In 1971, OSHA released regulations, USASI Z53 and Z35 (ANSI 1967), regarding safety signs for workplaces. These regulations were a long time coming, and these signs helped protect workers from the hazards they faced on the job. The regulations proposed in 1971 then went unchanged for over forty years. Finally, in 2013, OSHA added ANSI Z535 (ANSI 2011) as a standard businesses could follow in addition to ANSI 1967 standards to be compliant. Since OSHA allows both standards, companies have the luxury (or burden) of choice. Both standards are compliant, and both have advantages and disadvantages.

Choices, Choices, Choices.

To keep your company safe and OSHA compliant, you have two choices when it comes to safety signs—which style best suits you?

Since OSHA’s 2013 Safety Sign update, businesses have two guides to follow to stay OSHA compliant. Companies can either adhere to ANSI 1967 or ANSI 2011.

Since both styles are OSHA compliant, this gives business some freedom of choice. Take a look at the differences in the two styles below, and pick whichever better fits your needs.

Big differences:

ANSI 1967 Sign

ANSI 1967

ANSI 2011 Sign

ANSI 2011

Often calls for short, easily-understood messagingMessaging is often used for longer, more complex messaging
Doesn’t always use symbolsStandardized, universally-understood symbols appear on every sign
Messaging is centered and text is written in all capsMessaging uses mix of upper and lower-case letters that reads from left to right, which can be easier to read
Doesn’t always incorporate description of hazard or consequence and instructive emergency statementIncludes additional information, such as hazard description and emergency info, which adds additional protection for company


OSHA Safety Sign Guide

A Guide to OSHA Safety Signs

This Guide to OSHA Safety Signs walks you through the recent updates to OSHA and ANSI sign requirements. You’ll learn the required components of OSHA safety signs, including tips for formatting and posting your signs.

Get Free OSHA Safety Sign Guide


ANSI Danger HeadersWhat it looks like: 
(ANSI 1967) Black/red header, white text states DANGER
(ANSI 2011) Red header, white text that states DANGER
What it means:
If hazard is not prevented, it will result in critical or fatal injury.


ANSI Warning HeadersWhat it looks like: 
Orange header, black text that states WARNING
What it means:
if hazard is not prevented, it could result in critical or fatal injury.


ANSI Caution HeadersWhat it looks like: 
(ANSI 1967) Black header, yellow text that states CAUTION
(ANSI 2011) Yellow header, black text that states: CAUTION
What it means:
If hazard is not prevented, it could result in minor, nonlethal injury.


ANSI Notice HeadersWhat it looks like: 
(ANSI 1967 and ANSI 2011) Blue heading, white text that states NOTICE
What it means:
Sign contains non-hazard-related information.

Safety Instructions

ANSI Safety Instructions HeaderWhat it looks like: 
(ANSI 1967 and ANSI 2011) Green header, white text that states SAFETY INSTRUCTIONS
What it means:
Message contains safety instructions or procedures

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