Updated data protection law description
Updated data protection law description

Original content: 'Notify complies with the Data Protection Act.'
This should be updated to take account of GDPR – for example, 'Notify complies with data protection law' (which covers both DPA and GDPR).
This change is consistent with the Service Manual.
alphagov/notifications-admin,alphagov/notifications-admin,alphagov/notifications-admin,alphagov/notifications-admin