August 2026 Emissions Model
Alignment to version 1.3 of the Global Media Sustainability Framework
Effective August 1st, the Scope3 emissions model will be aligned to the latest version (v1.3) of the Global Media Sustainability Framework (GMSF).
Emissions for impressions dated on or after August 1st 2026 will be aligned to GMSF v1.3. For impressions between October 1st 2025 and July 31st 2026, GMSF v1.2 applies.
Key Methodological changes
As part of this alignment, we have made the following changes:
| Change | Impacted category keys | Expected Materiality |
|---|---|---|
| (Linear TV specific) Signal transmission defaults now reflect the GMSF v1.3 guidance. |
| Low |
| (Linear TV specific) Creative transcoding emissions for IPTV have been broken out into a new bespoke sub-category. For broadcast delivery methods, creative transcoding remain accounted for in creative delivery data transfers emissions. |
| Very Low |
| (CTV-BVOD specific) Creative storage emissions now reflect the GMSF v1.3 methodology, incorporating both raw asset and work-in-progress storage iterations in place of the previous single-iteration fallback. | techManipulation.creativeStorage | Very Low |
| (Classic OOH specific) All OOH emissions defaults now reflect the GMSF v1.3 guidance. |
| Low |
Our methodology documentation has been updated to reflect these changes.
Expected impact
Emissions' totals may shift as a result of the updates above. For any question or concern, please contact your Customer Success representative or Scope3 Support.