Access tokens are used to grant access by a media client to media assets, once that client has been authenticated. Today every CDN has a different mechanism for structuring, naming, generating and revoking tokens. This causes problems with multi-CDN deployments, especially with load-balancing/content steering solutions. There is benefit across the OTT industry if a common and consistent token format can be developed and broadly supported. DASH IF began work on a token access format, but it was targeted at DASH clients only and has not received much deployment. We could start with that format, improve it and make it HLS compatible.