Mandatory Unique Client Code and PAN verification required for commodity derivatives trading ensuring client identity verification and e PAN acceptance. Members trading on commodity derivatives segments must use Unique Client Code for all clients and may not execute trades without uploading UCC details. Members must collect and verify PAN copies for existing and new clients; for e PAN they must verify authenticity on the Income Tax Department website and retain a soft copy. Exchanges must ensure upload of PAN or e PAN as part of the UCC, verify documents against the unique code and retain copies.