New Mexico Statutes Chapter 63. Railroads and Communications § 63-9-3. Certificate required for operation

A. construction of plant or system within a certificated area which such telephone company already lawfully serves, where such construction is necessary in the ordinary course of business;

B. extension of plant or system to area contiguous to the certificated area of such telephone company, if such contiguous areas are not certificated and are not receiving public utility telephone service from another telephone company; provided that the commission shall be notified, in such manner as it may prescribe by rule, of any such extension into contiguous area; and

C. such construction or extension occurring when a proper application is being made pursuant to Section 4 of this act.