The Article 29 Working Party (Art. 29 WP) was the independent European working party that dealt with issues relating to protecting privacy and personal data until 25 May 2018 (entry into application of the GDPR), when the EDPB replaced it. During its first plenary meeting, the EDPB endorsed the GDPR-related Article 29 Working Party Guidelines. Read Opinion 05/2014 on Anonymisation Techniques.