Principle 3 Understandable · Guideline 3.2: Predictable
3.2.3 Consistent Navigation
Navigation appears in the same place and order on every page.
What this means in practice
Once oriented, users should not have to reorient on each page. Extra items may appear, but the order stays.
Normative wording
The binding text lives at the W3C. What you read here is our own faithful rendering – not a quotation.