How should you decide between two technically plausible CEVNI options?
Short answer
Test actor, viewpoint, direction, condition and consequence against the rule
Scope decides the item, not word shape. Some categorical wording is correct within a defined case, while technical or lengthy prose can still reverse direction or omit a condition. Falsify each option against the full rule and revisit Multiple Choice: Test Every Option Against Scope.
Sources and scope
Reviewed by Richard Moore on . This answer is scoped to european inland waterways; local rules still apply; check the current chart, publication, local rules and official operational guidance before acting afloat.
Quick check
How should you decide between two technically plausible CEVNI options?