No Drugs, Smoking, Alcohol, or Injection Signs - Prohibition Symbols Explained #3315840 (License: Personal Use)

The image displays four standardized red-circle prohibition signs: a cannabis leaf, a lit cigarette with smoke, a wine bottle with glass, and a syringe. Each symbol uses a bold black pictogram crossed by a diagonal red line to convey absolute restriction. These icons are widely adopted in public health, transportation, workplaces, and educational settings to enforce substance-free policies.

Commonly used on signage in schools, hospitals, airports, government buildings, and event venues to communicate zero-tolerance policies for illegal or hazardous substances. Matches user intent for understanding regulatory signage, designing safety materials, or creating compliance training resources.