Principle of least cost.

69-09-02-33. Principle of least cost. It shall be the duty of utilities, when coordination of facilities is necessary to avoid or mitigate conflicts or interference, to adopt, after a full consideration of all factors, the most practicable method which provides the greatest present and future economy and convenience in rendering the services involved irrespective of whether the selected method applies to electric supply or signal systems or both. General Authority: NDCC 49-02-04 Law Implemented: NDCC 49-02-04, 49-20-02