Code Keys - Explanation of the terms used

Country:   TunisiaLatitude: 37° 17' N
Geographic Region:   TUNISIA Longitude:9° 53' E

Publication131  Tugs SalvageN   Lifts 
Chart52184  Tugs AssistY          200 Tons Plus
Harbor SizeM  Quarantine           50-200 Tons
Harbor TypeCB         Pratique          25-49 Tons 
Shelter AffordedG         Deratt CertY          0-24 Tons 
Entrance Restrictions          Other   Services 
       Tide N  Communications           LongshoreY
       Swell N         TelephoneN          Electrical
       Ice N         Telegraph          Steam
       Other Y         Radio Y          Navig Equip
Overhead Limits         Radio Tel Y          Elect Repair
Channel DepthJ         AirY   Supplies 
Anchorage DepthJ         RailY          Provisions Y
Cargo Pier DepthK  Load/Offload           Water Y
Oil Terminal DepthJ         Wharves Y          Fuel Oil N
Tide1         Anchor          Diesel Oil N
Maximum Size VesselL         Med MoorY          Deck
Good Holding GroundY         Beach Moor          Engine
Turning Area         Ice Moor   RepairB
First Port of EntryY  Medical FacilitiesY   DrydockL
U.S. RepresentativeN  Garbage Disposal   Railway
ETA MessageY  Degauss     
Pilotage   Dirty BallastN     
       Compulsory   Cranes      
       Available Y         Fixed     
       Local Assist         MobileY     
       AdvisableN         FloatingY