12/31/20 AIM Side Stripe Markings, 2 − 3 − 3 Signs, Distance Remaining, 2 − 3 − 29 Threshold Bar, 2 − 3 − 4 Threshold Markings, 2 − 3 − 3 Touchdown Zone Markers, 2 − 3 − 2 Runway  Edge Light Systems, 2 − 1 − 6 End Identifier Lights, 2 − 1 − 6 Entrance Lights, 2 − 1 − 7 Centerline Lighting System, 2 − 1 − 6 Status Light (RWSL) System, 2 − 1 − 7, 2 − 1 − 8 RWSL System, Runway Status Light (RWSL) System. See  Runway Status Light (RWSL) System Runway, Visual Range, 7 − 1 − 36 Runways, Use, 4 − 3 − 8 RVR.  See  Runway Visual Range SIDA.  See  Security Identifications Display Area Side − Step Maneuver, 5 − 4 − 53 Signs Airport, 2 − 3 − 1 Half − Way, 7 − 6 − 5 Simplified Directional Facility, 1 − 1 − 15 Sinus Block, 8 − 1 − 4 Special Air Traffic Rules (SATR), 3 − 5 − 9 Special Category I Differential GPS (SCAT − I DGPS), 1 − 1 − 38 Special Flight Rules Area (SFRA), 3 − 5 − 9 Special Instrument Approach Procedures, 1 − 1 − 37, 5 − 4 − 29 Special Traffic Management Programs, 4 − 1 − 19 Special Use Airspace, 3 − 4 − 1 Alert Areas, 3 − 4 − 2 Controlled Firing Areas, 3 − 4 − 2 Military Operations Areas, 3 − 4 − 2 Prohibited Areas, 3 − 4 − 1 Restricted Areas, 3 Warning Areas, 3 − 4 − 2 Special VFR Clearances, 4 − 4 − 3 Speed, Adjustments, 4 − 4 − 7, 5 − 5 − 4 Spoofing, 1 − 2 − 9 Standard Instrument Departures, 5 − 2 − 6 Standard Terminal Arrival, 5 − 4 − 1 STAR.  See  Standard Terminal Arrival Surface Painted Holding Position Signs, 2 − 3 − 13 Surveillance Approach, 5 − 4 − 36 Surveillance Radar, 4 − 5 − 7 Surveillance Systems, 4 − 5 − 1 TACAN.  See  Tactical Air Navigation Tactical Air Navigation, 1 − 1 − 4 TAF.  See  Aerodrome Forecast Takeoff Hold Lights (THL), 2 − 1 − 8 Takeoffs, Intersection, 4 − 3 − 16 Taxi Clearance, 5 − 2 − 2 During Low Visibility, 4 − 3 − 24 Taxiway Centerline Markings, 2 − 3 − 7 Closed Safety Alert, 5 − 5 − 4 Alerts, 3 − 2 − 1 Aircraft Conflict, 3 − 2 − 1 Mode C Intruder, 3 − 2 − 1 Terrain/Obstruction, 3 − 2 − 1 Aviation, Reporting, 7 − 7 − 1 Seaplane, 7 − 6 − 6 Safety Alert, 4 − 1 − 10 Aircraft Conflict Alert, 4 − 1 − 11 Obstruction Alert, 4 − 1 − 11 Terrain Alert, 4 − 1 − 11 SAR.  See  Search and Rescue SCAT − I DGPS.  See  Special Category I Differential GPS Scuba Diving, Decompression Sickness, 8 − 1 − 4 SDF.  See  Simplified Directional Facility Seaplane, Safety, 7 − 6 − 6 Search and Rescue, 6 − 2 − 1, 6 − 2 − 4 Security Identification Display Area, 2 − 3 − 31 See and Avoid, 5 − 5 − 4 Separation IFR, Standards, 4 − 4 − 7 Runway, 4 − 4 − 10 Visual, 4 − 4 − 10, 5 − 5 − 6 Wake Turbulence, 7 − 4 − 7 Sequenced flashing lights (SFL), 2 − 1 − 9 SFL.  See  Sequenced flashing lights T S I − 10 Index