[transition] CR Request for IMSC Text Profile 1.3 - ttml-imsc1.3

This is a transition request for a Candidate Recommendation
CR Request for IMSC Text Profile 1.3 - ttml-imsc1.3
from https://github.com/w3c/transitions/issues/757

# Document title, URLs, estimated publication date
IMSC Text Profile 1.3
https://www.w3.org/TR/ttml-imsc1.3/
the earliest publication slot after approval - tentatively aiming 2025-12-09

# Abstract
https://www.w3.org/TR/ttml-imsc1.3/#abstract

# Status
https://www.w3.org/TR/ttml-imsc1.3/#sotd

# Link to group's decision to request transition
https://www.w3.org/2025/11/11-tt-minutes.html#6e3b

# Changes
https://www.w3.org/TR/ttml-imsc1.3/#substantive-changes-summary
changes from ttml-imsc1.2

# Requirements satisfied
No requirement change from 1.2, already satisfied.

# Dependencies met (or not)
no normative change expected
one informative section is under discussion via liaison https://github.com/w3c/imsc/pull/614

# Wide Review
- a11y: https://github.com/w3c/a11y-request/issues/116
  - one point remains open https://github.com/w3c/a11y-tracking/issues/252#issuecomment-3298886646
  - [blocker] contacting a11y group whether filed issue is blocker to CRS or not https://github.com/w3c/a11y-request/issues/116#issuecomment-3605366138
- TAG: https://github.com/w3ctag/design-reviews/issues/1122
- i18n: https://github.com/w3c/i18n-request/issues/268
- privacy: https://github.com/w3cping/privacy-request/issues/167
- security: https://github.com/w3c/security-request/issues/95

(also, [WG review tracker exists](https://github.com/w3c/imsc/issues/608))

# Issues addressed
https://github.com/w3c/imsc/issues

# Formal Objections
no

# Implementation
under preparation at https://www.w3.org/wiki/TimedText/IMSC1_3_Implementation_Report

# Patent disclosures
https://www.w3.org/groups/wg/timed-text/ipr/

NOTE: For more information, see [Organize a Technical Report Transition](https://www.w3.org/guide/transitions/?profile=CR&cr=new).


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Received on Wednesday, 3 December 2025 07:31:35 UTC