When Part A is revoked then Part B is automatically deactivated.
However, please remember that revoking Part A certificate of an international railway undertaking means that Part B certificates issued by the other National Safety Authorities to the same railway undertaking will also be automatically deactivated. Due to this fact it is recommended to contact these National Safety Authorities and explain the purpose of the revocation in advance to revocation of Part A certificate in the ERADIS.
In order to have both certificates with the status “Revoked” then please revoke first Part B and then Part A. When ERADIS administrators publish the revocation both Part A & B will be displayed as “Revoked”.