A. Future uses
 

(1) Except as specifically provided in Subsection A(1)(a), (b), or (c) hereunder, no material change shall be made in the use of land, no structure shall be erected or otherwise established, and no tree shall be planted in any zone hereby created unless a permit therefor shall have been applied for and granted. Each application for a permit shall indicate the purpose for which the permit is desired, with sufficient particularity to permit it to be determined whether the resulting use, structure, or tree would conform to the regulations herein prescribed. If any determination is in the affirmative, the permit shall be granted. No permit for a use inconsistent with the provisions of this article shall be granted unless a variance has been approved in accordance with this § 155-149D.

(a) In the area lying within the limits of the horizontal zone and conical zone, no permit shall be required for any tree or structure less than seventy-five feet to vertical height above the ground, except when, because of terrain, land contour, or topographic features, such tree or structure would extend above the height limits prescribed for such zones.
(b) In areas lying within the limits of the approach zones, but at a horizontal distance of not less than 4,200 feet from each end of the runway, no permit shall be required for any tree or structure less than 75 feet of vertical height above the ground, except when, because of terrain, land contour or topographic features, such tree or structure would extend above the height limit prescribed for such approach zones.
(c) In the areas lying within the limits of the transition zones beyond the perimeter of the horizontal zones, no permit shall be required for any tree or structure less than seventy-five feet of vertical height above the ground, except when such tree or structure, because of terrain, land contour, or topographic feature, would extend above the height limit prescribed for such transition zones.

(2) Nothing contained in any of the foregoing exceptions shall be construed as permitting or intending to permit any construction, or alteration of any structure, or growth of any tree in excess of any of the height limits established by this article, except that no permit is required to make maintenance repairs to or to replace parts of existing structures which do not enlarge or increase the height of an existing structure.
 

B. Existing uses. Before any nonconforming structure may be replaced, substantially altered or rebuilt or tree allowed to grow higher or replanted, a permit must be secured from the municipality authorizing the replacement or change. No permit shall be granted that would allow the establishment or creation of an obstruction or permit a nonconforming use, structure, or tree to become a greater hazard to air navigation than it was on the effective date of this article or any amendments thereto or than it is when the application for a permit is made.

C. Nonconforming uses abandoned or destroyed. Whenever Tobyhanna Township determines that a nonconforming tree or structure has been abandoned or more than 80 percent torn down, physically deteriorated, or decayed, no permit shall be granted that would allow such structure or tree to exceed the applicable height limit of the Code of the Township of Tobyhanna or otherwise deviate from this article.

D. Variance.

(1) Any person desiring to erect any structure or increase the height of any structure or permit the growth of any object of natural growth or otherwise use his property in violation of airport zoning regulations may apply to the Board of Adjustment for a variance from the zoning regulations in question. A variance shall only be granted after the requirements of § 155-150: Enforcement; notice are satisfied. A variance may be allowed where a literal application or enforcement of the regulations would result in practical difficulty or unnecessary hardship and the relief granted would not be contrary to the public interest but would do substantial justice and would be in accordance with the spirit of the regulations and this article. Any variance may be granted subject to any reasonable conditions that the Board of Adjusters may deem necessary to effectuate the purposes of this article.
(2) The application for variance shall be accompanied by a determination from the Federal Aviation Administration as to the effect of the proposal on the operation of air navigation facilities and the safe, efficient use of navigable airspace. Additionally, no application for variance to the requirements of this article may be considered by the Board of Adjustment unless a copy of the application has been furnished to the Pocono Mountains Municipal Airport Authority and does not respond to the application within 30 days after receipt, the Board of Adjustment may act without such input to grant or deny said application.
 

E. Hazard marking and lighting. In granting any permit or variance under this section, the Board shall, if it deems the action advisable to effectuate the purpose of this article and reasonable under the circumstances, so condition the permit or variance as to require the owner of the structure or object of natural growth in question to permit the municipality, at its own expense, or require the person or persons requesting the permit or variance, to install, operate and maintain thereon such markers and lights as may be required by guidelines or regulations adopted by the FAA.