This resource provides various Lockout/Tagout related WARNING safety signs that can be downloaded free of charge in PDF format, or optionally purchased premade for your convenience. Both OSHA 1910.145 and ANSI Z535.4-2002 compliant formats are available in landscape and portrait orientation.
WARNING safety signs are intended to indicate a potentially hazardous situation that, if not avoided, will result in death or serious injury. Hazards identified by the signal word WARNING present a lesser degree of risk of injury or death than those identified by the signal word DANGER.
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| All energy sources must be Locked Out before entry. |
| All energy sources must be Locked Out before removing guards. |
| All energy sources must be Locked Out before servicing. |
| All energy sources must be Locked Out before setup, maintenance or repair. |
| Always follow Lockout Procedures. |
| Always follow Lockout/Tagout procedures. |
| Always perform Lockout/Tagout to avoid accidents. |
| Authorized personnel only when machine is Locked Out. |
| Be Safe. Lock it Out. |
| Before cleaning, oiling or repair, all sources of power to the machine must be secure with a locking device and tagged out. |
| Before entry, all sources of power to the machine must be secure with a locking device and tagged out. |
| Before proceeding with repair work, all sources of power to the machine must be secure with a locking device and tagged out. |
| Before removing guards, all sources of power to the machine must be secure with a locking device and tagged out. |
| Before setup, maintenance or repair, all sources of power to the machine must be secure with a locking device and tagged out. |
| Block all movement and Lockout/Tagout before servicing. |
| DO NOT enter until after Lockout Procedures have been completed. |
| DO NOT perform setup, maintenance or repair until after Lockout Procedures have been completed. |
| DO NOT remove guards until after Lockout Procedures have been completed. |
| DO NOT service until after Lockout Procedures have been completed. |
| Did you remember to Lock Out your equipment. |
| Discharge all stored electrical energy and Lockout/Tagout before servicing. |
| Disconnect power and Lock Out before entry. |
| Disconnect power and Lock Out before removing guards. |
| Disconnect power and Lock Out before servicing. |
| Disconnect power and Lock Out before setup, maintenance or repair. |
| Dissipate rotation and Lockout/Tagout before servicing. |
| Do not clean, service, or adjust unless all power is secure. Follow Lockout/Tagout procedures. |
| Do not remove guards to clean, service, or adjust unless all power is OFF. Follow Lockout/Tagout procedures. |
| Eliminate doubt. Lock it Out. |
| Engage braking mechanism and Lockout/Tagout before servicing. |
| Follow Lockout Procedures before cleaning, oiling or repair. |
| Follow Lockout Procedures before entry. |
| Follow Lockout Procedures before removing guards. |
| Follow Lockout Procedures before servicing. |
| Follow Lockout Procedures before setup, maintenance or repair. |
| HAZARDOUS VOLTAGE! Contact will cause electrical shock or burns. Lockout/Tagout before servicing. |
| HAZARDOUS VOLTAGE! Devices inside this panel contain stored electrical energy. Discharge and Lockout/Tagout before servicing. |
| HAZARDOUS VOLTAGE! Lockout/Tagout before servicing. |
| HIGH VOLTAGE! Will shock, burn or cause death. Turn Off and Lock Out Main Power Disconnect before Servicing. |
| HIGH VOLTAGE! Will shock, burn or cause death. Turn Off and Lock Out Main Power Disconnect before Servicing. Do not operate with enclosure doors open or covers removed. |
| Keep Locked Out. |
| Lockout all energy sources before working on equipment. |
| Lockout all machinery prior to servicing. Failure to comply may result in disciplinary action. |
| Lockout electrical equipment before performing repairs. |
| Lockout electricity and air lines before working on equipment. |
| Lockout electricity before working on equipment. |
| Lockout equipment before entering. |
| Lockout for safety before use. |
| Lockout for safety. Shortcuts cause accidents. |
| Lockout power before entry. |
| Lockout power before removing guards. |
| Lockout power before servicing. |
| Lockout power before setup, maintenance or repair. |
| Lockout power to clean, oil or repair. |
| Lockout radiation source before entering. |
| Lockout/Tagout all power sources before entry. |
| Lockout/Tagout all power sources before removing guards. |
| Lockout/Tagout all power sources before servicing. |
| Lockout/Tagout all power sources before setup, maintenance or repair. |
| Lockout/Tagout before entry. |
| Lockout/Tagout before removing guards. |
| Lockout/Tagout before servicing. |
| Lockout/Tagout before setup, maintenance or repair. |
| Lockout/Tagout before working on equipment. |
| Lockout/Tagout procedures are mandatory. |
| Lockout/Tagout thermal energy source and wait until temperature is ambient before servicing. |
| Lockout/Tagout to clean, oil or repair. |
| Moving parts can cut or crush. Do not remove guards to clean, service, or adjust unless all power is OFF. Follow written Lockout/Tagout procedures. |
| Release all stored energies and Lockout/Tagout before servicing. |
| Release all stored energy from accumulator and Lockout/Tagout before servicing. |
| Relieve pressure and Lockout/Tagout before servicing. |
| Risk of serious injury. Do not clean, service, or adjust unless all power is secure. Follow written Lockout/Tagout procedures. |
| STORED ENERGY HAZARD! Block all movement and Lockout/Tagout before servicing. |
| STORED ENERGY HAZARD! Discharge all stored electrical energy and Lockout/Tagout before servicing. |
| STORED ENERGY HAZARD! Dissipate rotation and Lockout/Tagout before servicing. |
| STORED ENERGY HAZARD! Engage braking mechanism and Lockout/Tagout before servicing. |
| STORED ENERGY HAZARD! Lockout/Tagout thermal energy source and wait until temperature is ambient before servicing. |
| STORED ENERGY HAZARD! Release all stored energies and Lockout/Tagout before servicing. |
| STORED ENERGY HAZARD! Release all stored energy from accumulator and Lockout/Tagout before servicing. |
| STORED ENERGY HAZARD! Relieve pressure and Lockout/Tagout before servicing. |
| STORED ENERGY HAZARD! Secure components as required to prevent movement and Lockout/Tagout before servicing. |
| Secure components as required to prevent movement and Lockout/Tagout before servicing. |
| This equipment must be Locked Out when work is being done. |
| This machine has been locked out for your protection. |
| This machine must be Locked Out prior to servicing. |
| This machine starts automatically. Lockout required before entry. |
| This machine starts automatically. Lockout required before removing guards. |
| This machine starts automatically. Lockout required before servicing. |
| This machine starts automatically. Lockout required before setup, maintenance or repair. |
| Use a Lockout Device and Tagout during maintenance or any operator adjustment. |
| Use lockout device when machine is not in use. |
LEGEND
| | OSHA Landscape | | ANSI Landscape |
| | OSHA Landscape with Symbol | | ANSI Landscape with Symbol |
| | OSHA Portrait with Symbol | | ANSI Portrait with Symbol |
Title: WARNING Safety Signs
URL: http://www.deenergize.com/?target=WARNING_Safety_Signs
Printed: Tuesday November 4th, 2025
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