WGlossary
WCAG Levels
WCAG Conformance Levels (A, AA, AAA)
WCAG defines three levels: Level A (30 criteria in 2.2) is minimum accessibility; without it the site is practically unusable. Level AA (24 criteria) is the recommended standard, the one the ADA Title II rule, AODA and EN 301 549 point to. Level AAA (33 criteria) is maximum accessibility, rarely required in full.
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Checked against
WCAG 2.1/2.2 AA
ADA Title II
Section 508