What to know for Inland Signs and Marks
Recognise sign categories and respond correctly before reaching bridges, locks, junctions, or restricted water.
Prohibitory, mandatory, restriction, recommendation, and information signs. This module is mapped to the published course boundary for CEVNI and Inland ICC Revision and written as an independent revision aid, not official training material.
Key Points
- Shape and colour often indicate the class of instruction
- Some signs prohibit; others require action
- Restrictions can apply to speed, width, depth, or wash
- Information signs help with facilities and route choices
Last reviewed: 6 July 2026 by Compass Revision curriculum review
Source notes
Revision checks
Use these checks before moving on. If one feels vague, reread the module and compare it with the linked official source before treating the topic as learned.
Core topic tags: prohibitory signs, mandatory signs, restriction signs, information signs.
Key Points
- Can you explain: Shape and colour often indicate the class of instruction?
- Can you explain: Some signs prohibit; others require action?
- Can you explain: Restrictions can apply to speed, width, depth, or wash?
- Can you explain: Information signs help with facilities and route choices?
Source notes
Common mistakes
Most assessment and real-world errors come from misreading the situation, skipping a simple check, or treating a memory aid as a substitute for judgement.
Use this section as a pre-test: if you can explain why each mistake is risky, you are closer to usable knowledge.
Key Points
- Treating advice signs as mandatory
- Missing supplementary panels
- Reacting too late near locks or bridges