Their days are numbered. The Private Parking (Code of Practice) Act 2019 has been enacted (i.e., passed by Parliament and received Royal Assent). However, its provisions are not yet in force.
This is why the BPA and IPC have joined forces to publish the new PPSCoP, which they claim is based on the forthcoming legislation. They are attempting to give the impression of being sufficiently regulated to justify these changes, thereby misleading both the government and the public. In reality, the PPSCoP bears little resemblance to what will be implemented once the Act comes into full force. When the truly independent appeals service is established through legislation, their role as protectors of their paymasters' interests will come to an end.