Final answer:
A driver who commits two serious traffic violations within a three-year period while driving a CMV will lose his or her CDL for a minimum of 60 days.
Step-by-step explanation:
A driver who commits two serious traffic violations within a three-year period while driving a CMV (Commercial Motor Vehicle) will lose his or her CDL (Commercial Driver's License) for a minimum of 60 days. However, if the violations involve certain hazardous materials or offenses like DUI (Driving Under the Influence), the suspension period can be longer.