1. (a) As used in this chapter, "substantial modification of a wireless support structure" means the mounting of a wireless facility on a wireless support structure in a manner that:

   1. (1) increases the height of the wireless support structure by the greater of:

      1. (A) ten percent (10%) of the original height of the wireless support structure; or
      2. (B) twenty (20) feet;

   2. (2) adds an appurtenance to the wireless support structure that protrudes horizontally from the wireless support structure more than the greater of:

      1. (A) twenty (20) feet; or
      2. (B) the width of the wireless support structure at the location of the appurtenance; or
   3. (3) increases the square footage of the equipment compound in which the wireless facility is located by more than two thousand five hundred (2,500) square feet.

2. (b) The term does not include the following:

   1. (1) Increasing the height of a wireless support structure to avoid interfering with an existing antenna.

   2. (2) Increasing the diameter or area of a wireless support structure to:

      1. (A) shelter an antenna from inclement weather; or
      2. (B) connect an antenna to the wireless support structure by cable.

As added by P.L.145-2015, SEC.3.