“Certificate holder” means a person who holds a current certificate of public convenience and necessity which was issued for the operation of a taxicab business by:
1. The Public Service Commission of Nevada before July 1, 1981, and which has not been transferred, revoked or suspended by the Nevada Transportation Authority, the Taxicab Authority or the Public Utilities Commission of Nevada, or by operation of law; or
2. The Taxicab Authority and which has not been transferred, revoked or suspended by the Taxicab Authority or by operation of law.