This SAE Recommended Practice is intended to establish a procedure to certify the low mu/winter driving skill levels of professional drivers. This certification can be used by the individual driver to qualify their skills when seeking employment or other professional activity. These certification levels may also be used by test facilities or other organizations when seeking test or professional drivers of various skills.

This document provides directions for obtaining certification through Probitas Authentication

2x2x, and the low mu/winter driving skill examination requirements.

This document is a supplement to SAE J3300, providing information specific to the low mu/winter driving skill certification and clarifying the application of the rules set forth in J3300 to the low mu/winter driving certification. While the references, definitions, rules, and guidelines presented in SAE J3300 Sections 1 through 5 apply to the low mu/winter driving certification, they are not repeated in this document.