Prohibition Symbol | Universal No Entry Sign for Safety and Compliance #3102777 (License: Personal Use)

This high-contrast red-on-white prohibition symbol consists of a bold red circle crossed by a diagonal red line from upper left to lower right, universally recognized to mean “not allowed” or “forbidden.” It is standardized in ISO 7010 and widely used in traffic control, workplace safety, and public signage to prevent hazardous or unauthorized behavior. Its simplicity ensures instant recognition across languages and cultures.

Used in safety manuals, regulatory documentation, website UI (e.g., disabled actions), and physical signage for restricted zones, prohibited items, or banned activities; matches user intent seeking clarity on restrictions or visual compliance symbols.