Why Social Media Accessibility Matters
Government agencies and businesses increasingly use social media to share important information — emergency alerts, public meetings, service updates, job postings, and community events. If that content isn't accessible, people with disabilities are cut off from essential information.
Under the ADA, the obligation to communicate effectively with people with disabilities applies to all channelsyou use — including social media platforms, email newsletters, videos, and digital graphics.
Alt Text on Images
Every image posted on social media that conveys information needs alt text (alternative text) — a written description that screen readers read aloud. Most platforms now support it:
- X (Twitter): When composing a post with an image, click "Add description" on the image thumbnail
- Facebook: Click "Edit" on an uploaded photo and select "Alternative Text"
- Instagram: On the final screen before posting, tap "Advanced Settings" → "Write Alt Text"
- LinkedIn: Click the image after uploading and select "Add alt text"
Good alt text describes what the image shows and why it matters in context. "Photo of a building" is vague. "Accessible entrance to City Hall showing automatic doors and level entry" is useful.
Official Standard
WCAG 2.1 SC 1.1.1 — Non-text Content (Level A)
"All non-text content that is presented to the user has a text alternative that serves the equivalent purpose, except for" specified exceptions such as decorative images, CAPTCHAs, and content that is purely sensory. Images posted on social media that convey information require meaningful text alternatives.
Captions on Videos
All videos shared on social media must have accurate captions. This includes prerecorded videos and live streams.
- Auto-generated captions are not sufficient:Platforms like YouTube and Facebook auto-generate captions, but they're often inaccurate — especially with names, technical terms, accents, or multiple speakers. You must review and correct auto-generated captions before publishing.
- Burned-in vs. closed captions: Closed captions (that can be turned on/off) are preferred because users can customize size and appearance. If the platform doesn't support closed captions, burn the captions directly into the video (open captions).
- Caption quality: Captions must be synchronized with the audio, include speaker identification when multiple people speak, and note relevant non-speech sounds (like "[applause]" or "[alarm sounding]").
Official Standard
WCAG 2.1 SC 1.2.2 — Captions (Prerecorded) (Level A)
"Captions are provided for all prerecorded audio content in synchronized media."
SC 1.2.4 — Captions (Live) (Level AA)
"Captions are provided for all live audio content in synchronized media."
Audio Descriptions for Video
Audio descriptions narrate important visual information that isn't conveyed through dialogue alone. They help people who are blind or have low vision understand what's happening on screen.
- During natural pauses in dialogue, a narrator describes key visual elements — actions, scene changes, on-screen text, and facial expressions that convey meaning
- When needed: Any video where important information is conveyed visually — a presentation with slides, a demonstration, a tour of a facility
- When not needed: A "talking head" video where one person speaks directly to the camera with no visual content beyond their face
WCAG 2.1 SC 1.2.5 — Audio Description (Prerecorded) (Level AA)
"Audio description is provided for all prerecorded video content in synchronized media." This applies to all prerecorded video where visual information is needed to understand the content.
Plain Language in Posts
Social media posts should be written in clear, simple language that's easy for everyone to understand — including people with cognitive disabilities, learning disabilities, or limited English proficiency:
- Use short sentences and common words
- Explain acronyms on first use (e.g., "ADA (Americans with Disabilities Act)")
- Put the most important information first
- Avoid jargon unless your audience expects it
Title II Web Rule & Social Media
The 2024 Title II web rule has specific provisions about social media:
- Preexisting posts are excepted: Social media posts published before the compliance date (April 2026 or 2027) don't need to retroactively meet WCAG 2.1.
- New posts must comply: After the compliance date, all new social media content posted by or for the government entity must meet WCAG 2.1 Level AA — including images with alt text, captioned videos, and accessible graphics.
- Third-party content is excepted: Comments and posts by members of the public on a government's social media page are not the entity's responsibility.
- But broader obligations remain: Even apart from the web rule, Title II's effective communication requirement means government agencies must ensure their social media communications are accessible to people with disabilities.
Official Standard
28 CFR §35.202 — Exceptions
"(4) Preexisting social media posts" are excepted from the WCAG 2.1 conformance requirement.
"(2) Content posted by a third party" — content not posted by or under the control of the public entity is also excepted.
However, the general obligations under Title II — including effective communication (§35.160) and reasonable modifications (§35.130) — continue to apply to all content, including social media.
Live Streams & Real-Time Captioning
Live video is increasingly used for public meetings, press conferences, and community events. WCAG 2.1 Level AA requires real-time captions for live audio content.
- CART captioning (Communication Access Realtime Translation) uses a trained stenographer typing in real time. It's the most accurate option for live events.
- AI auto-captioning (like YouTube Live's auto captions) is improving but still makes significant errors, especially with names, technical terms, and accented speech. It may be acceptable for informal content but is generally not sufficient for official government proceedings.
- Post-event: After a live stream ends, review and correct the captions before the recording is posted permanently.
Important Note
This guide provides general information about social media and digital content accessibility. Accessibility obligations may vary based on whether you're a government entity (Title II) or private business (Title III). For legal advice about your specific situation, connect with an experienced ADA attorney.
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