These Regulations implement Regulation (EU) 2018/644 of the European Parliament and of the Council of 18 April 2018 on cross-border parcel delivery services to the extent that it has not been implemented by existing legislation and procedures. The EU parcel services regulation sets out the minimum harmonisation requirements for cross-border parcel delivery service providers.
Link: The Cross-border Parcel Delivery Services (EU Information Requirements) Regulations 2019
Source: Legislation .gov.uk