The Préfecture Maritime de la Manche et de la Mer du Nord is a key governmental authority overseeing maritime safety and environmental protection in the English Channel and North Sea. Their primary mission encompasses the publication of nautical notices, facilitating public awareness and safety for maritime navigation. The Préfecture is responsible for implementing state actions at sea, managing a wide array of maritime services that include accident prevention, marine renewable energy regulation, and environmental monitoring.

Additionally, the Préfecture actively participates in search and rescue operations, ensuring swift assistance to individuals in distress in the waters of the Pas de Calais and surrounding areas. They issue regular updates regarding marine conditions, urgent alerts for navigators, and provide practical information for recreational boating. The Préfecture also engages in extensive collaboration with local municipalities and maritime organizations to maintain safety standards and promote responsible maritime practices. Through their comprehensive services, they aim to safeguard mariners and enhance the overall environmental integrity of marine ecosystems.