What is the difference between Section 508 and ADA?

Section 508 is a procurement and federal-operations rule under the Rehabilitation Act of 1973 — it applies to federal agencies, federal contractors, and recipients of federal funding, and uses WCAG 2.0 Level AA. The ADA is a broader civil rights statute that covers state/local government (Title II — WCAG 2.1 AA codified) and private public accommodations (Title III — WCAG 2.1 AA in practice). Many entities are subject to both: a federal agency website that also serves the public must satisfy Section 508 directly and the ADA principles via Section 504.

Does Section 508 use WCAG 2.0 or 2.1?

WCAG 2.0 Level AA. The 2018 "Section 508 Refresh" harmonized Section 508 with WCAG 2.0 AA. Pending bipartisan H.R. 3417 (the Websites and Software Applications Accessibility Act of 2025) would update Section 508 to WCAG 2.2 if enacted.

Which standard do I need to meet?

Depends on who you are: Federal agency, federal contractor, or federal funding recipient → Section 508 (WCAG 2.0 AA) AT MINIMUM. State or local government → ADA Title II (WCAG 2.1 AA). Private business serving the public → ADA Title III (courts apply WCAG 2.1 AA). HHS funding recipient (healthcare, education) → HHS Section 504 (WCAG 2.1 AA, May 2026 deadline). EU customers → EAA (EN 301 549, which includes WCAG 2.1 AA). Many entities meet multiple — the practical answer is target WCAG 2.1 AA (or 2.2 AA forward-looking).

Section 508 vs ADA

Section 508 of the Rehabilitation Act of 1973 governs federal agencies, contractors, and funding recipients — technical standard: WCAG 2.0 Level AA. The ADA is broader civil-rights law: Title II covers state and local government (WCAG 2.1 AA, deadlines April 26, 2027 / April 26, 2028 per April 2026 IFR), and Title III covers private public accommodations (courts apply WCAG 2.1 AA). Many organizations are subject to both.

Side-by-side comparison

Dimension	Section 508	ADA
Source statute	Section 508 of the Rehabilitation Act of 1973 (29 U.S.C. § 794d)	Americans with Disabilities Act of 1990 (42 U.S.C. §§ 12101+)
Who is covered	Federal agencies, federal contractors, recipients of federal funding	Title I: employers (15+ employees). Title II: state/local government. Title III: places of public accommodation.
Web technical standard	WCAG 2.0 Level AA (per 2018 Section 508 Refresh)	Title II: WCAG 2.1 Level AA (28 C.F.R. § 35.200). Title III: WCAG 2.1 AA as applied by courts and DOJ.
Enforcement body	U.S. Access Board (rule); GSA (federal acquisition); each agency (compliance)	U.S. Department of Justice (Title II/III) + private right of action
Private right of action?	No — enforcement is through federal channels and administrative complaints	Yes — individuals can sue under Title II and Title III
Key deadline	In force today; pending H.R. 3417 would upgrade baseline to WCAG 2.2	Title II: April 26, 2027 / April 26, 2028 (extended one year by April 2026 IFR)
Penalties	Loss of federal funding/contracts; corrective action; complaints	Title II: injunctive relief, compensatory damages, attorneys' fees, loss of federal funding. Title III: injunctive relief + attorneys' fees (state laws add damages — e.g., $4,000 per Unruh violation in CA)
Procurement obligation	YES — federal acquisition rules (FAR Part 39, 36 CFR Part 1194) require Section 508 conformance in IT purchases	NO direct procurement requirement, but covered entities must ensure third-party tools are accessible to satisfy Title II/III
Documentation expected	VPAT (Voluntary Product Accessibility Template) / ACR (Accessibility Conformance Report)	Accessibility statement; remediation roadmap; conformance testing records

When both apply

Many organizations are covered by both. A state university typically meets Section 508 (as a federal funding recipient) AND ADA Title II (as a state government entity). A hospital that accepts Medicare meets ADA Title III (public accommodation), HHS Section 504, and Section 508 (if it sells products to the federal government). The practical answer is to target the highest applicable standard — typically WCAG 2.1 Level AA, which satisfies Title II, Title III in practice, and is a superset of Section 508's WCAG 2.0 AA.

Official sources: section508.gov · ada.gov

FAQ

What is the difference between Section 508 and ADA?: Section 508 is a procurement and federal-operations rule under the Rehabilitation Act of 1973 — it applies to federal agencies, federal contractors, and recipients of federal funding, and uses WCAG 2.0 Level AA. The ADA is a broader civil rights statute that covers state/local government (Title II — WCAG 2.1 AA codified) and private public accommodations (Title III — WCAG 2.1 AA in practice). Many entities are subject to both: a federal agency website that also serves the public must satisfy Section 508 directly and the ADA principles via Section 504.
Does Section 508 use WCAG 2.0 or 2.1?: WCAG 2.0 Level AA. The 2018 "Section 508 Refresh" harmonized Section 508 with WCAG 2.0 AA. Pending bipartisan H.R. 3417 (the Websites and Software Applications Accessibility Act of 2025) would update Section 508 to WCAG 2.2 if enacted.
Which standard do I need to meet?: Depends on who you are: Federal agency, federal contractor, or federal funding recipient → Section 508 (WCAG 2.0 AA) AT MINIMUM. State or local government → ADA Title II (WCAG 2.1 AA). Private business serving the public → ADA Title III (courts apply WCAG 2.1 AA). HHS funding recipient (healthcare, education) → HHS Section 504 (WCAG 2.1 AA, May 2026 deadline). EU customers → EAA (EN 301 549, which includes WCAG 2.1 AA). Many entities meet multiple — the practical answer is target WCAG 2.1 AA (or 2.2 AA forward-looking).