•  Protect the President, Vice President, or other public  fi gures; and •  Provide a safe environment for space agency  operations. 1. When forced to land due to an emergency beyond the  control of the operator; 2. At officially designated landing sites; or 3. An approved official business of the Federal  Government.  It is a pilot’s responsibility to be aware of TFRs in his or her  proposed area of flight. One way to check is to visit the FAA  website, www.tfr.faa.gov, and verify that there is not a TFR  in the area. Another resource is to ask the flight briefer at  800-WX-BRIEF during the prefl ight briefi ng. The landing of aircraft is prohibited on lands or waters  administered by the National Park Service, U.S. Fish and  Wildlife Service, or U.S. Forest Service without authorization  from the respective agency. Exceptions include: Terminal Radar Service Areas (TRSA) are areas where  participating pilots can receive additional radar services. The  purpose of the service is to provide separation between all  IFR operations and participating VFR aircraft. Pilots are requested to maintain a minimum altitude of  2,000 feet above the surface of the following: national  parks, monuments, seashores, lakeshores, recreation areas,  and scenic riverways administered by the National Park  Service, National Wildlife Refuges, Big Game Refuges,  Game Ranges, and Wildlife Ranges administered by the U.S.  Fish and Wildlife Service and wilderness and primitive areas  administered by the U.S. Forest Service.  The primary airport(s) within the TRSA become(s) Class D  airspace. The remaining portion of the TRSA overlies other  controlled airspace, which is normally Class E airspace  beginning at 700 or 1,200 feet and established to transition to/ from the en route terminal environment. TRSAs are depicted  on VFR sectional charts and terminal area charts with a solid  black line and altitudes for each segment. The Class D portion  is charted with a blue segmented line. Participation in TRSA  services is voluntary; however, pilots operating under VFR  are encouraged to contact the radar approach control and take  advantage of TRSA service. Operations inside the TFR area  must be conducted under the provisions of a waiver. Should  such an operation be contemplated, the WSC aircraft pilot  should consult with the local Flight Service District Offi ce  (FSDO) well in advance of the event. NSAs consist of airspace with defined vertical and lateral  dimensions established at locations where there is a  requirement for increased security and safety of ground  facilities. Flight in NSAs may be temporarily prohibited  by regulation under the provisions of 14 CFR part 99, and  prohibitions are disseminated via NOTAM. Published VFR routes are for transitioning around, under, or  through some complex airspace. Terms such as VFR fl yway,  VFR corridor, Class B airspace, VFR transition route, and  terminal area VFR route have been applied to such routes.  These routes are generally found on VFR terminal area  planning charts. WSC preflight planning should include a review of the  airspace that is flown. A local flight may be close to the fi eld  and include only Class G and Class E airspace. Minimum  visibility and cloud clearance may be the only requirements  to be met. However, a radio to communicate to the airport  traffic and an altimeter to fly at the proper airport pattern  altitude is recommended. If flying to control tower airports or through Class B, C, or  D airspace, determine if the WSC meets all of the equipment  requirements of that airspace.  [Figure 8-5]  Also review  qualifications to determine if the minimum pilot requirements  of the airspace are met. If the minimum aircraft and/or pilot  requirements of the airspace are not met, then the prefl ight  planning should include a course around the airspace. Extra  time and fuel is required for the circumnavigation and should  be taken into consideration prior to departure.  In nontowered airspace, airspace separation from other aircraft  is the responsibility of the pilot. Separation from higher speed  traffic may require flightpaths different than faster traffi c.  For flight and communicating with a control tower, the WSC  pilot may be asked to expedite or deviate from a traditional  course. The WSC pilot must work with ATC in advising of   WSC and Air Traffi c Control  Published VFR Routes  National Security Areas (NSAs)  WSC Operations  Terminal Radar Service Areas (TRSA)  Flight Over Charted U.S. Wildlife Refuges,  Parks, and Forest Service Areas 8-12