The OpenChain Telco Work Group is completing their work on a reference Telco SBOM specification.
This specification outlines certain requirements related to how an entity creates, delivers, and consumes Software Bill of Materials (SBOM), so that entities that produce and/or consume SBOMs that conform to this specification can ensure repeatability and streamlining of tools and processes for generating and consuming SBOMs.
Check out the current draft here:
Check out the Japanese translation here:
(Thank you Masahiro Daikoku from KDDI!)