Section 508 Captions: What Federal Rules Require

Section 508 requires captions on all prerecorded audio and all live audio in synchronized media, such as video and webinars. But it binds federal agencies, not churches or private event organizers. If you run meetings, services or events outside the federal government, other laws and good practice decide what you caption. Section 508 still gives you a clear benchmark for doing it well.

TL;DR

• Section 508 applies only to federal agencies. It does not cover churches or private event organizers, though other accessibility laws may.
• Captions are required for prerecorded and live audio in synchronized media, with a narrow exception for media clearly labeled as an alternative to text.
• The technical yardstick is WCAG 2.0, which includes live captions.
• Automated captions can fall short of federal standards, so plan for accuracy: vocabulary prep, review and saved transcripts.
• Live Caption AI puts live captions on every phone in the room through a QR code. It is an AI captioning tool, not a certified service.

Table of Contents

• What Section 508 is
• Who has to follow Section 508 caption rules
• What Section 508 requires for captions
• Caption quality: what the federal guidance says
• WCAG 2.0 and why it keeps coming up
• A note on automated captions
• Documenting your accessibility work
• What this means for your setting
• A simple caption setup for live sessions
• Try it for your next session
• FAQ
• Sources

What Section 508 is

Section 508 is part of the Rehabilitation Act. In 1998 Congress amended the Act to require federal agencies to make their electronic and information technology accessible to people with disabilities, according to the federal Section508.gov laws and policies page. Agencies must give employees and members of the public with disabilities access comparable to what everyone else gets.

The Access Board issued a refreshed set of standards in 2017. That final rule took effect on January 18, 2018. This “Section 508 Refresh” is why you now see WCAG, the Web Content Accessibility Guidelines, cited in nearly every caption conversation.

In short: Section 508 is the rulebook for federal ICT (information and communication technology). Captions are one part of it.

Who has to follow Section 508 caption rules

The answer is narrower than many web pages suggest.

• Federal agencies: yes. Section 508 applies only to federal agencies.
• Churches, private event organizers and other non-federal websites: no. The same official page says Section 508 does not apply to them, although they may be subject to other accessibility laws.
• Federal public meetings: they must meet all applicable Section 508 standards, and internal meetings must use accessible ICT, per the Accessible Meetings guidance.

So why do so many universities, vendors and nonprofits talk about it? Often because they work with federal agencies, sell to them, or use Section 508 and WCAG as a shared yardstick. Some states also extend similar rules to their own agencies. If you serve the public, the Americans with Disabilities Act (ADA) and its effective-communication expectations are usually the bigger question for you. That is a separate topic from Section 508, so confirm your obligations with your own counsel or compliance lead.

What Section 508 requires for captions

The core rule is simple. Section508.gov states that captions are required for all prerecorded audio and live audio in synchronized media. The one exception is prerecorded media clearly labeled as a media alternative for text.

The Access Board’s web baseline for synchronized media restates this in WCAG 2.0 terms.

A few details that matter in practice:

• Live counts. There is no “live is exempt” carve-out for synchronized media. Live webinars, town halls and streamed events need captions.
• Audio-only needs a transcript. For audio-only media such as a podcast, Section 508 requires a text transcript alongside the player.
• Players need controls. Where ICT displays video with synchronized audio, it must provide user controls for closed captions and audio descriptions.
• Not just video. “Synchronized media” means audio paired with video or other time-based content, so a recorded training with slides and narration qualifies.

Prerecorded vs. live captions

Live captions have no editing window. That makes vocabulary preparation and a clear audio feed the two biggest levers you control.

Exceptions

The original 2001 standards for video and multimedia products list a few. Small analog and digital television displays are exempt from caption-decoder circuitry, raw footage that is not a production need not be captioned, and only audio necessary to understand a production must be captioned. These are narrow and mostly relevant to equipment and production workflows, not to a typical live meeting.

Caption quality: what the federal guidance says

Section 508 is about more than having captions at all. Federal guidance gives practical presentation targets:

• A sans serif font and, by default, 18-point white text on a black translucent background.
• Captions limited to two lines at a time, with no more than 45 characters per line.

These are best practices for readability, and they are good targets for any room. When attendees read captions on their own phones, they can usually adjust text size to suit their eyes, which solves a common problem with a single shared screen.

WCAG 2.0 and why it keeps coming up

The refreshed Section 508 standards incorporate WCAG 2.0 Level AA. The Access Board describes the WCAG success criteria as more explicit and technology neutral than the original Section 508 standards.

For captions, the criteria to know are:

1. Captions for prerecorded media (WCAG 1.2.2).
2. Captions for live media (WCAG 1.2.4, Level AA).
3. Audio description or a media alternative (WCAG 1.2.3 and related criteria).

We break down the live requirement in WCAG live captions: what 1.2.4 requires and how to meet it.

Federal requirements also vary by branch, content type, source and delivery platform, as a federal digitization guideline notes. If you work with an agency, ask which requirements apply to your deliverables.

A note on automated captions

Section508.gov is direct on this point: current automated captioning technology often fails to provide an equivalent experience. It cites transcription errors, lack of speaker identification and missed non-verbal sounds, and says such tools may not meet minimum federal standards.

If you caption with AI, that is a reason to work carefully, not to skip captions. The practical steps:

• Load your vocabulary first. Names, places and jargon are where generic speech-to-text stumbles.
• Give the system clean audio. A good microphone close to the speaker beats any software setting.
• Save the transcript. A transcript lets you review and correct what was said and keep a record of what you offered.
• Identify speakers verbally. Have the host announce who is speaking, since captions alone may not label voices.
• Describe important sounds. If music or a video clip matters, say what it is.
• Keep a request path. Tell attendees how to ask for another accommodation.

Live Caption AI is an AI captioning tool. It is not a certified or human-reviewed service, and it does not make an organization compliant with any law on its own. It can be one part of an effective-communication plan.

Documenting your accessibility work

When buyers or agencies ask about accessibility, the standard document is an Accessibility Conformance Report (ACR). The federal glossary says an ACR explains the extent to which a product conforms to accessibility standards and is commonly completed with a VPAT, though other methods exist. Inside agencies, Section 508 program managers are responsible for internal monitoring and evaluating of digital content.

If you are an agency or contractor, that evaluation step is the one to build a routine around. For background on how teams audit content against these guidelines, see this piece on web accessibility and compliance.

For everyone else, the same habit works at a smaller scale:

• Keep a short log of events you captioned, with date, platform and tool.
• Save transcripts of live sessions.
• Write down how attendees can request other accommodations.
• Review accuracy after a few sessions and add recurring terms to your vocabulary list.

On enforcement, administrative complaints under Section 508 are filed with the federal department or agency alleged to be noncompliant. That process applies to federal programs, which is another reason the rule is framed around agencies.

What this means for your setting

Churches and ministries

Section 508 doesn’t apply to you. Captions still open your services to members who are deaf or hard of hearing, visitors who speak another language, and anyone in a noisy lobby or a crying-room. Worship vocabulary is hard for generic tools: names of books, saints, hymns and places. Live Caption AI offers a Worship & Ministry model and up to 100 Custom Terms you type in before going live.

Event organizers and AV teams

Private events fall outside Section 508 unless you work under a federal contract or host a federal public meeting. Clients still ask for captions, and multilingual audiences are common. Live Caption AI translates into one of 29 languages per session. The speaker picks one source and one target language, and viewers can switch between the original and the translation.

Schools and universities

Public universities often cite both the ADA and Section 508 in their caption standards. If you are in higher education, follow your institution’s policy first. Live Caption AI can supply live captions for classes, talks and meetings, with transcripts saved afterward.

Contractors and vendors to federal agencies

Check your contract language. If your deliverables must meet Section 508, ask your agency contact what that means for live events and which method they accept.

A simple caption setup for live sessions

1. Decide where captions appear. On attendees’ phones, on a screen, or both.
2. Prepare vocabulary. List speaker names, places and technical terms.
3. Start the session. The speaker runs Live Caption AI on a phone or laptop.
4. Share the QR code. Put it on a slide, a program or a sign. Attendees scan it and read along in their browser.
5. Add translation if needed. Choose the target language before the session starts.
6. Export the transcript. Save it as TXT, SRT, JSON or PDF.

No app to install. No account for attendees. No hardware to rent. No stenographer to book.

We also cover specific formats in our posts on live captions for webinars and live event subtitles.

Our perspective

Section 508 sets a useful bar even when it doesn’t legally apply to you. It says live audio needs captions, and it asks for quality, not box-checking. We agree with both.

We built Live Caption AI around a plain idea: the people in the room should be able to read what is being said, on the device they already hold. A QR code does that. Nobody installs anything or creates an account, and you don’t rent hardware.

We are also honest about what the tool is. It is AI captioning, not a certified or human-reviewed service, and we don’t claim it satisfies a law by itself. What we do offer is the groundwork that makes AI captions better: Medical, Worship & Ministry and Finance & Earnings models, up to 100 Custom Terms, exportable transcripts and summaries. Session audio is never stored.

For a church, a school, a small events company or a team that could never afford a stenographer every week, that is how live captions start happening at all.

Ryan

Try it for your next session

Live Caption AI starts with a Free plan that gives you basic on-device captions. The Professional plan is $19.99 a month with unlimited captioning. Business starts from $199 a month. If you need extra translation, in-app credit packs run $6.99 for 30 credits, $11.99 for 60 and $19.99 for 120. See current details on the pricing page.

If you caption in professional settings, read about live captioning for medical, legal and professional settings.

Explore Live Caption AI

FAQ

Does Section 508 apply to my church or nonprofit?

Not as a rule. Section 508 applies only to federal agencies, and the official guidance says it does not cover churches or private event organizers. Other accessibility laws may apply to you, so check with your attorney or accessibility advisor.

Are live captions required under Section 508?

Yes, for federal ICT. Captions are required for all live audio in synchronized media. Federal public meetings must meet applicable Section 508 standards, and agencies have provided live captions at virtual meetings.

What caption format does Section 508 use?

Section 508 uses WCAG 2.0 Level AA as its technical standard. Federal best practice for appearance is a sans serif font, 18-point white text on a translucent black background, and no more than two lines of 45 characters each.

Can AI captions meet Section 508?

Federal guidance warns that automated captioning often has errors, missing speaker identification and missed non-verbal sounds. If you caption with AI, prepare vocabulary, use clean audio and review transcripts. Live Caption AI is not a certified service, and agencies should confirm what they accept.

Can attendees read captions without installing anything?

With Live Caption AI, yes. The speaker runs it on a phone or laptop, and attendees scan a QR code to read live captions on their own phones. No app and no account are needed.

Sources

• IT Accessibility Laws and Policies | Section508.gov
• Do Section 508 Accessibility Standards Apply to My Website? | Section508.gov
• Accessible Meetings | Section508.gov
• Video and Other Synchronized Media | Section508.gov
• Synchronized Media (Web) | Access Board ICT Baseline
• Captions and Transcripts | Section508.gov
• Video and Multimedia Products (1194.24) | Access Board
• Comparison Table of WCAG 2.0 to Original 508 Standards | Access Board
• Definitions for Key Accessibility Features for Digital Audiovisual Content | Federal Agencies Digital Guidelines Initiative
• Glossary of Section 508 Terms | Section508.gov

Recommended

• ADA Title III Captions: What Public Accommodations Must Do
• Fix ADA Captioning Fast: 30 Day Compliance Checklist for U.S. Orgs