CPR PD 57AD provides for disclosure in the Business and Property Courts of England and Wales and the Business and Property Courts in Birmingham, Bristol, Cardiff, Leeds, Liverpool, Manchester and Newcastle. It is substantially in the form of, and replaces, the pilot CPR PD 51U. It has been in force since 1 October 2022 in respect of both existing and new proceedings. It does not apply to certain types of cases, including those within a fixed costs regime or proceeding under CPR PD Part 8,