W. Va. Code § 31J-1-3
(a) Definitions. Terms used in this section have the following meanings.
"Base station" means a structure or equipment at a fixed location that enables Commission-licensed or authorized wireless communications between user equipment and a communications network. The term does not encompass a tower as defined in this subpart or any equipment associated with a tower.
(D) The term does not include any structure that, at the time the relevant application is filed with the state or local government under this section, does not support or house equipment defined as base stations and transmission equipment.
"Concealment element" means elements of a stealth-designed facility intended to make the facility look like something other than a telecommunications tower. There must be express evidence in the record to demonstrate that the reviewing authority considered in its approval of the original facility for wireless service that a stealth design would look like something other than a facility for wireless service, such as a pine tree, flag pole, or chimney.
"Colocation" means the mounting or installation of transmission equipment on an eligible support structure for the purpose of transmitting and/or receiving radio frequency signals for communications purposes.
"Eligible facilities request" means any request for modification of an existing tower or base station that does not substantially change the physical dimensions of such tower or base station, involving:
(C) Replacement of transmission equipment.
"Eligible support structure" means any tower or base station as defined in this section, provided that it is existing at the time the relevant application is filed with the state or local government under this section.
"Existing" means a constructed tower or base station is existing for purposes of this section if it has been reviewed and approved under the applicable zoning or siting process, or under another state or local regulatory review process, provided that a tower that has not been reviewed and approved because it was not in a zoned area when it was built, but was lawfully constructed, is existing for purposes of this definition.
"Site" means for towers other than towers in the public rights-of-way, the current boundaries of the leased or owned property surrounding the tower and any access or utility easements currently related to the site, and, for other eligible support structures, further restricted to that area in proximity to the structure and to other transmission equipment already deployed on the ground. The current boundaries of a site are the boundaries that existed as of the date that the original support structure or a modification to that structure was last reviewed and approved by a state or local government, if the approval of the modification occurred prior to the adoption of this Act.
"Substantial change" means a modification substantially changes the physical dimensions of an eligible support structure if it meets any of the following criteria:
(A) For towers, it increases the height of the tower by more than 10% or by the height of one additional antenna array with separation from the nearest existing antenna not to exceed 20 feet, whichever is greater, and where separation from the nearest existing antenna means the distance from the top of the highest existing antenna on the tower to the bottom of the proposed new antenna to be deployed above it; for other eligible support structures, it increases the height of the structure by more than 10% or more than ten feet, whichever is greater;
(vi) It does not comply with conditions associated with the siting approval of the construction or modification of the eligible support structure or base station equipment: Provided however, That this limitation does not apply to any modification that is non-compliant only in a manner that would not exceed the thresholds identified in 47 C.F.R. § 1.40001(b)(7)(i) through (iv).
"Transmission equipment" means equipment that facilitates transmission for any Commission-licensed or authorized wireless communication service, including, but not limited to, radio transceivers, antennas, coaxial or fiber-optic cable, and regular and backup power supply. The term includes equipment associated with wireless communications services including, but not limited to, private, broadcast, and public safety services, as well as unlicensed wireless services and fixed wireless services such as microwave backhaul.
"Tower" means any structure built for the sole or primary purpose of supporting any Commission-licensed or authorized antennas and their associated facilities, including structures that are constructed for wireless communications services including, but not limited to, private, broadcast, and public safety services, as well as unlicensed wireless services and fixed wireless services such as microwave backhaul, and the associated site.
(b) Review of applications. A state or local government may not deny and shall approve an application for a modification of an existing wireless service facility if:
(2) The requested modification involves:
(f) Tolling of the timeframe for review. The 60-day period begins to run when the application is filed and may be tolled only by mutual agreement or in cases where the reviewing state or local government determines that the application is incomplete. The timeframe for review is not tolled by a moratorium on the review of applications.