The C3c road sign, officially 'Trânsito proibido a automóveis de mercadorias', is a prohibitory traffic sign used in Portugal. It clearly indicates that access is forbidden for both light and heavy goods vehicles. When you encounter this sign, you must not enter or use the road with such a vehicle and should seek an alternative lawful route. This sign is crucial for managing traffic flow and ensuring road safety by directing specific vehicle types away from certain areas or roads.
Master the C3c sign, which prohibits goods vehicles, to ensure compliance with Portuguese traffic law. Essential for your theory test revision, understanding this prohibitory sign's meaning and implications is key to safe driving.
C3c - Trânsito proibido a automóveis de mercadorias (Trânsito proibido a automóveis de mercadorias) belongs to the Portuguese prohibitory signs category in the Regulamento de Sinalização do Trânsito. It normally uses the red-bordered regulatory style associated with restrictions, limits, bans, or cancellation of a previous restriction. The official wording is: trânsito proibido a automóveis de mercadorias: indicação de acesso interdito a automóveis ligeiros e pesados de mercadorias. It creates a binding restriction from the point where it applies and normally continues until it is ended, replaced, or limited. For theory preparation, connect the sign to a concrete driving decision: where to look, when to slow, whether to stop or yield, which route or lane to choose, and whether any panel changes the scope of the rule. On the road, interpret it together with markings, traffic lights, police directions, temporary works signs, and any additional panel placed with it. A strong exam answer explains both recognition and behaviour: not only what the sign is called, but what a safe and lawful driver must do next.
C3c - Trânsito proibido a automóveis de mercadorias (Trânsito proibido a automóveis de mercadorias) means that the driver must understand and apply this official Portuguese instruction: trânsito proibido a automóveis de mercadorias: indicação de acesso interdito a automóveis ligeiros e pesados de mercadorias. In practical terms, you should not enter or use the road with the vehicle or road-user category covered by the prohibition, and choose a lawful alternative route.
Get clear, practical answers to the most common questions about the C3c - C3c - Trânsito proibido a automóveis de mercadorias (Trânsito proibido a automóveis de mercadorias) road sign. Learn how the sign works, what rules it represents, and how it affects real driving situations. This FAQ strengthens your understanding and supports accurate decision making for the Portuguese driving theory exam in Portugal.
The C3c sign specifically prohibits the entry of 'automóveis de mercadorias', which translates to goods vehicles. This includes both light and heavy goods vehicles. You must not drive these types of vehicles past this sign.
No, the C3c sign only prohibits goods vehicles. If you are driving a standard passenger car (automóvel ligeiro de passageiros) or a motorcycle, this sign does not apply to you, and you may proceed unless other signs indicate otherwise.
If you are driving a goods vehicle, you must treat the C3c sign as a strict prohibition. You are not allowed to proceed beyond the sign. You should find a lawful alternative route to your destination, obeying all other traffic signs and rules.
Generally, the C3c sign indicates a complete prohibition for goods vehicles. Exceptions are rare and would typically be indicated by an additional panel placed below the C3c sign, specifying certain conditions or times. Always look for supplementary signs.
For your Portuguese theory test, understanding the C3c sign means knowing precisely which vehicles are restricted and that you must find an alternative route if you are driving one of those vehicles. Exam questions often test whether you can correctly identify the forbidden vehicle category and the required driver action.
A clear reference image of the C3c - C3c - Trânsito proibido a automóveis de mercadorias (Trânsito proibido a automóveis de mercadorias) road sign used in Portugal.

The C3c - C3c - Trânsito proibido a automóveis de mercadorias (Trânsito proibido a automóveis de mercadorias) road sign may also be known by these alternative names or terms.
The C3c - C3c - Trânsito proibido a automóveis de mercadorias (Trânsito proibido a automóveis de mercadorias) road sign is part of the Prohibitory Signs category, which groups together signs with similar rules and functions.
Understanding related road signs is crucial for theory test revision and accurate sign recognition. Comparing signs like C3c with other prohibitory or restriction signs helps prevent common mistakes and improves your overall understanding of traffic rules.

Understand the C1 'Sentido Proibido' (No Entry) Road Sign

C10: Maintain Minimum Distance from Vehicle Ahead

No Right Turn Ahead: Understanding Portugal's C11a Prohibition Sign

Understand the C11b 'No Left Turn' Road Sign in Portugal

C12 Sign: No U-Turns Allowed Ahead

Obey the Maximum Speed Limit Indicated by the C13 Sign

The C14a 'No Overtaking' Sign Means You Must Not Overtake Most Vehicles
Learn the C14b Road Sign: No Overtaking for Heavy Vehicles
After reviewing the full list, explore signs by specific categories such as warning, regulatory, or informational to deepen your understanding. Practise recognizing signs in context and prepare effectively for your Portuguese driving licence theory test.
All Portuguese Road Signs List