Unless the context indicates that a different meaning is intended, the following words and phrases shall, for the purpose of this chapter, have the meanings respectively ascribed to them in this section:
The certificate of public convenience and necessity granted by the Taxicab Commission to persons in the business of operating taxicabs, as provided in this chapter.
Any person driving a taxicab.
Any person having control of the operation or maintenance of a taxicab or of the collection of revenue derived from its operation.
Any motor vehicle used for the transportation for hire or reward of passengers and baggage upon the streets of the City, other than busses being operated under franchise and over fixed routes between fixed termini.
A taxicab driver's permit granted to a driver, as provided in this chapter.