Section 39: (1) A railway licence shall specify whether the company is to operate the railway as a common carrier or as a private carrier.(2) A company which operates as a private carrier is exempt from compliance with sections 64 to 72 and 75 to 84.(3) A company which intends to operate wholly or in part on the railway of another company or on a railway in which ownership is vested in the Authority must include in its application for a railway licence, (a) a list showing those portions of the railway lines which belong to the other company or which are vested in the Authority, and(b) a copy of a written agreement authorising the railway company to use those portions of the railway.