Prohibition Symbol | Universal No Entry Sign for Safety and Compliance #3061914 (License: Personal Use)

This iconic symbol consists of a thick red circular border with a bold red diagonal line crossing from upper left to lower right over a solid black field, ensuring maximum visibility and recognition. It is standardized under ISO 7010 and used globally to denote prohibited activities, restricted zones, or unsafe behaviors. Its simplicity and color contrast make it effective even at a distance or in low-light conditions.

Used on safety signs, traffic signage, product labels, digital interfaces, and public notices to indicate restrictions (e.g., no smoking, no entry, no parking). Matches user intent for understanding rules, avoiding violations, or designing compliant visual communication.