English
From 10 to no more than 12 months after certification, recertification is required in order to continue the validity of the original certificate.
In case of an assumed rise up the ladder, a company may request a new ladder audit from an LCA. Such a request may not be made sooner than six months after receiving the certificate.
Additional guidelines apply for the TenneT pilot. You can find the guidelines for the TenneT pilot here.