***** PCI DSS and card association rules prohibit storage of track data under any circumstances. If you or your POS system pass, transmit, store or receive full cardholders data, then the POS software must be PA DSS(Payment Application Data Security Standard) compliant or you (merchant) must validate PCI DSS compliance (see 1(b) below and questions 3 and 4 must be completed). If you use a payment gateway, they must be PCI DSS compliant. *****