IFR Chart Symbols

42IFR AERONAUTICAL CHART SYMBOLSIFR Enroute Low/High Altitude (U.S. & Alaska Charts)AIRPORTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .RADIO AIDS TO NAVIGATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .AIRSPACE INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .NAVIGATIONAL AND PROCEDURAL INFORMATION . . . . . . . . . . . . . . .CULTURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .HYDROGRAPHY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TOPOGRAPHY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43444548494949Oceanic Route ChartsNorth Atlantic and North Pacific Route ChartsAIRPORTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .RADIO AIDS TO NAVIGATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .AIRSPACE INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .NAVIGATIONAL AND PROCEDURAL INFORMATION . . . . . . . . . . . . . . .CULTURAL BOUNDARIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .HYDROGRAPHY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .505050515151GENERAL INFORMATIONSymbols shown are for the Instrument Flight Rules (IFR) Enroute Low and High Altitude Charts.

43IFR ENROUTE LOW/HIGH ALTITUDE U.S. & ALASKA CHARTSAIRPORTSAIRPORTSAIRPORT DATAIFR ENROUTE LOW/HIGH ALTITUDECHARTSAERONAUTICALINFORMATIONLOW/HIGH ALTITUDEAirports/Seaplane bases shown in BLUE andGREEN have an approved Instrument ApproachProcedure published. Those in BLUE have anapproved DoD Instrument Approach Procedureand/or DoD RADAR MINIMA published in DoDFLIPS or FAA TPP. Airports/Seaplane bases shownin BROWN do not have a published InstrumentApproach Procedure.CIVILCIVIL ANDMILITARYAll IAP Airports are shown on the Low AltituideCharts.Non-IAP Airports shown on the U.S. LowAltitude Charts have a minimum hard surfacerunway of 3000'.MILITARYNon-IAP Airports shown on the Alaska LowAltitude Charts have a minimum hard or softsurface runway of 3000'.Airports shown on the U.S. High AltitudeCharts have a minimum hard surface runwayof 5000'.SEAPLANE CIVILAirports shown on the Alaska High AltitudeCharts have a minimum hard or soft surfacerunway of 4000'.Associated city names for public airports areshown above or preceding the airport name.If airport name and city name are the same,only the airport name is shown. City namesfor military and private airports are not shown.The airport identifier in parentheses follows theairport name or Pvt.Airport symbol may be offset for enroutenavigational aids.Pvt - Private UseAIRPORT DATADEPICTIONLOW ALTITUDE - U.S. & ALASKAAssociatedCity NameAirportNameAirportIdentifierPart-time or established byNOTAM. See Airport/FacilityDirectory for times ofoperation. In Alaska seeSupplement AlaskaAirspace ervicePart-timeFrequencyLongest runway length tonearest 100 feet with 70feet as the dividing point(add 00)s indicates soft surfaceLighting Capability:Lighting availablePilot Controlled LightingPart-time or on requestNo lighting availableAt private facilities - indicates nolighting information available.For complete information consult theAirport/Facility Directory.1. Airport elevation given in feet above or below mean sea level2. Pvt - Private use, not available to general public.3. A solid line box enclosing the airport name indicates FAR 93Special Requirements- see Directory/Supplement4. "NO SVFR" above the airport name indicates FAR 91fixed-wing special VFR flight is prohibited5. C orfollowing the airport identifier indicates Class C orClass D Airspace.6. Airport symbol may be offset for enroute navigational aids.7. Associated city names for public airports are shown above orpreceding the airport name. If airport name and city name arethe same, only the airport name is shown. The airport identifierin parentheses follows the airport name. City names for militaryand private airports are not shown.HIGH ALTITUDE - U.S.AssociatedCity NameAirportNameAirportIdentifierHIGH ALTITUDE - ALASKAAirportNameAirportElevationAssociatedCity NameAirportIdentifierLongest runway lengthto nearest 100 feetAutomaticwith 70 feet as theTerminaldividing point (add 00)FrequencyPart-timeInformations indicates soft surfaceServiceHELIPORT

IFR ENROUTE LOW/HIGH ALTITUDE U.S. & ALASKA CHARTSRADIO AIDS TO NAVIGATIONVHFOMNIDIRECTIONALRADIO RANGE(VOR)DISTANCEMEASURINGEQUIPMENT DIO BEACON(NDB)MARINERADIO BEACON(RBN)COMPASSLOCATORBEACONILS LOCALIZERVOR/DME RNAVWAYPOINT DATARNAVWAYPOINTRADIO AIDS TO NAVIGATIONNAVIGATION andCOMMUNICATIONBOXES44

45IFR ENROUTE LOW/HIGH ALTITUDE U.S. & ALASKA CHARTSAIRSPACE INFORMATIONLOW ALTITUDEAIRWAYSAIRSPACE INFORMATIONMILITARYTRAININGROUTES (MTR)LOW/HIGH ALTITUDEVHF / UHF Data is depited in BlackLF / MF Data is depicted in BrownRNAV Route data is depicted in BlueHIGH ALTITUDEROUTESV4VOR Airway /Jet RouteJ4LF /MF AirwayUncontrolled LF MFAirwayFIXES/ATC REPORTING REQUIREMENTSOceanic RouteLOW/HIGH ALTITUDELF/MFVHF/UHFT000WaypointNAMEE154ATS RouteFix-CompulsoryPosition ReportLow Altitude RNAV RouteGNSS RequiredCoordinates are shownfor compulsory, offshoreand holding fixesFix-Non-CompulsoryPosition ReportHIGH ALTITUDEMEA - 23000GQ7334MagneticReferenceBearingRNAV RouteOff-set arrows indicate facility forming a fixAirway away fromVHF/UHF NAVAID300Airway towardLF/MF NAVAIDMEA - 27000MEA - 23000GJ12RNAVQ7WaypointCompulsory Report300Joint Jet/RNAV RouteSINGLEDIRECTIONROUTESWaypointNon-Compulsory Report1000-0600Z1300-0600ZV 193Q11Other times routes revert to bi-directionalTACTICAL AIRNAVIGATION(TACAN)FIX - ALASKARADIALSANDBEARINGSDIRECTION OFFLIGHT INDICATORAll radials and bearingsare TEMILEAGESLOW /HIGH ALTITUDETotal Mileage betweenCompulsory ReportingPoints and/or NAVAIDsMileage between otherFixes, NAVAIDs and/orMileage BreakdownBY-PASSROUTEAll Mileages areNautical (NM)Mileage Breakdown orComputer Navigation Fix(CNF)(no ATC NGEQUIPMENT (DME)FIXFive-letter identifier inparenthesis indicates CNFwith no ATC function

IFR ENROUTE LOW/HIGH ALTITUDE U.S. & ALASKA CHARTSAIRSPACE INFORMATIONMINIMUMENROUTEALTITUDE (MEA)All Altitudes Are MSLUnless Otherwise NotedAIRSPACE INFORMATIONRNAV/GPS AFFICCONTROLCENTER (ARTCC)J4MINIMUMENROUTEALTITUDE (MEA)GAPMAXIMUMAUTHORIZEDALTITUDE (MAA)AIRDEFENSEIDENTIFICATIONZONE (ADIZ)LOW/HIGH ALTITUDEMEA is established whenthere is a gap in navigationsignal coverageV4AIR TRAFFICSERVICEIDENTIFICATIONDATAV4All Altitudes Are MSLUnless E (MOCA)All Altitudes Are MSLUnless OtherwiseNotedLOW ANGE7000*6300T266FLIGHTINFORMATIONREGIONS (FIR)112CHANGEOVERPOINTALTITUDECHANGECONTROLAREAS (CTA)MINIMUMCROSSINGALTITUDE (MCA)NEHERV6 4000 SWMINIMUMRECEPTIONALTITUDE (MRA)DIGGSV6 4000 SWGRANTT2447400 SELOW/HIGH EGIONS (UIR)UPPERCONTROL AREAS(UTA)LOW/HIGH ALTITUDEV4RNAV Holding Pattern Magnetic Reference Bearing isdetermined by theisogonic value at thewaypoint or WaypointRNAV Holding46

47IFR ENROUTE LOW/HIGH ALTITUDE U.S. & ALASKA CHARTSAIRSPACE INFORMATIONAIRSPACE INFORMATIONOFF AIRSPACEOROCA is computed similarly to the Maximun ElevationFigure (MEF) found on Visual charts except that itprovides an additional vertical buffer of 1,000 feet indesignated non-mountainous areas and a 2,000 footvertical buffer in designated mountainous areas withinthe United States.SPECIAL USEAIRSPACEP - Prohibited AreaR - Restricted AreaW - W arning AreaLow O nlyA - Alert AreaCanada O nlyCYR - Restricted AreaCYD - Danger AreaCYA - Advisory AreaCaribbean O nlyD - Danger AreaIn the Caribbean, the first 2 letters represent thecountry code, i.e. MY: Bahamas, MU: CubaEXCLUSIO N AREAAN D N O TEInternal lines delimitseparation of the sameSpecial Use Areas orExclusion AreasSEE AIRSPACE TABULATIO N O N EACH CHARTFO R CO MPLETE IN FO RMATIO N O N :AREA IDEN TIFICATIO NEFFECTIVE ALTITUDEO PERATIN G TIMECO N TRO LLIN G AG EN CY VO ICE CALLSPECIAL USEAIRSPACEContinued

IFR ENROUTE LOW/HIGH ALTITUDE U.S. & ALASKA CHARTSAIRSPACE INFORMATIONCONTROLLEDAIRSPACENAVIGATIONAL AND PROCEDURAL INFORMATIONISOGONIC LINEAND VALUETIME ZONEDuring periods of Daylight SavingTime (DT), effective hours will be onehour earlier than shown. All statesobserve DT except Arizona and Hawaii.ENLARGEMENTAREACONTROLLEDAIRSPACECanada OnlyMATCH MARKLOW/HIGH ALTITUDEUNCONTROLLEDAIRSPACECANADIAN AIRSPACEAppropriate notes asrequired may beshown.AIRSPACE OUTSIDEOF U.S.Other than CanadaAppropriate notes asrequired may beshown.48

49IFR ENROUTE LOW/HIGH ALTITUDE U.S. & ALASKA CHARTSNAVIGATIONAL AND PROCEDURAL INFORMATIONCRUISINGALTITUDESU.S. onlyNAVIGATIONAL AND PROCEDURAL INFORMATIONNOTESMORSE CODECULTUREBOUNDARIESCULTURE &HYDROGRAPHYInternationalU.S. /RussiaMaritime LineDate LineHYDROGRAPHYSHORELINETOPOGRAPHYTERRAINArea Charts

OCEANIC ROUTE CHARTS - Aeronautical InformationAIRSPACE INFORMATIONAIRPORTSAIR DEFENSEIDENTIFICATIONZONE (ADIZ)AIRPORT DATALANDPLANE-CIVILRefueling and repairfacilities for normaltraffic.AIR ROUTETRAFFIC CONTROLCENTER (ARTCC)LANDPLANE-CIVILAND MILITARYRefueling and repairfacilities for normaltraffic.FLIGHTINFORMATIONREGIONS (FIR)and/or (CTA)LANDPLANEMILITARYRefueling and repairfacilities for normaltraffic.UPPERINFORMATIONREGIONS (UIR)RADIO AIDS TO NAVIGATIONVHFOMNIDIRECTIONALRADIO RANGE(VOR)DISTANCEMEASURINGEQUIPMENT(DME)TACTICAL AIRNAVIGATION (TACAN)NON-DIRECTIONALRADIO BEACON(NDB)DISTANCEMEASURINGEQUIPMENT(DME)UPPER CONTROLAREAS (UTA)OCEANIC CONTROLAREAS (OCA)and /or (CTA /FIR)ADDITIONALOCEANIC CONTROLAREASNote: Limits notshown when coincident with WarningAreas.BUFFER ZONENON-FREEFLYING ZONEIDENTIFICATION BOXOCEANIC ROUTECHARTSAIRSPACE INFORMATIONAIR TRAFFIC SERVICE (ATS) OCEANICROUTESNote: Mileages areNautical (NM)ATS SINGLE DIRECTION ROUTENORTH ATLANTIC PS)REPORTINGPOINTSSPECIAL USEAIRSPACEWarning AreaSpecial Use12 Mile LimitAERIALREFUELINGTRACKSUNCONTROLLEDAIRSPACE50

51OCEANIC ROUTE CHARTS - Aeronautical InformationNAVIGATIONAL AND PROCEDURAL INFORMATIONMILEAGE CIRCLESNote: Mileages areNautical (NM)Time ZoneNote: All time isCoordinated Universal (Standard)Time (UTC)CULTURAL BOUNDARIESINTERNATIONALMARITIMEDATE LINEOverlap MarksNPRC OnlyCOMPASS ROSENote: CompassRoses oriented toMagnetic NorthHYDROGRAPHYSHORELINESNOTESWARNING

43 IFR ENROUTE LOW/HIGH ALTITUDE U.S. & ALASKA CHARTS AIRPORTS AIRPORT DATA IFR ENROUTE LOW/ HIGH ALTITUDE CHARTS AERONAUTICAL INFORMATION AIRPORT DATA DEPICTION LOW/HIGH ALTITUDE Airports/Seaplane bases shown in BLUE and GREEN have an approved Instrument Approach