Auto-lead Data Format (ADF) is an open XML-based standard specifically for communicating consumer purchase requests to automotive dealerships. Thirteen leading automotive-related Internet companies developed the ADF standard, and now many vendors of Customer Retention Management systems serving the automotive industry support ADF. ==Example XML File== The example found in the Official ADF Specifications (PDF) does not pass XML validation and files based on this example may be rejected by ADF lead software. Below is an example that passes XML validation and has been accepted and parsed by ADF lead software: