With respect to Article 5.01 para.2, the competent authorities may, where necessary, regulate navigation on certain sections by also using special signs at control posts.
Note by the secretariat:
In accordance with article 9.06 the following administrations regulate navigation on certain sections by also using special signs at control posts:
1. Austria: special signs and signals apply on the “Struden” section of the Danube;
3. Netherlands: the administration may do so by using signs, but also by using Notices to Skippers with the same legal status as a sign;
4. Russian Federation: with regard mainly to sections with one-way traffic;