A CEN Workshop Agreement (commonly abbreviated CWA) is a reference document from the European Committee for Standardization (CEN). It is, by definition, not an official standard from the member organizations.
In the field of electronic signatures, several CWAs exist. In July 2003[1]) the European Commission granted the following three CWAs status as generally recognized technical standards, presumed to be in accordance with the European Directive on Electronic Signatures (1999/93/EC):
These CWA were updated after they were cited by EC: the above linked versions are newer.
Other CWA deals with e-signature; among them: