Choosing the Proper Header
The ANSI Z535 standards modernize the hazard alert system that uses different signal words and colors to distinguish between different levels of hazards. We recommend utilizing these carefully researched standards to provide more uniform and consistent visual communications that promote recognition and avoidance of hazards.
A header, also known as a signal word, helps communicate the severity and importance of your message.
Using the signal words mentioned below will ensure you are in compliance with the aforementioned ANSI and OSHA standards and specifications for the accident prevention, environmental and facility safety signs.
Safety Alert Symbol
The ANSI Z535 standards encourage the use of to indicate potential personal injury hazards. The safety alert symbol should not be used to alert persons to property damage- just for potential accidents or hazards.
ANSI Z535 '"favors" the use of ANSI style headers, but the traditional OSHA headers tend to be used more often.
ANSI Header![]() |
OSHA Header![]() |
DANGER Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. This signal word should be limited to the most extreme situations. |
ANSI Header |
OSHA Header |
WARNING Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. |
ANSI Header |
OSHA Header |
CAUTION Indicates a potentially hazardous situation which, if not avoided, could result in minor or moderate injury. It may also be used to alert against unsafe practices. |
ANSI Header![]() |
OSHA Header![]() |
NOTICE is used to indicate a statement of company policy, as the message relates directly or indirectly to the safety of personnel or the protection of property. This signal word should not be associated directly with a hazard or hazardous situation, and must not be used in the place of "DANGER" "WARNING" or "CAUTION." |
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CAUTION can be used without the safety alert symbol (![]() |
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GENERAL SAFETY sign legends are used to indicate general instructions relative to safe work practices, reminders of proper safety procedures, and the location of safety equipment. | |
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DIRECTIONAL arrows are used to indicate the direction to entrances, exits, emergency equipment, and other locations important to safety. |