ANSI Z535 Safety Sign and Label Standard Guide
Use ANSI Z535 to align safety messaging across equipment and facilities.
Overview
ANSI Z535 provides the most widely accepted guidance for safety sign and label design in the United States. It standardizes signal words, colors, symbol usage, and message layout.
Format elements
ANSI Z535 signs typically include a signal word panel, a safety symbol, and a message panel with hazard, consequence, and avoidance instructions.
Signal word hierarchy
| Signal word | Severity level | Primary use | Common locations |
|---|---|---|---|
| DANGER | Highest | Immediate hazards | High voltage, confined spaces |
| WARNING | High | Serious hazards | Mechanical equipment, forklifts |
| CAUTION | Moderate | Moderate hazards | Slip, trip, or pinch points |
| NOTICE | Info | Property damage or operating info | Equipment instructions |
Materials and durability
Choose substrates based on exposure: aluminum for outdoor use, rigid PVC for indoor areas, and polyester for chemical or abrasion resistance.
Procurement checklist
Confirm signal word selection, pictogram usage, size for viewing distance, and material durability. Standardize templates across sites to reduce variations.
Frequently Asked Questions
Does ANSI Z535 replace OSHA requirements?
No. OSHA is regulatory, while ANSI provides design guidance. OSHA often references ANSI as the accepted format.
Can we customize colors or layouts?
Custom designs are possible, but deviating from ANSI can increase compliance risk and reduce recognition.
Do ANSI rules apply to labels on equipment?
Yes. ANSI Z535.4 covers product safety labels, including format and signal words.
How do we standardize across multiple plants?
Create a centralized template library and approved sign catalog with consistent signal words and materials.
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