CEVNI inland waterways: rules, signs and controlled passages

CEVNI supplies a common technical basis for inland-navigation rules across the UNECE region. Countries and river commissions implement that basis through their own law and may add local requirements. Passing a CEVNI knowledge test therefore demonstrates syllabus knowledge; it does not by itself prove practical competence, vessel compliance or permission for every European waterway.

Before a trip, identify the jurisdiction, the authority responsible for the waterway and the current local notices. Confirm required documents, vessel category, dimensions, equipment and any booking or reporting procedure separately from the revision question being studied.

Treat each display as a complete instruction. Record the sign family, colour, shape, symbol, arrow or distance plate, its position and the part of the waterway it controls. Vessel lights and day marks must also be read with the vessel type, direction of travel and encounter geometry; a familiar colour alone is not enough.

CEVNI meeting, overtaking and blue-board arrangements are inland rules with their own definitions and boundaries. Do not transfer a remembered COLREGs label into the situation without first establishing which inland rule and local modification apply.

A visible opening or empty lock chamber is not permission to enter. Observe the complete entry signal, wait for any required invitation or staff instruction, prepare lines and fenders, and keep clear of gates, sills, turbulence and commercial-vessel manoeuvring space. At bridges, verify the controlled opening, available headroom and any directional or timing restriction before committing.