What number should be used to identify a driver on a Federal Drug Testing Custody and Control Form (CCF) or the Alcohol Testing Form (ATF)?

Collectors and alcohol technicians can only use the driver�s commercial driver�s license (CDL) number on the CCF and ATF. Testing facilities may no longer use a driver�s social security number (SSN) or employee identification number (EIN). FMCSA is requiring that the CDL number be used instead of the SSN or EIN so that the number is associated with positive drug or alcohol test results that are reported to the Drug and Alcohol Clearinghouse.