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AIP Sponsor Guide -500 9/4/12 <br />Central Region Airports Division <br />550 - Runway Protection Zones <br />Overview <br />Runway protection zones are a trapezoidal area `off the end of the runway end that serves to enhance <br />the protection of people and property on the ground" in the event an aircraft lands or crashes beyond the <br />runway end. Runway Protection Zones underlie a portion of the approach closest to the airport. <br />Many people have confused the RPZ with the need for Object Free Areas (OFA), Obstacle Free Zones <br />(OFZ), Object clearing criteria, and Part 77 requirements. Each of these serves distinct purposes and are <br />not all coincident. <br />While the RPZ also has limitations on obstructions (because it lies below the approach surface and <br />because it includes safety areas and obstacle free areas), the primary purpose of the RPZ is the <br />protection of people and property on the ground. <br />Airport Property and the RPZ <br />Under FAA design criteria (which applies to all obligated airports), the airport must own the landing area. <br />Secondly the airport owner must have sufficient interest in the Runway Protection Zones to protect the <br />Runway Protection Zones from both obstructions and incompatible land use. <br />Finally the airport owner must strive to attain compatible zoning around the airport in order to prevent <br />incompatible land uses that: <br />• Could cause sufficient conflict that endangers the airport <br />• Cause it to be closed or <br />• Require substantial remedial investment to purchase conflicting developed property. <br />Sponsor may attain sufficient interest in the Runway Protection Zones in three primary ways. <br />(1) The first and the preferred method is for the airport to purchase the approach areas in fee. <br />Ownership in fee is preferred because it provides maximum control for the airport. <br />(2) The second is through purchase of an easement (or a combination of easement and zoning). <br />(3) The third alternative is to rely upon adequate zoning which should be enacted even if fee or <br />easement ownership is in place. <br />FAA Advisory Circular 150/5300 -13 states this ownership policy as follows: <br />"All ... existing and planned airport elements including the following should be on airport property. (A) Object <br />Free areas, (B) Runway Protection Zones (C) Areas under ...Part 77 ... imaginary surfaces out where the <br />surfaces obtain a height of at least 35 feet above the primary surface; and (d) Areas, other than those which <br />can be adequately controlled by zoning, easements, or other means to mitigate potential incompatible <br />uses ... Such control includes clearing RPZ areas (and maintaining them clear) of incompatible uses and <br />activities! <br />Through experience we have learned that it is usually less expensive in the long run to acquire the RPZ in <br />fee rather than acquiring an easement. This is because an easement must be very restrictive in order to <br />provide adequate control unless zoning is also very restrictive. <br />500 -14 <br />70 <br />