As part of the Procurement Act 2023, all suppliers to the public sector and organisations bidding for work with the public sector are required to register on the CDP. Suppliers will be required to do this as they respond to any opportunities.
Supplier registration can take place from 24th February 2025 onwards.
The Government Commercial Function has released guidance on how to do this. The web page below contains how-to videos and documentation which explain the process:
https://www.gov.uk/government/collections/information-and-guidance-for-suppliers
