prevent unexpected energization, start-up or
release of stored energy that could cause them injury.
The primary method of
guarding against hazardous energy will be accomplished by utilization of
this LO/TO program. This program is intended to meet or exceed minimum
requirements defined by Oregon Occupational Safety and Health Division
Our personnel involved
in the maintenance, repair and servicing of equipment that requires the
by-passing of guards are required to follow this policy. Those involved
will be instructed in the safety significance of the lockout procedures to
Each operator and
maintenance person will know all the energy sources within equipment,
machinery or process. All sources of energy are covered under the
procedures of this program, including electrical, mechanical, hydraulic,
pneumatic, chemical and thermal energy.
Repair and service on
cord and plug electrical equipment are required to have the electric
cord pulled from the energy source prior to repair. If the plug remains
under the exclusive control of the employee performing the servicing and
there are no other sources of energy (mechanical, pneumatic, hydraulic, or
stored energy), no additional LO/TO procedures are required.
The key definitions
used in this program and in the regulations are found in Appendix A and a
listing of the equipment/processes included in this policy are in Appendix
of authorized employees are responsible to provide instruction on the
LO/TO procedures and their safety significance as outlined in the training
requirements of this program. The supervisors are responsible for
conducting periodic audits to ensure that proper LO/TO procedures are being
followed and record the results of the audit.
2. Safety Manager
is responsible to see that the overall policy is developed and works with
the department supervisors, safety committee and employees to ensure
implementation. The Safety Manager is responsible to see that periodic
audits and review of the policy are completed annually.
departments will identify those who are authorized to implement the LO/TO
procedure. Authorized staff receive special training to recognize and
understand the particular hazards involved with the tasks to be performed
and the type and magnitude of energy to be controlled. In general the
following are authorized to lockout equipment:
Data Processing Staff
Facilities: Maintenance Staff
Fairgrounds: Maintenance Staff
Fleet Services: Mechanics & Service Personnel
Health Department: Building Maintenance
Parks Department: Mechanics, Equipment Operators & Maintenance Staff
Salmon Harbor: Maintenance Staff
Bridge and Special Project Staff
Solid Waste, Traffic Safety, Vegetation and District Operations Employees
(note: in general they do not repair their own equipment but if they do,
then control of energy must be followed)
Mobile Equipment is covered by the Fleet services Department Lockout
Plan. At times other County Departments do completed basic
repairs on various piece of equipment and must follow Fleet’s plan.
An employee whose job
requires him/her to operate or use a machine or equipment on which servicing
and maintenance is being performed under LO/TO, or whose job requires
him/her to work in an area in which such servicing or maintenance is being
employee’s responsibility is to ensure that they do not attempt to operate
any equipment being LO/TO and follow all safety procedures in shut down and
5. All Other
Employees who may see lockout/tagout on equipment are to honor the locks
and tags and make no attempt to start or remove the devices.
A key component of this program is employee training. It is the
supervisor’s responsibility to see that all employees involved in this
program are trained. The authorized employees are to receive additional
specialized training as outlined in this program. The training must be
documented by the Supervisor.
7. All Employees
who observe inadequacies in the performance of lockout/tagout or
deficiencies in this program are to report the information to their
Each piece of
equipment has been identified along with the lockout issues. See Appendix B
for complete listing of individual equipment. The Lockout procedures
section of this program outlines the procedures by “like” pieces of
equipment. The electrical disconnects are labeled and are all in near
vicinity of the equipment.
1. All equipment
energy sources capable of being locked out during servicing, repair,
or maintenance will be locked-out to prevent accidental or inadvertent
operations which could cause injury.
sources can include: electrical, pneumatic, hydraulic, stored energy:
gravity, springs; thermal; fluid flow - pressure.
energy sources not capable of being locked out will be isolated and then
tagged-out to inform all others of the safety procedure in use and warning
that no operation of the equipment is permitted.
A. Example of
some equipment not capable of being locked out may include: 110 circuit
older power panel installations.
B. Tags will
be used at these energy isolating devices. The Department will design
being locked-out if major replacement, repair, renovation or modifications
are made on the
systems or equipment.
conditions requiring lockout or tagout devices at our facilities include:
repairs, servicing and/or changes are being done on machines or equipment
safeguards are by-passed, or work on electrical circuits in which the
employee could come into
with hazardous energy occurs (mechanical, pneumatic, hydraulic, or stored
moving parts of machinery or equipment are being cleaned or oiled and
with movable parts is possible.
C. When it
becomes necessary to remove a plug or to clear blocked mechanisms or pumps
the employee to potential release of hazardous energy.
D. When working
on lines which contain hazardous substances, or high-pressure lines. Such
be clearly marked. Valves in the system should be capable of being locked
out. In the case
high-pressure lines, there should be a means of safely relieving pressure in
E. To lockout
power to equipment to prevent use by unauthorized persons and/or to prevent
4. No employee shall
attempt to operate any switch, valve, or other energy isolating device
bearing a lockout or tagout
5. Lock securing
switch levers to prevent activation of electrical circuits or equipment on
which work is being done. If it is not capable of being locked, apply a
tagout which is securely fastened to the disconnect lever or at the
immediate area to warn of the on-going procedure.
6. Other basic
controls that may be needed due to the type of energy present include:
Hydraulic Energy: Close valve and bleed off line or block the device.
Pressure: Close valve and bleed off pressure from line prior to working
on the device. Note:
some valves when
they lose pressure open, which can cause hydraulic or other liquid flows
be hazardous to employees. These valves must be isolated and controlled.
Attach a hold down device or leave in open position where no stored energy
Flow - Water Pressure: Insure proper gate devices are used that hold
or drain lines so no fluid pressures present.
1. Locks, tags and
hasps will be used as energy isolating devices. Valves with handle and lock
attachment hole will be locked out. If the locks become damaged in anyway
immediately seek a replacement lock.
2. Valves not
capable of being locked-out will have tags placed on them with a slip lock
plastic attachment device capable of withstanding 50 pounds of pressure.
3. The hardware is
required to meet the following criteria:
Durable to withstand weather and all types of exposures.
Standardized by color, or shape, or size, or format.
Locks substantial so they cannot be removed without excessive force.
Only device used for controlling energy and not used for other purposes.
Tags substantial to prevent inadvertent or accidental removal.
Tag attachment devices need to be non-reusable, attached by hand,
unlocking strength of no less than 50 pounds.
Lockout/tagout devices - shall indicate identity of employee applying
Tag must have a written warning on it, i.e., Do Not Start.
4. Locks, tags,
hasps, chains, and other restraining devices will be kept by each authorized
employee. Additional locks and equipment will be kept at the lockout
center in the tool room service center. Each supervisor will review
the location of the lockout centers and how to obtain additional lockout
equipment as necessary.
5. Out of Service
Tag: The production and maintenance staff may need to use an out of
service tag when a piece of equipment is not functioning properly and it
needs to be removed from service for the protection of the equipment.
OUT-OF-SERVICE TAG IS NOT TO BE USED FOR LOCKOUT/TAGOUT HAZARDOUS ENERGY
CONTROL. OUT-OF SERVICE TAGS WILL BE “CAUTION TAG” YELLOW IN COLOR.
once work begins on the equipment that places the employee in danger of
hazardous energy release the authorized employee(s) must place their
personal lock and tag on the energy isolating device.
SEQUENCE FOR A LOCKOUT
OR TAGOUT PROCEDURE
procedure must be conducted in the following manner. No deviations will be
authorized employee shall notify the affected employees that the
lockout/tagout system is going to be utilized. In many cases no one’s safety
will be affected by our maintenance and repair activities, thus there will
not be any affected employees.
2. If a particular
piece of equipment is operating, it must be shut down by the normal stopping
procedure such as depressing the stop button or opening the switch. Some
equipment has detailed procedures that need to be followed by trained
3. The authorized
person shall lock out and tag out the energy isolating device of the
equipment or machines with their individual assigned lock or by using
individually keyed locks. These devices are assigned to each maintenance
employee as part of his/her tools. The locks in the lockout center are
individually keyed and can be used by other authorized employees or for
additional hardware if multiple disconnects must be locked out during
4. The authorized
employee must operate the switch, valve or other energy isolating device to
make sure the equipment is isolated from its energy source. Stored energy,
such as the energy found in springs, rotating fly wheels, hydraulic system
or compressed air or gas lines must be dissipated or restrained by either
repositioning, blocking or bleeding down.
5. After ensuring
that no personnel are exposed, the authorized person shall complete another
check to make sure that all of the energy sources have been disconnected.
The type of verification testing will depend on the type of equipment or
electrical installation. Equipment may be tested by trying to operate it by
turning on the controls.
operating controls to neutral or off position after test.
6. Many of the
electrical disconnects operating various pieces of equipment can be locked
out; however, if other equipment energy requiring control cannot be
locked-out then a tagout device will be used. The tagout device must be
attached on or as close as possible to the energy isolating device. The tag
must clearly indicate that the operation or start-up of the energy isolating
device from the safe or off position is prohibited.
At times, some of our
equipment must be tested or positioned while doing maintenance or repair.
The following procedure must be followed under those conditions:
1. Clear the machine
or equipment of all tools and materials that are non-essential
2. Make sure that
all of the employees are clear of the machine or equipment and
notify them that the machine will be
3. The authorized
employee shall remove the lock.
4. Energize and
proceed with the testing or positioning.
5. De-energize all
systems and complete the shut down procedures before continuing any
maintenance or service.
RESTORING EQUIPMENT TO
NORMAL OPERATIONAL STATUS
When the authorized
employee has completed their work, then the lockout device and tag can be
removed. The following procedure will be followed during that process:
1. The authorized
person shall inspect the work area to make sure that all of their tools have
been removed from the machine and ensure that the machine or equipment
components are operationally intact.
2. Check the work
area to ensure that all employees have been safely positioned or removed.
3. Notify all of the
affected employees that the equipment is to be restarted.
4. Remove Lockout
and Tagout device.
authorized employee is the only person who shall remove the lockout or
tagout device. The only exception to this is under the following
REMOVAL BY SOMEONE
OTHER THAN THE PERSON THAT APPLIED THE LOCK:
Removal of a safety
lockout or tagout device by any other person other than the authorized
employee, who applied it, may only be done under the direction of the
supervisor, under the following procedure.
1. The supervisor
will verify that the authorized employee who applied the device is not at
the facility by checking with the immediate supervisor and co-workers.
2. The supervisor
will call the authorized employee at home if possible to inform him that his
lockout and/or tagout device needs to be removed. If the employee cannot
return to remove the lock then the supervisor will inform the person that
the lock is being removed. The supervisor or lead person may then use a
master key or second key that is kept in a locked, inaccessible location
known only to the supervisor and remove the lockout device.
3. The supervisor
must follow all the correct protocols for removal of a lockout or tagout
as outlined above and safely place the equipment back in service and then
notify affected employees.
4. If all reasonable
efforts have been made to contact the authorized employee, but the person
was not reachable, the supervisor will ensure that the authorized
employee upon return to work will know that his/her lock was removed and
that routine operation of the equipment is now occurring.
PROCEDURE INVOLVING MORE
THAN ONE PERSON
If more than one
employee is required to lockout or tagout equipment, each shall place
his/her own personal lockout device or tagout device on the energy isolating
device(s). When an energy isolation device cannot accept multiple locks or
tags, a multiple lockout or tagout device (hasp) is to be used.
SHIFT OR PERSONNEL
During shift or
personnel changes the hazardous energy control responsibility will be
transferred in a manner that maintains uninterrupted protection for the
1. All employees in
the immediate affected work area shall be informed of the transfer of
lockout/tagout devices between the off-going and oncoming employees.
2. On-coming shift
employees must verify the equipment has been de-energized and proper
procedures have been followed.
3. The on-coming
authorized employee shall apply his/her own lockout/tagout device to the
energy control source prior to the removal of the lockout/tagout device by
the off-going employee.
4. The on-coming
authorized employee shall ensure that no personnel are exposed, and as a
check that all energy sources are disconnected, operate the push button or
other normal operating controls to make certain the equipment will not
operate. Return operating control(s) to the “off” position after the
When we hire outside
contractors to come into our facility to work on our machines and equipment,
their activities may create hazards which normally are not present to our
A copy of our
procedures will be given to that contractor and a mutually agreed upon
procedure established concerning the lockout/tagout devices that will be
used to protect our employees and the contractor's workers. This
coordination will help to ensure that all of our employees know what kind of
work is to be performed, where and when it is to be performed, and how they
are being protected.
supervisor or other project manager will identify the energy isolating
devices for the contractor. The contractor’s employees will be responsible
to lockout all devices capable of locking or place a energy control tag on
or as near the device as possible.
Periodic inspection is
intended to assure that the energy control procedures continue to be
implemented properly, and that the employees involved are familiar with
their responsibilities. OSHA requires that an inspection type audit of
lockout procedure must be done AT LEAST ANNUALLY.
1. Supervisor will
assign a periodic inspection of the Lockout/Tagout Program procedures to be
performed at least annually to ensure that the procedure and the
requirements of Oregon OSHA rules are being followed. (Note: the audits
must be done by an authorized person and he/she cannot audit their own job)
2. The periodic
inspection will be performed by an authorized employee not involved in the
energy control procedure being inspected. The inspector must determine
a. Whether the
steps in the energy control procedure are being followed
b. Whether the
employees involved know their responsibilities under the procedure, and:
c. Whether the
procedure is adequate to provide necessary protection and what changes, if
3. The inspector
will observe and talk with the employees in order to make these
determinations. These inspections are intended to provide immediate feedback
and action to correct any inadequacies observed.
4. Written records
shall be made of these inspections and the findings of these inspections
will be kept by the Safety Manager. See Appendix C for the Audit
Retraining will be
conducted whenever a periodic inspection reveals, or whenever there is
reason to believe, that there are deviations from or inadequacies in the
employee’s knowledge or use of the energy control procedures. The
retraining will re-establish employee proficiency and introduce new or
revised control methods and procedures as necessary. SEE APPENDIX D
EMPLOYEE TRAINING MATERIALS.
Annual training review
of this program by all affected and authorized employees is recommended.
DOCUMENTATION OF TRAINING
The Supervisor or lead
person will document that employee training has been accomplished and is
being kept up-to-date. The certification shall be an individual certificate
of training for each employee receiving the training.
includes each employee’s name, employee number, job title, signature line
for the employee and training date, signature line for the supervisor or
qualified person conducting the training, their job position and date.
shall be filed in the employee’s personnel folder in the Human Resources
whose job requires him/her to operate or use a machine or equipment on which
servicing or maintenance is being performed under lockout or tagout, or
whose job requires him/her to work in an area in which such servicing or
maintenance is being performed. The affected employee's
safety may be effected by the de-energization of the equipment.
(An example would be
at a maintenance shop when the air compressor will be shut down for
maintenance and repair and the garage repair personnel have a vehicle on the
hydraulic hoist. The lack of air pressure could cause the hoist to lower
without notice. In this case, the garage staff would be affected
A person who
locks or implements a tagout system procedure on machines or equipment to
perform the servicing or maintenance on that machine or equipment. An
authorized employee and an affected employee may be the same person when the
affected employee's duties also include performing maintenance or service on
a machine or equipment which must be locked or a tagout system implemented.
"Capable of being
isolating device will be considered to be capable of being locked out either
if it is designed with a hasp or other attachment or integral part to which,
or through which, a lock can be affixed, or if it has a locking mechanism
built into it. Other energy isolating devices will also be considered to be
capable of being locked out, if lockout can be achieved without the need to
dismantle, rebuild, or replace the energy isolating device or permanently
alter its energy control capability.
device that physically prevents the transmission or release of energy,
including but not limited to the following: A manually operated electrical
circuit breaker; a disconnect switch; a manually operated switch by which
the conductors of a circuit can be disconnected from all ungrounded supply
conductors and, in addition, no pole can be operated independently; a slide
gate; a slip blind; a line valve; a block; and any similar device used to
block or isolate energy. The term does not include a push button, selector
switch, and other control circuit type devices.
Any source of
electrical, mechanical, hydraulic, pneumatic, chemical, thermal, or other
A device that
utilizes a positive means such as a lock, either key or combination type, to
hold an energy isolating device in the safe position and prevent the
energizing of a machine or equipment.
This is a tag
that is placed on equipment controls or at the main disconnect to notify
other personnel that the equipment or process is taken out of service
because it is not functioning properly or equipment damage may occur or
personnel does not want the equipment on-line for process reasons. It is
never to be used as an energy control tagout. THIS TAG STATES:
A warning device,
such as a tag and a means of attachment, which can be securely fastened to 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. THIS TAG STATES:
SIGNED _________________ DATE________
BACKSIDE OF THE TAG
STATES: “DO NOT REMOVE THIS TAG”