https://credreg.net/ctdl/termhistory/costType/OptionalCharges/turtle/c62cd935-b6a7-475b-b3f7-5a5f7e6080a1
type: ChangeSet
subject of change: OptionalCharges
created date: 2026
created date: -06
created date: -26
change reason: Clarification of term.
subject webpage: https://github.com/CredentialEngine/vocabularies/issues/593
removal: Statement
  subject: OptionalCharges
  predicate: definition
  object: Cost for additional fees, other services, equipment, or facilities.
addition: Statement
  subject: OptionalCharges
  predicate: definition
  object: Cost for additional fees, other services, equipment, or facilities that are not required.

https://credreg.net/ctdl/termhistory/costType/OptionalCharges/turtle/ba94f0f9-534a-4f03-b726-446834a4c67e
type: ChangeSet
subject of change: OptionalCharges
created date: 2026
created date: -06
created date: -26
change reason: Stabilization of term.
subject webpage: https://github.com/CredentialEngine/vocabularies/issues/398
removal: Statement
  subject: OptionalCharges
  predicate: term status
  object: unstable
addition: Statement
  subject: OptionalCharges
  predicate: term status
  object: stable