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1910.269(d)(1) Application
The provisions of paragraph (d) of this section apply to the use of lockout/tagout procedures for the control of energy sources in installations for the purpose of electric power generation, including related equipment for communication or metering. Locking and tagging procedures for the deenergizing of electric energy sources which are used exclusively for purposes of transmission and distribution are addressed by paragraph (m) of this section.

Note to paragraph (d)(1): Installations in electric power generation facilities that are not an integral part of, or inextricably commingled with, power generation processes or equipment are covered under §1910.147 and Subpart S of this part.
1910.269(d)(2) General
1910.269(d)(2)(i)
The employer shall establish a program consisting of energy control procedures, employee training, and periodic inspections to ensure that, before any employee performs any servicing or maintenance on a machine or equipment where the unexpected energizing, start up, or release of stored energy could occur and cause injury, the machine or equipment is isolated from the energy source and rendered inoperative.
1910.269(d)(2)(iii)
Procedures shall be developed, documented, and used for the control of potentially hazardous energy covered by paragraph (d) of this section.
1910.269(d)(2)(iv)
The procedure shall clearly and specifically outline the scope, purpose, responsibility, authorization, rules, and techniques to be applied to the control of hazardous energy, and the measures to enforce compliance including, but not limited to, the following:
1910.269(d)(2)(iv)(A)
A specific statement of the intended use of this procedure;
1910.269(d)(2)(iv)(B)
Specific procedural steps for shutting down, isolating, blocking and securing machines or equipment to control hazardous energy;
1910.269(d)(2)(iv)(C)
Specific procedural steps for the placement, removal, and transfer of lockout devices or tagout devices and the responsibility for them; and
1910.269(d)(2)(iv)(D)
Specific requirements for testing a machine or equipment to determine and verify the effectiveness of lockout devices, tagout devices, and other energy control measures.
1910.269(d)(2)(ix)
The employer shall certify that employee training has been accomplished and is being kept up to date. The certification shall contain each employee's name and dates of training.
1910.269(d)(2)(v)
The employer shall conduct a periodic inspection of the energy control procedure at least annually to ensure that the procedure and the provisions of paragraph (d) of this section are being followed.
1910.269(d)(2)(v)(A)
The periodic inspection shall be performed by an authorized employee who is not using the energy control procedure being inspected.
1910.269(d)(2)(v)(B)
The periodic inspection shall be designed to identify and correct any deviations or inadequacies.
1910.269(d)(2)(v)(C)
If lockout is used for energy control, the periodic inspection shall include a review, between the inspector and each authorized employee, of that employee's responsibilities under the energy control procedure being inspected.
1910.269(d)(2)(v)(D)
Where tagout is used for energy control, the periodic inspection shall include a review, between the inspector and each authorized and affected employee, of that employee's responsibilities under the energy control procedure being inspected, and the elements set forth in paragraph (d)(2)(vii) of this section.
1910.269(d)(2)(v)(E)
The employer shall certify that the inspections required by paragraph (d)(2)(v) of this section have been accomplished. The certification shall identify the machine or equipment on which the energy control procedure was being used, the date of the inspection, the employees included in the inspection, and the person performing the inspection.

Note to paragraph (d)(2)(v)(E): If normal work schedule and operation records demonstrate adequate inspection activity and contain the required information, no additional certification is required.
1910.269(d)(2)(vi)
The employer shall provide training to ensure that the purpose and function of the energy control program are understood by employees and that the knowledge and skills required for the safe application, usage, and removal of energy controls are acquired by employees. The training shall include the following:
1910.269(d)(2)(vi)(A)
Each authorized employee shall receive training in the recognition of applicable hazardous energy sources, the type and magnitude of energy available in the workplace, and in the methods and means necessary for energy isolation and control.
1910.269(d)(2)(vi)(B)
Each affected employee shall be instructed in the purpose and use of the energy control procedure.
1910.269(d)(2)(vi)(C)
All other employees whose work operations are or may be in an area where energy control procedures may be used shall be instructed about the procedures and about the prohibition relating to attempts to restart or reenergize machines or equipment that are locked out or tagged out.
1910.269(d)(2)(vii)
When tagout systems are used, employees shall also be trained in the following limitations of tags:
1910.269(d)(2)(vii)(A)
Tags are essentially warning devices affixed to energy isolating devices and do not provide the physical restraint on those devices that is provided by a lock.
1910.269(d)(2)(vii)(B)
When a tag is attached to an energy isolating means, it is not to be removed without authorization of the authorized person responsible for it, and it is never to be bypassed, ignored, or otherwise defeated.
1910.269(d)(2)(vii)(C)
Tags must be legible and understandable by all authorized employees, affected employees, and all other employees whose work operations are or may be in the area, in order to be effective.
1910.269(d)(2)(vii)(D)
Tags and their means of attachment must be made of materials which will withstand the environmental conditions encountered in the workplace.
1910.269(d)(2)(vii)(E)
Tags may evoke a false sense of security, and their meaning needs to be understood as part of the overall energy control program.
1910.269(d)(2)(vii)(F)
Tags must be securely attached to energy isolating devices so that they cannot be inadvertently or accidentally detached during use.
1910.269(d)(2)(viii)
Retraining shall be provided by the employer as follows:
1910.269(d)(2)(viii)(A)
Retraining shall be provided for all authorized and affected employees whenever there is a change in their job assignments, a change in machines, equipment, or processes that present a new hazard or whenever there is a change in the energy control procedures.
1910.269(d)(2)(viii)(B)
Retraining shall also be conducted whenever a periodic inspection under paragraph (d)(2)(v) of this section reveals, or whenever the employer has reason to believe, that there are deviations from or inadequacies in an employee's knowledge or use of the energy control procedures.
1910.269(d)(2)(viii)(C)
The retraining shall reestablish employee proficiency and shall introduce new or revised control methods and procedures, as necessary.
1910.269(d)(2)(ii)
The employer's energy control program under paragraph (d)(2) of this section shall meet the following requirements:
1910.269(d)(2)(ii)(A)
If an energy isolating device is not capable of being locked out, the employer's program shall use a tagout system.
1910.269(d)(2)(ii)(B)
If an energy isolating device is capable of being locked out, the employer's program shall use lockout, unless the employer can demonstrate that the use of a tagout system will provide full employee protection as follows:
1910.269(d)(2)(ii)(B)(1)
When a tagout device is used on an energy isolating device which is capable of being locked out, the tagout device shall be attached at the same location that the lockout device would have been attached, and the employer shall demonstrate that the tagout program will provide a level of safety equivalent to that obtained by the use of a lockout program.
1910.269(d)(2)(ii)(B)(2)
In demonstrating that a level of safety is achieved in the tagout program equivalent to the level of safety obtained by the use of a lockout program, the employer shall demonstrate full compliance with all tagout-related provisions of this standard together with such additional elements as are necessary to provide the equivalent safety available from the use of a lockout device. Additional means to be considered as part of the demonstration of full employee protection shall include the implementation of additional safety measures such as the removal of an isolating circuit element, blocking of a controlling switch, opening of an extra disconnecting device, or the removal of a valve handle to reduce the likelihood of inadvertent energizing.
1910.269(d)(2)(ii)(C)
After November 1, 1994, whenever replacement or major repair, renovation, or modification of a machine or equipment is performed, and whenever new machines or equipment are installed, energy isolating devices for such machines or equipment shall be designed to accept a lockout device.
1910.269(d)(3) Protective Materials and Hardware
1910.269(d)(3)(i)
Locks, tags, chains, wedges, key blocks, adapter pins, self-locking fasteners, or other hardware shall be provided by the employer for isolating, securing, or blocking of machines or equipment from energy sources.
1910.269(d)(3)(ii)
Lockout devices and tagout devices shall be singularly identified; shall be the only devices used for controlling energy; may not be used for other purposes; and shall meet the following requirements:
1910.269(d)(3)(ii)(A)
Lockout devices and tagout devices shall be capable of withstanding the environment to which they are exposed for the maximum period of time that exposure is expected
1910.269(d)(3)(ii)(A)(1)
Tagout devices shall be constructed and printed so that exposure to weather conditions or wet and damp locations will not cause the tag to deteriorate or the message on the tag to become illegible.
1910.269(d)(3)(ii)(A)(2)
Tagout devices shall be so constructed as not to deteriorate when used in corrosive environments.
1910.269(d)(3)(ii)(B)
Lockout devices and tagout devices shall be standardized within the facility in at least one of the following criteria: color, shape, size. Additionally, in the case of tagout devices, print and format shall be standardized.
1910.269(d)(3)(ii)(C)
Lockout devices shall be substantial enough to prevent removal without the use of excessive force or unusual techniques, such as with the use of bolt cutters or metal cutting tools.
1910.269(d)(3)(ii)(D)
Tagout devices, including their means of attachment, shall be substantial enough to prevent inadvertent or accidental removal. Tagout device attachment means shall be of a non-reusable type, attachable by hand, self-locking, and nonreleasable with a minimum unlocking strength of no less than 50 pounds and shall have the general design and basic characteristics of being at least equivalent to a one-piece, all-environment-tolerant nylon cable tie.
1910.269(d)(3)(ii)(E)
Each lockout device or tagout device shall include provisions for the identification of the employee applying the device.
1910.269(d)(3)(ii)(F)
Tagout devices shall warn against hazardous conditions if the machine or equipment is energized and shall include a legend such as the following: Do Not Start, Do Not Open, Do Not Close, Do Not Energize, Do Not Operate.

Note to paragraph (d)(3)(ii)(F): For specific provisions covering accident prevention tags, see §1910.145.
1910.269(d)(4) Energy Isolation
Lockout and tagout device application and removal may only be performed by the authorized employees who are performing the servicing or maintenance.
1910.269(d)(5) Notification
Affected employees shall be notified by the employer or authorized employee of the application and removal of lockout or tagout devices. Notification shall be given before the controls are applied and after they are removed from the machine or equipment.

Note to paragraph (d)(5): See also paragraph (d)(7) of this section, which requires that the second notification take place before the machine or equipment is reenergized.
1910.269(d)(6) Lockout/Tagout Application
The established procedures for the application of energy control (the lockout or tagout procedures) shall include the following elements and actions, and these procedures shall be performed in the following sequence:
1910.269(d)(6)(i)
Before an authorized or affected employee turns off a machine or equipment, the authorized employee shall have knowledge of the type and magnitude of the energy, the hazards of the energy to be controlled, and the method or means to control the energy.
1910.269(d)(6)(iii)
All energy isolating devices that are needed to control the energy to the machine or equipment shall be physically located and operated in such a manner as to isolate the machine or equipment from energy sources.
1910.269(d)(6)(iv)
Lockout or tagout devices shall be affixed to each energy isolating device by authorized employees.
1910.269(d)(6)(iv)(A)
Lockout devices shall be attached in a manner that will hold the energy isolating devices in a "safe" or "off" position.
1910.269(d)(6)(iv)(B)
Tagout devices shall be affixed in such a manner as will clearly indicate that the operation or movement of energy isolating devices from the "safe" or "off" position is prohibited.
1910.269(d)(6)(iv)(B)(1)
Where tagout devices are used with energy isolating devices designed with the capability of being locked out, the tag attachment shall be fastened at the same point at which the lock would have been attached.
1910.269(d)(6)(iv)(B)(2)
Where a tag cannot be affixed directly to the energy isolating device, the tag shall be located as close as safely possible to the device, in a position that will be immediately obvious to anyone attempting to operate the device.
1910.269(d)(6)(v)
Following the application of lockout or tagout devices to energy isolating devices, all potentially hazardous stored or residual energy shall be relieved, disconnected, restrained, or otherwise rendered safe.
1910.269(d)(6)(vi)
If there is a possibility of reaccumulation of stored energy to a hazardous level, verification of isolation shall be continued until the servicing or maintenance is completed or until the possibility of such accumulation no longer exists.
1910.269(d)(6)(vii)
Before starting work on machines or equipment that have been locked out or tagged out, the authorized employee shall verify that isolation and deenergizing of the machine or equipment have been accomplished. If normally energized parts will be exposed to contact by an employee while the machine or equipment is deenergized, a test shall be performed to ensure that these parts are deenergized.
1910.269(d)(6)(ii)
The machine or equipment shall be turned off or shut down using the procedures established for the machine or equipment. An orderly shutdown shall be used to avoid any additional or increased hazards to employees as a result of the equipment stoppage.
1910.269(d)(7) Release From Lockout/Tagout
Before lockout or tagout devices are removed and energy is restored to the machine or equipment, procedures shall be followed and actions taken by the authorized employees to ensure the following:
1910.269(d)(7)(i)
The work area shall be inspected to ensure that nonessential items have been removed and that machine or equipment components are operationally intact.
1910.269(d)(7)(iii)
After lockout or tagout devices have been removed and before a machine or equipment is started, affected employees shall be notified that the lockout or tagout devices have been removed.
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