Clearance from Committee on Disputes required before inter departmental litigation; submit prescribed documents promptly to avoid dismissal. Clearance from the Committee on Disputes must be obtained before pursuing inter departmental litigation; Commissionerates should send a self contained proposal to the Board with twenty copies of the brief in the prescribed format, four copies of the order in appeal, four copies of the order in original, a copy of the memorandum of appeal filed or to be filed, and other relevant documents. These instructions are mandatory and related assessee requests should be processed in a time bound manner to achieve disposal within one month.