FAA Chart Users’ Guide - VFR Symbology - Sectional and Terminal Area Charts 29 AIRSPACE INFORMATION (Continued) Example: Washington DC Appropriate notes as  required may be shown. Example: Washington DC Appropriate notes as  required may be shown. Note: Delimiting line not  shown when it coincides  with International  Boundary, projection lines  or other linear features. NOAA Regulated National Marine Sanctuary Designated Areas National Park, Wildlife Refuge, Primitive and  Wilderness Areas, etc.  Special Conservation Areas Special Flight Rules Area (SFRA) Relating to National  Security Temporary Flight Restriction (TFR) Relating to National  Security