Guidelines 01/2018 on certification and identifying certification criteria in accordance with Articles 42 and 43 of the GDPR
Section 6.3 Lifetime of certification criteria
75. Even though certification criteria must be reliable over time they should not be carved in stone. They shall be subject to revision for instance where:
the legal framework is amended;
terms and provisions are interpreted by judgments of the European Court of Justice; or
the technical state of the art has evolved.