Maryland Transit Administration Codes

Md.Transit Administration Codes

In keeping with the State of Maryland's move to follow Federal communications guidelines, the MTA no longer routinely uses 10-codes and has switched from the APCO phonetic alphabet to the NATO phonetic alphabet as of spring 2012. However, this change appears to not be enforced, and 10-codes and APCO letters are still commonly heard over the air.

10-0 Use Caution 10-1 Radio Check 10-2 Transmission Good 10-3 Transmission Poor 10-4 Acknowledge 10-5 Unit Failed To Acknowledge 10-6 Standby 10-7 out Of Service 10-8 In Service 10-9 Repeat 10-10 Fight in Progress 10-11 Meet 10-12 Domestic 10-14 Request Wagon 10-15 Urgent Wagon Request 10-16 Request Backup 10-17 Call Office 10-18 Return to Station 10-19 Meet Complainant 10-20 Location 10-21 Call______ 10-22 Disregard 10-23 Arrived on Scene 10-24 Assignment Completed 10-25 Report in Person 10-26 Detaining Suspect 10-27 Licence Check 10-28 Vehicle Registration Check 10-29 Warrant Check 10-30 Wanted or Stolen 10-31 In Progress 10-32 Sufficient Units on Scene 10-33 Emergency 10-34 Vehicle Stop 10-35 Arrest/Suspect In Custody 10-36 Time Check 10-37 Suspicious Vehicle 10-38 Ambulance 10-39 Weapon A] Firearm B] Sharp Object C] Hazardous Material 10-40 Silent Run (no lights or siren) 10-41 Begin Shift 10-42 End Shift 10-43 Fare Maintainance

10-44 Lunch 10-45 Assist Motorist 10-46 Fare Dispute 10-47 Negative 10-48 Positive 10-49 Hourly Call In 10-50 Unneccesary Use OF Radio 10-51 Dog Case 10-52 Request Tow Truck 10-53 Disabled Police Vehicle 10-54 Disabled MTA Vehicle 10-55 Intoxicated Driver 10-56 Intoxicated Person 10-57 Hit And Run 10-58 Direct Traffic 10-59 Railroad Crossing Gates Down 10-60 Transit Violation (no ticket/eating/smoking etc) 10-61 Disorderly Person 10-62 Suspect On Location 10-63 Prepare To Make Written Copy 10-64 Written Copy Completed 10-65 Parking Violation 10-66 Request Lateral 10-67 Power Loss 10-68 Power Lines Down 10-69 Patrons Stranded On Train A] Cooperative B] Agitated But Cooperative C] Uncooperative 10-70 Escort 10-71 Transport 10-72 Fire Alarm 10-73 Request Fire Department 10-74 Request Local Police 10-75 Train Delay 10-76 En route 10-77 Pick Up And Distribute Payroll 10-78 Bomb Threat 10-79 Mental Case 10-80 Vehicle Chase 10-81 Foot Chase 10-82 Notify Medical Examiner 10-83 Request Police Supervisor 10-84 Request Communications Van 10-85 Assist Other Police Agency 10-86 ETA

Signals

• 13 Officer Needs Assistance
• 30 Accident
• 31 Accident with injury
• 32 Accident with fatality
• 50 Alarm
• Disposition Codes are in Plain English with the exception of "Code 89". Code 89 is accident that does not require a written report, i.e., no injury, arrest or tow.