Prohibition Sign Icon

Free Prohibition Sign icon for manufacturing documents. Transparent PNG, commercial use OK, no sign-up.

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Category: Safety & Maintenance · Updated 2026-10-03

About the Prohibition Sign

A prohibition sign is a circle with a diagonal slash that shows an action or item is not allowed. It is used on safety signs and warning posters in plants.

Where to use this icon

• Safety signage and warning posters
• Hazard prediction (KY) sheets and training slides

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