A/344, “ATSC 3.0 Interactive Content″Approved: 11 June 2025

This document describes the interactive content environment provided by an ATSC 3.0 receiver. This environment is comprised of a standard W3C User Agent with known characteristics, a WebSocket interface for obtaining information from the receiver and controlling various receiver functionality, and an HTTP interface for accessing files delivered over broadcast. This document also specifies the life cycle of the interactive content when delivered over broadband or broadcast or both.

Download current version: A/344:2025-06, “ATSC 3.0 Interactive Content”, 11 June 2025.

A Candidate Standard revision of A/344 is available. See the Candidate Standards page.

Previous Versions

There are multiple versions of this document. Please be sure to download the desired version. For amendments, the text includes a list of changes, the rationale for the changes, and compatibility considerations.

Download A/344:2019, “ATSC 3.0 Interactive Content”, approved 2 May 2019. This version of the Standard is normatively referenced in A/300:2019.

Download A/344:2019 Amendment No. 1, “Persistent IDs”, approved 29 July 2019.

Download A/344:2019 Amendment No. 2, “JSON RPC Cancel Request API Addition”, approved 16 December 2019.

Download A/344:2019 Amendment No. 3, “Redistribution Use Case”, approved 18 December 2019.

Download A/344:2019 Amendment No. 4, “RMP State”, approved 19 December 2019.

Download A/344:2019 Amendment No. 5, “Capabilities”, approved 23 December 2019.

Download A/344:2019 Amendment No. 6, “Remove JavaScript Sample Code”, approved 24 December 2019.

Download A/344:2019 Amendment No. 7, “CacheRequest API”, approved 25 December 2019.

Download A/344:2019 Amendment No. 8, “Signaling Data”, approved 7 February 2020.

Download A/344:2019 Amendment No. 9, “Service Guide”, approved 31 January 2020.

Download A/344:2019 Amendment No. 10, “DRM Error Codes”, approved 3 February 2020.

Download A/344:2020, “ATSC 3.0 Interactive Environment”, 7 February 2020. This document is a rollup of Amendments No. 1 through 10 to A/344:2019, plus editorial cleanup.

Download A/344:2020 Corrigendum No. 1, approved 29 April 2020.

Download A/344:2020, “ATSC 3.0 Interactive Environment, with Corrigendum No. 1”. This document has Corrigendum No. 1 integrated into the standard. This version of the Standard is normatively referenced in A/300:2020.

Download A/344:2020 Amendment No. 1, “Launch App”, approved 12 October 2020.

Download A/344:2021, “ATSC 3.0 Interactive Content”, and accompanying schema, approved 23 March 2021. This version of the Standard is normatively referenced in A/300:2021.

Download A/344:2022-03, “ATSC 3.0 Interactive Content”, and accompanying schema, 31 March 2022. This version of the Standard is normatively referenced in A/300:2022-04.

Download A/344:2023-02, “ATSC 3.0 Interactive Content”, approved 17 February 2023.

Download A/344:2023-03, “ATSC 3.0 Interactive Content”, 28 March 2023. This version of the Standard is normatively referenced in A/300:2023-03.

Download A/344:2023-03 Amendment No. 1, “RF Signal Change API”, approved 19 May 2023.

Download A/344:2023-05, “ATSC 3.0 Interactive Content”, 19 May 2023.

Download A/344:2024-02, “ATSC 3.0 Interactive Content”, approved 13 February 2024.

Download: A/344:2024-04, “ATSC 3.0 Interactive Content”, 3 April 2024. This version of the Standard is normatively referenced in A/300:2024-04.

Download: A/344:2025-02, “ATSC 3.0 Interactive Content”, approved 26 February 2025.

Download: A/344:2025-02, Corrigendum No. 1″, approved 11 June 2025.