ADA Title II WCAG 2.1 AA Requirements for Web and Mobile Content
Conformance Requirements:
To meet WCAG 2.1 Level AA, city websites, digital files, and subscribed services must follow all Level A and Level AA rules, including new ones added in WCAG 2.1.
WCAG 2.1 works with WCAG 2.0, so if you meet 2.1 standards, you also meet 2.0.
WCAG 2.1 Changes:
WCAG 2.1 adds 17 new rules to improve accessibility for mobile devices, low vision users, and experiences for users with cognitive disabilities making content easier to use without changing WCAG 2.0 standards.
Some Key Standards for WCAG 2.0 AA:
Keyboard Navigation: All features must work with a keyboard.
Color Contrast: Text and background colors must be easy to read with a minimum contrast ratio of 4.5:1 for normal text.
Resizable Text: Users must be able to resize text up to 200% without losing content or function.
Navigable Content: Users must be able to navigate and determine the user location on a page.
Labels and Instructions: Forms and controls must have clear labels and instructions.
Error Identification: Users must be alerted about errors with clear instructions to fix them.
Note: These standards are not inclusive. A full list of WCAG 2.0 AA standards may be referenced on W3C’s website.
New Standards in WCAG 2.1 AA:
Orientation: Content must work in portrait and landscape modes.
Input Purpose: Fields collecting user info must be labeled for easier autofill.
Responsiveness: Content should work well on small screens (like phones).
Non-Text Contrast: Buttons and controls must also meet contrast requirements of a 3:1 ratio.
Text Spacing: Users can change text spacing without breaking the design.
Hover or Focus Content: Pop-ups or tooltips must be easy to dismiss or interact with.
Keyboard Shortcuts: Users can turn off or adjust single-key shortcuts.
Pointer Gestures: Complex gestures (like two-finger swipes) must have simple alternatives.
Pointer Cancellation: Actions triggered by touch can be stopped or undone.
Label in Name: Visible labels should match what assistive tech announces.
Motion Controls: Features triggered by shaking or tilting must have another option (like changing the orientation of the content from portrait to landscape on a phone).
Status Messages: Updates (like form submissions) should notify users without disrupting their application flow.
Content Owner Responsibility
Content Audit and Remediation Identification:
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Accessibility and Quality Assurance Reports:
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Clear Headings and Labels:
Use a logical heading structure (H1, H2, H3) to organize content; all files and websites must use hierarchy in order (cannot create H4 before the creation of H2 or H3).
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Buttons, links, and form fields must be identified by the appropriate type and annotated.
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Assessing Navigation Aids:
Validate search helps users find specific content by identifying key words and forced page results.
We already display breadcrumb navigation to show users their location on our website; simplify the sitemap to reduce child pages. Ideally, our information architecture should be fewer than 4 levels.
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Descriptive Link Text:
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Accessible Forms:
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Logical Tab Order:
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Make use of the Branding Guidelines:
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Document Compliance:
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Content Updates:
Note: the Web Team will implement Site Improve Pre-publish for more proactive accessibility validation.
Information Technology Responsibility
Web Team and Developer Testing and Remediation Identification
Note: This would be ideally performed by a contracted and certified tester or service.
Ideal Testing
ITD public website and app development teams will conduct platform and website testing for functional performance of accessibility requirements. If budget allows, additional contracted services can support testing and auditing services to support remediation and conformance requirements.
1. Preparation
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Testing Tools:
Accessibility Evaluation Tools: WAVE, Site Improve
Screen Readers: NVDA
Mobile and Tablet Devices (iOS, Android)
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Testing Scope:
Test all pages (e.g., homepage, forms, media files, dynamic content).
Include variations such as desktop, mobile, and tablet views.
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Success Criteria:
2. Testing Steps
3. Evaluation and Documentation
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Report Issues:
Categorize issues by severity (critical, moderate, low).
Determine appropriate team or content owner to remediate issue.
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Re-Test After Fixes:
4. Ongoing Monitoring
Resources
WCAG 2.0 AA Guidelines: https://www.w3.org/TR/WCAG20/#wcag-2-layers-of-guidance
WCAG 2.1 AA Guidelines: https://www.w3.org/TR/2023/REC-WCAG21-20230921/