The Article 29 Working Party (WP29) has published Guidelines on Administrative Fines. While the GDPR gives national supervisory authorities discretion in deciding which corrective measure to impose and if a fine, the level of that fine, the guidelines emphasise the need for supervisory authorities across the EU to work together to achieve consistent enforcement of the data protection rules. The WP29 recommends the creation of a sub-group attached to the European Data Protection Board to support this ongoing activity.