(i) Bills in respect of exports by sea or air which fall short of the value declared on GR forms on account of trade discount may be accepted for negotiation or collection by authorised dealers only if the discount has been declared by exporter on relative GR form at the time of shipment and accepted by Customs.

(ii) In case of exports by post parcel against declaration on PP forms, post offices will not undertake scrutiny of trade discount deductions, if any, declared on the forms. Authorised dealers may accept deductions towards trade discount in such cases, provided the discount declared is in conformity with the normal level of discount usually offered in the particular line of export trade.