All merchants that store, process, or transmit cardholder data must be PCI compliant. Each merchant that is categorized as a Level 1, Level 2 or Level 3 merchant is required to report its compliance status directly to its acquiring bank. Determining merchant level often raises questions for many companies. To accurately determine merchant levels, MasterCard recommends merchants first contacting their acquiring bank. With assistance from their acquiring bank, merchants can then complete the following steps:

How to Determine Merchant Level and Validation Requirements
SDP Merchant Levels
Category
Criteria
Requirements
Compliance Date
Level 1
Level 2
Level 3
Level 4