Lockout / Tagout Steps
Step-by-step LOTO procedure (29 CFR 1910.147 cited by section).
Reference
Steps
- 1 Notify all affected employees that servicing or maintenance is starting and that the equipment will be locked out.
- 2 Identify the type and magnitude of energy the equipment uses; understand the hazards (electrical, hydraulic, pneumatic, mechanical, thermal, gravitational, chemical).
- 3 Shut the equipment down using the normal stopping procedure.
- 4 Isolate the equipment from its energy source by operating the energy-isolating device (disconnect, valve, breaker).
- 5 Apply a lockout / tagout device on every isolating device. Each authorized employee applies their own lock.
- 6 Release or restrain stored energy (capacitors, springs, suspended loads, hydraulic accumulators).
- 7 Verify isolation: try to start the equipment using the normal operating controls. Then return controls to off.
- 8 Service or maintain the equipment.
- 9 Reverse: remove tools, clear personnel, remove locks (each owner removes their own), and restore energy.
29 CFR 1910.147 by section number only.
Checked against published worked examples from: 29 CFR 1910.147 (cited by section number only).
Details, formula, and sources
Formula or table(reference page; no compute) Standard 9-step lockout / tagout sequence (notify, identify, shut down, isolate, lock, release stored energy, verify, service, reverse) as required by OSHA 29 CFR 1910.147 (control of hazardous energy).
Source and editionOSHA 29 CFR 1910.147 by section.
Free accessFree at ecfr.gov.
What governsEstimate. AHJ and licensed professional govern.
API field namescitation