Pi is the sixteenth letter of the Greek alphabet, representing sound. In the system of Greek numerals it has a value of 80. It was derived from the Phoenician letter Pe (). Letters that arose from pi include Cyrillic Pe, Coptic pi, and Gothic pairthra ().
The 3 types of commercial drivers are Class A, B, and C licenses. 1  Class A Commercial Driverâs License â Combination Vehicle permit holder can drive all commercial vehicles or a combination of commercial vehicles with a gross weight of 26,001 lbs. or more.
Commercial Driver License (CDL) A commercial driver license (CDL) is a type of driver license an individual can apply for to transport interstate or intrastate commerce. With the exception of motorcycles and mopeds, individuals who hold a valid CDL may drive all vehicles in the class for which that license is issued, including their personal vehicle.