Observed Signal · Jul 22, 2026 · Technical Release · Source: https://iabtechlab.com/feed/ · Impact: 4/5 · Sentiment: Positive
IAB Tech Lab releases CTV Ad Format Signaling
The IAB Tech Lab published a technical standard called CTV Ad Format Signaling to standardize how emergent CTV ad formats (Pause Ads, Menu/Home Screen, Overlay, Screensaver, In-Scene, Squeezebacks) are signaled in real-time bidding. The proposal extends existing AdCOM enumerations (plcmt, pos, playbackmethod), updates VAST NonLinearAds to carry MediaFiles, and uses the OpenRTB Native object for menu/home-screen placements. The change enables publishers to signal available placements and buyers (via DSPs) to bid with clarity, and requires SSPs, exchanges, DSPs, SSAI/CSAI services, and measurement partners to support the new enumerations and VAST behavior for programmatic buying and reporting.
A standards release from IAB Tech Lab defines interoperable signals for new CTV ad formats and updates VAST/AdCOM/OpenRTB handling, affecting programmatic buying, creative delivery, and measurement across DSPs, SSPs, SSAI, and measurement partners.
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Key Takeaways & Evidence Grounding
- IAB Tech Lab published the CTV Ad Format Signaling initiative to standardize emergent CTV ad formats.
- The initiative covers six ad formats: Pause Ads, Menu/Home Screen Ads, Overlay Ads, Screensaver Ads, In Scene, and Squeezebacks.
- The proposal expands AdCOM enumerations for plcmt, pos, and playbackmethod and updates VAST NonLinearAds to carry MediaFiles.
- Menu/Home-screen ads are transacted via the OpenRTB Native object rather than as a single finished creative.
- The standard requires SSPs, exchanges, DSPs, SSAI/CSAI, and measurement partners to implement the new enumerations and VAST changes.
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Related Market Signals & Shifts
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CTV Ad Formats Standardized: A New Era Begins
IAB Tech Lab's Ad Format Hero initiative standardized CTV ad formats after a year-long industry effort. More than 40 companies submitted well over 100 format examples; an Ad Format Hero Task Force grouped submissions, surveyed buyers and sellers, and narrowed the field from eight candidate formats to six final formats published as the CTV Ad Portfolio. Two candidate formats were consolidated: Immersive/Extensible Ads was treated as a feature (largely supported by SIMID) rather than a standalone format, and Ad Squeeze Back was considered an existing in-stream pod slot. The CTV Ad Portfolio and an updated CTV Programmatic Guide were published on December 11, 2025 and opened for public comment through January 31, 2026. Further work is planned to update OpenRTB, VAST, AdCOM, and SIMID signaling to enable full programmatic trading.
IAB Tech Lab Updates CTV Video Ad Guidelines
IAB Tech Lab published an updated draft of the Ad Format Guidelines for Digital Video and CTV and opened a second public comment period running until July 16, 2026. The revision modernizes video-file technical specifications and creative-asset guidance to reflect current streaming workflows — including server-side ad insertion, adaptive bitrate streaming, platform-managed transcoding and mezzanine assets. The draft also standardizes emerging CTV formats (Pause, Menu, Squeezeback, Overlay, In-Scene and Screensaver Ads) and clarifies roles and responsibilities across advertisers, platforms, players and publishers. The guidelines are hosted on GitHub and the Lab invites feedback from the broader industry before finalization.
Interactive CTV Ads: From Concept to Game-Changer
Interactive CTV advertising moved from concept to practice in 2025 as the industry shifts from demos to scalable deployment. The piece traces roots from NBCUniversal and TiVo experiments in 2007 to BrightLine’s broader work with NBCU and Hulu, noting growing marketer comfort with CTV’s capabilities beyond linear TV. Pause ads are now the dominant interactive format, aided by measurement advances and IAB Tech Lab standards launched this year. Programmatic pause ads have been launched by Wunderkind, Kargo, Magnite, PubMatic, and TripleLift; Fubo rolled out programmatic pause ads in May, with NBCUniversal planning to follow in 2026. Magna and DirecTV’s survey shows high pause engagement (91% pause often or sometimes; 92% pause longer than 30 seconds; 35% don’t step away after pausing). The article also discusses potential future formats (home screen/menu ads) and emphasizes ongoing standardization efforts, signaling, and cross-platform compatibility via IAB Tech Lab.
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