Ind. Code § 6-7-1-18
Every distributor, upon the receipt of cigarettes taxed under this chapter, shall cause each individual package to have the requisite denomination and amount of stamps firmly affixed. Every retailer, upon receipt of cigarettes not having the proper amount of stamps firmly affixed, to each individual package, or stamped by a meter stamping machine, by a distributor shall stamp or firmly affix stamps immediately on each individual package. Provided, however, that any distributor engaged in interstate business, shall be permitted to set aside such part of his stock as may be necessary for the conduct of such interstate business without affixing the stamps required by this chapter. Every distributor, at the time of shipping or delivering any cigarettes, shall make a duplicate invoice, showing complete details of each transaction, and shall retain the duplicate subject to the inspection by the department or its agent. Every distributor shall include with each shipment or delivery of cigarettes an invoice showing complete details of the transactions. Every retailer shall retain for not less than two (2) weeks the invoice included with each shipment or delivery of cigarettes subject to inspection by the department or its agent. A retailer may request a duplicate invoice from a distributor.
IC 6-7-1-18