The following words, terms and phrases, when used in this article, shall have the meanings ascribed to them in this section, except where the context clearly indicates a different meaning:

Approach-departure surface means the symmetrical surface about the Robins Air Force Base runway centerline extended, begins as in inclined plane (glide angle) 200 feet beyond each end of the primary surface to the centerline elevation of the runway end, and extends for 50,000 feet. The slope of the approach-departure clearance surface is 50:1 (one foot change in elevation for each 50 feet in distance from the starting point) along the extended runway (glide angle) centerline until it reaches an elevation of 500 feet above the established airfield elevation. It then continues horizontally at this elevation to a point at 50,000 feet from the start of the glide angle. The width of this surface at the runway end is 2,000 feet. It then flares uniformly, with an end width of 16,000 feet at a distance 50,000 feet from both starting points.

Conical surface means the inclined surface extending outward and upward from the outer periphery of the inner horizontal surface for a horizontal distance of 7,000 feet. The slope of the conical surface is 20:1 (one foot change in elevation for each 20 feet in distance from the starting point) with an inner elevation of 150 feet above the established airfield elevation and an outer elevation of 500 feet above the established airfield elevation.

Clear zone surface means the surface limits of the obstruction clearance requirements in the vicinity contiguous to the end of the primary surface. The length and width for a single runway of a clear zone surface is 3,000 feet by 3,000 feet.

Established airfield elevation means the altitude, measured in feet above mean sea level (MSL), of the Robins Air Force Base main runway surface. This elevation is hereby declared to be 295 feet MSL.

Height means the true highest altitude of a structure or natural feature, including trees, protruding rocks or natural ground surface, as measured in feet above mean sea level.

Inner horizontal surface means the surface plane, oval in shape, that extends 7,500 feet from Robins Air Force Base airfield runway centerline at a height of 150 feet above the established airfield elevation.

Obstruction means any structure or natural feature, including trees, protruding rocks or natural ground surface, which exceeds the height limitation of as defined by the primary surface, clear zone surface, approach-departure clearance surfaces, inner horizontal surface, conical surface, outer horizontal surface or transitional surfaces established for Robins Air Force Base.

Outer horizontal surface means the horizontal surface plane that begins at the outer edge of the conical surface and extends for 30,000 feet at a height of 500 feet above the established airfield elevation.

Primary surface means the surface limits of the obstruction clearance requirements in the immediate vicinity of the landing area. The primary surface comprises surfaces of the runway, runway shoulders, and lateral safety zones and extends 200 feet beyond the runway end. The width of the primary surface for the Robins Air Force Base runway is 2,000 feet or 1,000 feet on each side of the runway centerline.

Structure means any stationary or mobile object constructed or installed by man, including, without limitation, buildings, towers, cranes, smoke stacks, earth formations and overhead transmission lines.

Transitional surfaces means the surfaces that connect the primary surfaces, clear zone surfaces and approach-departure clearance to the outer horizontal surface, conical surface and other horizontal or transitional surfaces. The slope of the transitional surface is 7:1 (one foot in elevation for each seven feet in distance from the starting point) outward and upward at right angles to the runway centerline extended.

(Code 1992, app. A, § 182; Ord. No. 94-2, § 2, 1-4-1994)

All zones in the city shall conform with the regulations in this article.

(Code 1992, app. A, art. VII(intro.))

The purpose of these provisions is to prevent the construction of objects which, because of their height, illumination or reflectivity, electrical emissions, and/or air emissions, represent an obstruction or safety hazard to air traffic operating in and out of Robins Air Force Base.

(Code 1992, app. A, § 181; Ord. No. 94-2, 1-4-1994)

These regulations shall apply to all lands within the city that are overlaid by the primary surface, clear zone surface, approach-departure clearance surfaces, inner horizontal surface, conical surface, outer horizontal surface or transitional surfaces established for Robins Air Force Base. All development activity within these areas shall comply with the performance standards in section 66-182, in addition to the requirements of the underlying zoning districts. Where conflicting standards and requirements exist, the more stringent standards and requirements shall apply.

(Code 1992, app. A, § 183; Ord. No. 94-2, § 3, 1-4-1994)

(a)

Height limitation. No structure shall be built which, by virtue of its finished height, would constitute an obstruction within the meaning of these regulations. Where the development or redevelopment of land within the areas affected by these regulations will involve substantial grading and/or site preparation, the planning commission or board of zoning appeals may require the applicant to remove any existing obstructions, either natural or manmade, on the site as a condition of development plan approval.

(b)

Use restrictions. No use may be made of land or water within the areas affected by these regulations that would:

(1)

Create or result in electrical interference with navigational signals or radio communications between Robins Air Force Base and aircraft operating within the affected areas;

(2)

Produce or reflect light in a sufficient intensity or manner that would make it difficult for pilots to distinguish between airport lights and other light sources, result in glare in the eyes of pilots using the base airport, or otherwise impair visibility in the vicinity of the base. All proposed light sources that could conflict with the requirement, except structure lighting required under FAR part 77, shall be properly shielded or directed away from a pilot's field of vision;

(3)

Emit smoke or particulate matter which, in sufficient quantities or concentrations, would impair pilot visibility in the vicinity of the base or clog aircraft engines; or

(4)

Attract large flocks of birds, which would constitute a hazard to air navigation in the vicinity of the base. No solid waste disposal facility or landfill may be sited within the areas affected by these regulations.

(Code 1992, app. A, § 184; Ord. No. 94-2, § 4, 1-4-1994)

The standard zoning compliance process for the jurisdiction shall apply to the areas affected by these regulations. However, any applicant proposing to construct that is:

(1)

Located within the Robins Air Force Base outer horizontal surface of the approach-departure horizontal surface and would exceed 200 feet in height as measured from its tallest point to the finished ground level; or

(2)

Located within the Robins Air Force Base primary surface, clear-zone surface, inner horizontal surface, conical surface, approach-departure glide angle surface, or any transitional surface and would exceed 100 feet in height as measured from its tallest point to the finished ground level; shall comply with the following review procedures, in addition to the normal zoning compliance process:

a.

Robins Air Force Base civil engineer's office review. The city shall provide a copy of an application for zoning compliance within the affected areas, including the development plan and a copy of the FAR part 77 review transmittal letter and application as require, to the staff of the Middle Georgia Regional Development Commission (MGRDC), within five days of submittal by applicant. The staff of the MGRDC will forward such information to the Robins Air Force Base civil engineer's office and any other affected parties for review. The MGRDC will review all comments and provide written recommendations to the city zoning enforcement officer and to MGRDC within ten days of receipt. The planning commission or board of zoning appeals may condition any approval upon Robins Air Force Base recommendations.

b.

FAA review. The applicant shall submit a copy of the application for FAA review under FAR part 77, if applicable. A copy of the FAR part 77 review transmittal letter and application shall be submitted to the city planning commission or board of zoning appeals to document compliance with this requirement. The planning commission or board of zoning appeals may condition any approval upon FAA approval under FAA part 77 review.

(Code 1992, app. A, § 185; Ord. No. 94-2, § 5, 1-4-1994; Ord. No. 2003-23A, 11-4-2003)

An applicant shall submit a preliminary plan in accordance with the applicable requirements of these regulations for any development that satisfies the special review requirements in section 66-183. The city zoning officer may require the applicant to submit any or all of the following items, if the additional information is necessary to ensure compliance with the performance standards in section 66-182:

(1)

Imaginary surface boundaries. The applicant may be required to delineate on the preliminary plan the boundaries of any primary surfaces, clear zone surface, conical surface, outer horizontal surface, or transitional surfaces, if the location of the aforementioned surface boundaries with respect to the proposed development site or proposed structure locations is in question. All maps prepared to show the location of these boundaries shall be drawn to a scale designated by the city zoning officer.

(2)

Location of structures. The applicant may be required to delineate the placement of all existing and proposed buildings and structures, including any existing or proposed tree stands.

(3)

Specification of uses. The applicant may be required to specify the proposed uses to occur within each structure or activity area on the development site.

(4)

Surface elevation benchmarks. The site plan shall show the surface elevation of all structures (above mean sea level) and the maximum height in feet of any structure. For residential subdivisions, surface elevations for the property shall be shown on the plan in five-foot contours with sufficient benchmarks to verify contour elevations.

(5)

Narrative descriptions. A narrative shall be provided describing:

a.

The location of the site, its total acreage, existing character and use;

b.

The concept of the proposed development or use, such as proposed residential density; and

c.

The relation of the proposed development plan to the (jurisdiction's) comprehensive plan.

(Code 1992, app. A, § 186; Ord. No. 94-2, § 6, 1-4-1994)

Any applicant wishing to erect a new structure, increase the height of an existing structure, permit the growth of any trees, or commit the property to a use that is not in compliance with the regulations prescribed in these regulations may apply to the board of zoning appeals for a variance. The application for variance must be submitted in the form and manner specified in these regulations, and it must be accompanied by a written determination from the Federal Aviation Administration and the Robins Air Force Base civil engineer's office stating that the proposed structure will not be located within a normal aircraft flight track, that the requested height variance will not be excessive, and that all appropriate measures will be taken by the applicant to prevent any negative impacts on safe navigation within the protected air space surrounding Robins Air Force Base. Such variances shall be issued only where it is duly determined that a literal application or enforcement of these regulations will result in unnecessary hardship, and the relief granted will not be contrary to the public interest, will not create a hazard to air navigation, will do substantial justice, and will be in accordance with the spirit and intent of these regulations. In addition, the board of zoning appeals may solicit the testimony of a qualified professional, at the expense of the applicant, to evaluate the proposed development plans and issue any professional findings or opinions that would assist the board in reaching a decision regarding the variance request. The selection of a qualified professional shall be done by the board of zoning appeals.

(Code 1992, app. A, § 187; Ord. No. 94-2, § 7, 1-4-1994)