The following ANAB-accredited certification bodies have completed the R2 V3 transition. Additional information can be found in Heads Up 476:

National Standards Authority of Ireland, Inc. 2021/08/02
Orion Registrar, Inc. 2021/05/20
Perry Johnson Registrars, Inc. 2021/07/09
QMI-SAI Canada Limited 2021/05/24