A11ying with Sanna - Web Content Accessibility Guidelines a guide to the accessibility requirements
2 Operable

2.4.10 Section Headings

Conformance level: AAA
Criterion released in WCAG version: 2.0

Official description of the success criterion

Section headings are used to organize the content.

What to do?

Use section headings to organize content.

Why is it important?

Improves content structure and navigation for all users.

More about this criterion elsewhere