Regulatory signs tell road users what they MUST or MUST NOT do. Disobeying a regulatory sign is a serious criminal road traffic offence.

Two Main Types of Regulatory Signs:

1. Prohibitory Signs (Red Circles): Tell you what is strictly forbidden.
   • No Entry: Red circle with white horizontal bar.
   • No U-Turn: Red circle with crossed-out U-turn arrow.
   • No Overtaking: Red circle showing two cars side-by-side.
   • Speed Limit: Black number inside a red border circle.
2. Mandatory Command Signs (Blue Circles): Tell you actions you must execute (e.g. Keep Left, Turn Left Only, Minimum Speed).

Special Shapes:

• STOP Sign: 8-sided red octagon. Requires an absolute full stop where wheels completely cease turning behind the stop line.
• YIELD Sign: Downward-pointing triangle with red border. Requires you to give right of way to all oncoming/intersecting vehicles.