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. DC DMV offers a commercial driver license (CDL) to professional drivers who reside in the District. The DC DMV CDL is a credential that complies with federal identification guidelines and can be used as a federal-level ID. It is valid for 8 years and can be renewed.