Cut Sheet

G1
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Regulatory Standards
Index
Occupational Health and Safety
Administration (OSHA) Standard 29CFR
The Control of Hazardous Energy
(Lockout/Tagout) 1910.147
1910.147(a)
Scope, application and purpose -
1910.147(a)(1)
Scope
1910.147(a)(1)(i)
This standard covers the servicing and maintenance of machines and
equipment in which the unexpected energization or start up of the
machines or equipment, or release of stored energy could cause injury
to employees. This standard establishes minimum performance
requirements for the control of such hazardous energy.
1910.147(a)(1)(ii)
This standard does not cover the following:
1910.147(a)(1)(ii)(A)
Construction, agriculture and maritime employment;
1910.147(a)(1)(ii)(B)
Installations under the exclusive control of electric utilities for the purpose of
power generation, transmission and distribution, including related equipment
for communication or metering; and
1910.147(a)(1)(ii)(C)
Exposure to electrical hazards from work on, near, or with conductors or
equipment in electric utilization installations, which is covered by Subpart S
of this part; and
..1910.147(a)(1)(ii)(D)
1910.147(a)(1)(ii)(D)
Oil and gas well drilling and servicing.
1910.147(a)(2)
Application.
1910.147(a)(2)(i)
This standard applies to the control of energy during servicing and/or
maintenance of machines and equipment.
1910.147(a)(2)(ii)
Normal production operations are not covered by this standard (See Subpart
O of this Part). Servicing and/or maintenance which takes place during
normal production operations is covered by this standard only if:
1910.147(a)(2)(ii)(A)
An employee is required to remove or bypass a guard or other safety
device; or
1910.147(a)(2)(ii)(B)
An employee is required to place any part of his or her body into an area on
a machine or piece of equipment where work is actually performed upon the
material being processed (point of operation) or where an associated danger
zone exists during a machine operating cycle.