Observed Signal · Jul 28, 2026 · Technical Release · Source: Digiday · Impact: 4/5 · Sentiment: Positive
IAB releases Redefining Media Types (RMT) standard
The Interactive Advertising Bureau (IAB) published its Redefining Media Types (RMT) Standard framework to clarify and standardize taxonomy for digital video product types and associated advertising formats. The framework categorizes video formats including CTV, video podcasting and retail video, and aims to reduce ambiguity that can hurt planning, spend and measurement. IAB argues the standard accounts for consumer experience as well as distribution technology and business models. The framework is in a public commentary period through August 7, 2026. Jamie Finstein, IAB’s VP of media center, discussed the need for common language on a Digiday Podcast episode.
An IAB taxonomy standard can materially reduce ambiguity in video media definitions (CTV, podcasts, FAST), affecting planning, spend, measurement and programmatic trading across the industry; public commentary window also influences adoption.
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Key Takeaways & Evidence Grounding
- The Interactive Advertising Bureau (IAB) released the Redefining Media Types (RMT) Standard framework in July 2026.
- RMT uses a taxonomy approach to categorize digital video product types and their associated advertising formats, including CTV, video podcasting and retail video.
- IAB says ambiguity in definitions (e.g., whether watching Netflix on an iPad counts as CTV) can cause problems for planning, spend and measurement.
- Jamie Finstein, IAB’s vp of media center, discussed the framework on a Digiday Podcast episode.
- The framework was opened for public commentary until August 7, 2026.
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Ontology Mapping & Concepts
Related Market Signals & Shifts
Recent verified developments and strategic activity across this market segment.
IAB Launches Redefining Media Types for Digital Video
The IAB announced the Redefining Media Types (RMT) Standard to create a common taxonomy for the fast-evolving digital video marketplace. Developed with technical specs from the IAB Tech Lab, the two-layer framework separates consumer-facing "media type categories" (how viewers engage with content) from "operational attributes" (data signals, device types, addressability and measurement). The RMT working group — which includes measurement experts, streaming product leads, chief investment officers from major holding companies and Media Rating Council members — began meeting in January. RMT is open for public comment until August 7, 2026, with a finalized version expected later in 2026. The IAB says the standard aims to reduce fragmentation, improve interoperability and provide clearer inputs for agentic AI in media buying if widely adopted.
IAB standard gives streaming ads new quality levers
This Future of TV Briefing (Digiday+, July 22, 2026) discusses how the IAB’s Redefining Media Types Standard could give the streaming ad industry mechanisms to improve ad quality. The piece highlights ongoing industry tensions and measurement shifts — mentioning a Paramount–WBD pause, a Netflix–YouTube tug-of-war, and Nielsen–VideoAmp’s exit — and positions the IAB standard as a potential way to address advertisers' calls for better quality controls in CTV/streaming environments. The briefing is part of Digiday's Future of TV newsletter for Digiday+ members.
Broadcasters and IAB Advance Streaming and Video Standards
This Week in Review covers talks between the BBC and Channel 4 about a possible streaming tie-up, MFE-MediaForEurope’s plan to launch a unified streaming platform using Mediaset front-end and ProSiebenSat.1 technology, and IAB Tech Lab’s public consultation on the Redefining Media Types (RMT) Standard to standardise digital video classifications. The roundup also reports the formation of a European Media Marketplace by telcos, retailers and ad tech firms, analysis from 51Degrees showing ~4.92% of inventory labelled as CTV is misclassified, partnerships and M&A activity across European broadcasters and ad tech, and other publisher- and ad-tech-related developments.
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