6.5.3.4 Chapter 6 Std.  The demonstration of compliance with the visual requirements to be made with only one pair of corrective lenses is not specifically required. 
6.5.3.4.1 Chapter 6 Std.  A requirement that a spare set of corrective lenses be readily available when exercising the priv-ileges of the licence is not established 
6.5.4.1.1 Chapter 6 Std.  Applicants are not required to demonstrate normal hearing against a background noise that repro-duces or simulates an air traffic control working environment. 
6.5.4.1.2 Chapter 6 Std.  Applicants are not required to take a practical hearing test. 

ANNEX 2 . RULES OF THE AIR 
Chapter 1  Definitions 
Advisory Airspace  Advisory service available in terminal areas and Class C outer area 
Aerodrome control tower  In the U.S., an “aerodrome control facility” is referred to as a “tower” or “airport traffic control tower”; “aerodrome control” is referred to as “airport traffic control service.” 
Aerodrome Traffic Zone  There are no more Control Zones (Airport Traffic Zones) or Airport Traffic Areas (ATA).  In the 7110.65, PCG, Controlled Airspace covers the defined dimensions of airspace.  Class D was formerly the ATA (normally a 5NM radius around the airport).  The old Control Zones were extensions of the ATA to encompass (ILS) Approach Paths. 
Airborne collision avoidance  The U.S. uses “traffic alert collision avoidance system (TCAS).” TCAS is an airborne collision avoidance system based on radar beacon signals and operates independent of ground.based equipment. TCAS.I generates traffic advisories only. TCAS.II generates traffic advisories and resolution (collision avoidance) advisories in the vertical plane. 
Airborne Collision Avoidance System (ACAS)  The U.S. uses “traffic alert collision avoidance system (TCAS).” TCAS is an airborne collision avoidance system based on radar beacon signals and operates independent of ground.based equipment. TCAS.I generates traffic advisories only. TCAS.II generates traffic advisories and resolution (collision avoidance) advisories in the vertical plane. 
Air.ground Control Radio Station  FAA Pilot Controller Glossary, as amended by GENOT 5/55 (10/4/05) defines (in part) Flight Service Station (FSS) as ”air traffic facilities which provide pilot briefing, en route communications and VFR search and rescue services, assist lost aircraft and aircraft in emergency situations, relay ATC clearances, originate Notices to Airmen, broadcast aviation weather and NAS information and receive and process IFR flight plans,...provide enroute flight advisory service (Flight Watch), (and) issue airport advisories.”  In the FAA, Flight Service Stations perform most air traffic air.to.ground radio functions other than the separation of aircraft. 
Air.taxiing  The U.S. uses “hover taxi” for this maneuver above 100 feet above ground level (AGL) and “air taxi” below 100 feet AGL. 
Area control service  The U.S. does not use the term “area control service” to indicate controlled flight in controlled areas. 
Area control centre  The U.S. equivalent facility for an Area Control Centre (ACC) is an Air Route Traffic Control Center (ARTCC). 
ATS route  In U.S. domestic airspace, the term “ATS route” is not used. Routes in the U.S. include VOR airways, jet routes, substitute routes, and off.airway routes. The U.S. also uses instrument departure procedures (DPs) and standard terminal arrivals (STARs). 
Controlled airspace  The U.S. terms for controlled airspace have different parameters than for ICAO. 
Current Flight Plan  FAA Pilot Controller Glossary (PCG) defines flight plan as “specified information relating to the intended flight of an aircraft that is filed orally or in writing with an FSS or an ATC facility.” The Pilot Controller Glossary makes a specific distinction between current flight plan and filed flight plans, defining filed flight plans as “filed...without any subsequent changes or clearances.” Therefore, the PCG definition of flight plan includes changes brought about by clearances or amendments 
Danger area  The term “danger area” is not used within the U.S. or any of its possessions or territories. 
Estimated off.block time  The U.S. uses the term “estimated departure time” for domestic operations. 
Flight information centre  The U.S. does not operate flight information centers (FICs). In the U.S., the services provided by FICs are performed by air traffic control (ATC) facilities, automated flight service stations (AFSSs), and rescue coordination centers (RCCs). 
　
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