|Regional or national deviation from Article is possible under the provisions of Chapter 9|
1. Annex 7 to these regulations sets out the prohibitory, mandatory, restrictive, recommendatory and informative signs and auxiliary signs for inland waterways which are installed by the competent authorities to ensure safety and order of navigation. It also defines the meaning of each sign.
2. Without prejudice to the other provisions of these regulations or to any other provisions applicable,including the special instructions referred to in article 1.19, boatmen shall obey the rules and take account of the recommendations and information conveyed to them by the signs referred to in paragraph 1 above on the waterway or its banks.