Article 1
1. The Member States which have coasts bordering on the North Sea or English Channel shall take all necessary and appropriate measures to ensure that vessels availing themselves of the services of a deep-sea pilot for pilotage in the North Sea or the English Channel be provided with adequately qualified deep-sea pilots in possession of a certificate delivered by a competent authority of one of these Member States certifying that such pilots are qualified to pilot vessels in the North Sea and the English Channel. 2. Each Member State shall take all necessary and appropriate measures to encourage vessels flying its national flag to avail themselves, in the North Sea and the English Channel, of the services of only those deep-sea pilots who are in possession of a certificate as referred to in paragraph 1 or of an equivalent certificate delivered by another North Sea coastal State, when seeking the assistance of deep-sea pilots.