WQI.web​qualityindex

Accessibility

Section 508

If you sell to the U.S. federal government — or you ARE the U.S. federal government — your site has to clear this bar.

Authority
U.S. Access Board
Version
Refresh 2018
Jurisdiction
United States
Source
access-board.gov
Last reviewed
2026-04-28
Last verified
pending

What it is

Section 508 of the Rehabilitation Act, refreshed in 2018 to incorporate WCAG 2.0 Level AA by reference. Mandates accessibility for all federal agency websites and any vendor's electronic content procured by the federal government.

Why it matters

Federal RFPs require Section 508 conformance, often demonstrated via a VPAT (Voluntary Product Accessibility Template). No 508 conformance means you're disqualified before bid review.

Who it applies to

Applies to federal agencies (.gov) and any vendor selling electronic content to the U.S. government.

  • Site types: Government, SaaS / Product, Corporate / B2B, Education
  • Jurisdictions: United States

How WQI scores it

Web Quality Index considers this standard satisfied when all of the 5 supporting factors pass.

# Factor Status
54 Image alt text coverage planned
55 Heading hierarchy validity planned
56 Color contrast (WCAG AA) planned
57 ARIA labels presence and validity planned
58 Skip-to-content link planned

0 of 5 supporting factors are currently collected. Sites where the remaining 5 haven't been measured will show as partial or unknown on this standard until the data lands.

Related standards

Implements
WCAG AA
See also
ADA , WCAG AA

Standards that share factors with this one

Auto-computed from overlapping factor tickets in satisfiedBy, excluding standards already listed under "See also" above. Strong overlap suggests these standards rise and fall together when sites are scored.

Other references