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French | Russian

1. When certain openings of fixed bridges are marked by:

one or more red lights or red-white-red boards (sign A.1, annex 7), such openings are prohibited for navigation.

2. When certain openings of fixed bridges are marked by:

(a) The sign D.1 (a) (annex 7), or

(b) The sign D.1 (b) (annex 7),

placed above the opening, it is recommended that these openings should be given preference.

...

If it is marked with the sign referred to in (b) above, it is closed to navigation coming from the other direction. In this case, the entrance of the other side is marked with the sign A.1 (annex 7).

3. When certain openings of fixed bridges are marked as specified in paragraph 2 above, vessels may use the unmarked openings only at their own risk.