Danger signs indicate an immediate hazard which, if not avoided, will result in death or serious injury.
Danger signs should be limited to the most extreme situations and signify that special precautions are necessary. The heading “DANGER” is printed in white letters on a red background and is preceded by the safety alert symbol (an equilateral triangle surrounding an exclamation mark). The message should be printed in black or red letters on a white background, or white letters on a black background. Additional safety symbols may be included in the message area.
OSHA states that there is to be no variation in the type of design of safety signs posted to warn of specific dangers and radiation hazards.
OSHA previously included an alternate header design which featured the word DANGER within a red oval on a black background. This header has been eliminated by ANSI. Existing compliance signs and labels already in use which feature this older header style may continue to be used. However, because OSHA states that there is to be no variation in the type of design of compliance signs posted to warn of specific dangers, warnings, and radiation hazards, if a facility is going to update their DANGER signs, they should do so universally to avoid an OSHA violation.