What are the deadlines for complying with PCI DSS?
Compliance is mandated by the payment card brands. For most merchants, the deadlines for validating compliance with the PCI DSS have already passed. You should check with your acquirer or merchant bank to check if any specific deadlines apply to you, based on merchant transaction volume (level) as determined by the card payment brands. All entities that transmit, process or store payment card data must be compliant with PCI DSS.