Whenever the Department grants its permission for the construction, installation, location, or placement of a landfill gas pipeline within any highway right-of-way, notice shall be provided by the Department to every county through which such pipeline or any portion thereof will pass. For the purposes of this section, “landfill gas pipeline” means those facilities exempted from the definition of public utility in subdivisions (b)(6), (7), and (8) of § 56-265.1.