ANSI Z535.1 Safety colors (USAS/ANSI Z53.1)

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This standard’s intent is to establish a safety color code that will alert and inform persons to take precautionary action or other appropriate action in the presence of hazards. The criteria of this standard apply to the use of safety color coding for signs and symbols covered by ANSI Z535.2, .3, .4, and .5. In poorly lit areas, lighting must be provided so that locations, objects, or safety signs that are color coded will be easily identifiable. To enhance visibility, colors selected for safety signs should have the maximum color contrast, especially lightness contrast. Maximum contrast between the sign and the surrounding environment should also be taken into consideration.

IBR approved for	Overview of requirements	IBR approved edition
29 CFR 1910.97(a)(3)(ii)	Employers must ensure that ANSI Z53.1-1967 or ANSI Z535.1-2006(R2011) is used for color specification for warning signs.	USAS Z53.1-1967 (ANSI Z53.1-1967) Safety Color Code for Marking Physical Hazards, and ANSI Z535.1-2006 (R2011), American National Standard for Safety Colors.
29 CFR 1910.145(d)(2)	Employers must ensure the colors red, black, and white used on danger signs are those of opaque glossy samples as specified in Table 1, “Fundamental Specification of Safety Colors for CIE Standard Source ‘C,’ ” of ANSI Z53.1-1967 or in Table 1, “Specification of the Safety Colors for CIE Illuminate C and the CIE 1931, 2º Standard Observer,” of ANSI Z535.1-2006(R2011).	USAS Z53.1-1967 (ANSI Z53.1-1967) Safety Color Code for Marking Physical Hazards, and ANSI Z535.1-2006 (R2011), American National Standard for Safety Colors.
29 CFR 1910.145(d)(4)	Employers must ensure the colors used on caution signs are those of opaque glossy samples as specified in Table 1 of ANSI Z53.1-1967 or Table 1 of ANSI Z535.1-2006(R2011).	USAS Z53.1-1967 (ANSI Z53.1-1967) Safety Color Code for Marking Physical Hazards, and ANSI Z535.1-2006 (R2011), American National Standard for Safety Colors.
29 CFR 1910.145(d)(6)	Employers must ensure the colors used on safety instruction signs are those of opaque glossy samples as specified in Table 1 of ANSI Z53.1-1967 or in Table 1 of ANSI Z535.1-2006(R2011).	USAS Z53.1-1967 (ANSI Z53.1-1967) Safety Color Code for Marking Physical Hazards, and ANSI Z535.1-2006 (R2011), American National Standard for Safety Colors.
29 CFR 1926.200(c)(3)	Employers must ensure the colors used on caution signs are those of opaque glossy samples as specified in Table 1 of ANSI Z53.1-1967 or in Table 1 of ANSI Z535.1-2006(R2011).	USA Z53.1-1967 (ANSI Z53.1-1967) Safety Color Code for Marking Physical Hazards, and ANSI Z535.1-2006 (R2011), American National Standard for Safety Colors.

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ANSI Z535.1 Safety colors (USAS/ANSI Z53.1)

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