Passbook scheme credit validity: credits expire after one year or by scheme end; authorities must finalise claims. Credits under the Pass Book Scheme are valid for one year from the date of grant or until 31 March 1999, whichever is earlier. Designated Authorities and Commissioners of Customs are directed to finalise claims and grant admissible credits without delay and to report pending Pass Books where credits remain unallowed, in accordance with the DGFT policy circular.