10 CODE VERSIONS
| Code | APCO | APCO-0 | Norfolk, VA | Walnut Creek, CA |
|---|---|---|---|---|
| 10-1 | Unable to Copy - Change Location |
Signal Weak | Police Officer Needs Help | Poor Radio Reception |
| 10-2 | Signal Good | Signal Good | Assist Officer | Good Radio Reception |
| 10-3 | Stop Transmitting | Stop Transmitting | Clear the Air-Emergency | Stop Transmission |
| 10-4 | Acknowledgment (OK) | Affirmative (OK) | O.K., Acknowledgment | Message Received |
| 10-5 | Relay | Relay To / From | See a Complainant | Relay Message |
| 10-6 | Busy - Unless Urgent | Busy | Investigation Police or Fire | Change Radio Channel |
| 10-7 | Out of Service | Out of Service | (a) Out of Service - Off the Air (b) Out of Service - Subject to Call |
Out of Service |
| 10-8 | In Service | In Service | In Service | In Service |
| 10-9 | Repeat | Say Again | Arrived at Scene | Repeat Message |
| Code | APCO | APCO-0 | Norfolk, VA | Walnut Creek, CA |
| 10-10 | Fight in Progress | Negative | Traffic Detail | Off Duty |
| 10-11 | Dog Case | ___ on Duty (Employee Number) | Broken Glass | Visitors Can Hear Radio |
| 10-12 | Stand By (Stop) | Stand By (Stop) | Vandalism | Advise Weather / Road Conditions |
| 10-13 | Weather-Road Report | Weather Conditions | (a) Leaking Water Main or Sewer (b) Hole in the Street / Sidewalk |
none |
| 10-14 | Prowler Report | Message / Information | Convoy or Escort | none |
| 10-15 | Civil Disturbance | Message Delivered | Have Prisoner in Custody | Have Prisoner in Custody |
| 10-16 | Domestic Problem | Reply to Message | Pick Up Prisoner | Pick Up |
| 10-17 | Meet Complainant | Enroute | Administrative Assistance | Getting Fuel |
| 10-18 | Quickly | Urgent | Detail | none |
| 10-19 | Return to ___ | (In) Contact | Return to Station | Return or Go to ___ |
| Code | APCO | APCO-0 | Norfolk, VA | Walnut Creek, CA |
| 10-20 | Location | Location | What is Your Location | Location |
| 10-21 | Call ___ by Phone | Call ___ by Phone | Call ___ by Telephone | Telephone |
| 10-22 | Disregard | Disregard | Investigate a Break In | Cancel or Disregard |
| 10-23 | Arrived at Scene | Arrived at Scene | Breaking In (In Progress) | Stand By |
| 10-24 | Assignment Completed | Assignment Completed | Someone in the Building | none |
| 10-25 | Report in Person (Meet) | Report to (Meet) | Prowler | Do You Have Contact With ___ ? |
| 10-26 | Detaining Subject, Expedite | Estimated Arrival Time (ETA) | Larceny | Clear of Warrants |
| 10-27 | (Drivers) License Information | License / Permit Information | Rape Report | Subject Wanted |
| 10-28 | Vehicle Registration Information |
Vehicle Information | Check Full Registration, License, Motor, Name, Stolen |
Registration Check |
| 10-29 | Check for Wanted | Records Check | Person with a Gun | Check for Warrants |
| Code | APCO | APCO-0 | Norfolk, VA | Walnut Creek, CA |
| 10-30 | Unnecessary Use of Radio | Danger / Caution | (a) Vehicle Accident (b) Vehicle Accident Personal Injury (c) Hit and Run |
none |
| 10-31 | Crime in Progress | Pick Up | Hold Up and Robbery | none |
| 10-32 | Man with Gun | ___ Units Needed (Specify) | Defective Traffic Light | none |
| 10-33 | Emergency | Need Immediate Assistance | Execute Warrant | Alarm is Sounding |
| 10-34 | Riot | Current Time | Narcotics Investigation | none |
| 10-35 | Major Crime Alert | none | Get a Stolen Auto Report | Time Check |
| 10-36 | Correct Time | none | Correct Time | Correct Time |
| 10-37 | (Investigate) Suspicious Vehicle | none | Finished With Last Assignment | Please Identify Your Unit |
| 10-38 | Stopping Suspicious Vehicle | none | (a) Reckless Driving (b) Drunk Driver |
none |
| 10-39 | Urgent - Use Light, Siren | none | Report of a Dead Person | Can ___ Come to Radio? |
| Code | APCO | APCO-0 | Norfolk, VA | Walnut Creek, CA |
| 10-40 | Silent Run - No Light, Siren | Fight in Progress | Suspicious Person-Auto | Is ___ Available for Phone Call? |
| 10-41 | Beginning Tour of Duty | Beginning Tour of Duty | (a) Lost Child (b) Investigate Runaway |
none |
| 10-42 | Ending Tour of Duty | Ending Tour of Duty | Car Improperly Parked | none |
| 10-43 | Information | In Pursuit | Drunk | none |
| 10-44 | Permission to Leave ___ for ___ | Riot | Disturbance (type) | none |
| 10-45 | Animal Carcass at ___ | Bomb Threat | Fight | Subject Condition: A to D |
| 10-46 | Assist Motorist | Bank Alarm | Attempted Suicide | none |
| 10-47 | Emergency Road Repair at ___ |
Complete Assignment Quickly | (a) Injured (b) Sick (c) Demented Person (d) Maternity Case |
none |
| 10-48 | Traffic Standard Repair at ___ | Detaining Suspect, Expedite | Person Overboard | none |
| 10-49 | Traffic Light Out at ___ | Drag Racing | Barking Dog | Proceeding to ___ |
| Code | APCO | APCO-0 | Norfolk, VA | Walnut Creek, CA |
| 10-50 |
Accident: F - Fire, PI - Personal Injury, PD - Property Damage. |
Vehicle Accident: F - Fire, PI - Personal Injury, PD - Property Damage. |
Court Cases | Drugged |
| 10-51 | Tow Truck Needed | Dispatch Tow Truck | General Message | Drunk |
| 10-52 | Ambulance Needed | Dispatch Ambulance | Open Door / Window(state Which) | Ambulance Needed |
| 10-53 | Road Blocked at ___ | Road Blocked | Gas-Repairs-Wash | Person Down |
| 10-54 | Livestock on Highway | Hit and Run Accident: F - Fire, PI - Personal Injury, PD - Property Damage. |
Man Molesting Children | Possible Body |
| 10-55 | Intoxicated Driver | Intoxicated Driver | Bomb Threat | Coroner's Case |
| 10-56 | Intoxicated Pedestrian | Intoxicated Pedestrian | Unruly Crowd | Suicide (a) - Attempted |
| 10-57 | Hit and Run: F - Fire, PI - Personal Injury, PD- Property Damage. |
Request BT Operator | Tampering With Automobile | none |
| 10-58 | Direct Traffic | Direct Traffic | Burglar Alarm | none |
| 10-59 | Convoy or Escort | Escort | Traffic Violator | Security Check |
| Code | APCO | APCO-0 | Norfolk, VA | Walnut Creek, CA |
| 10-60 | Squad in Vicinity | Suspicious Vehicle | (a) Dead Dog (b) Live Dog (c) Stray Dog (d) Dog Bite |
none |
| 10-61 | Personnel in Area | Stopping Suspicious Vehicle | Void IBM Card | Bike Theft |
| 10-62 | Reply to Message | B and E in Progress (Breaking & Entering) |
Radio Test | none |
| 10-63 | Prepare to Make Written Copy | Prepare to Receive an Assignment | Personal Relief | Prepare to Copy |
| 10-64 | Message for Local Delivery | Crime in Progress | Eating (state Location) | none |
| 10-65 | Net Message Assignment | Armed Robbery | Exposure | none |
| 10-66 | Message Cancellation | Notify Medical Examiner | Send Tow Truck to (a) Owner Request (b) Police Request |
Suspicious Person |
| 10-67 | Clear for Net Message | Report of Death | Smoke and Flames Visible | Person Calling for Help |
| 10-68 | Dispatch Information | Livestock in Roadway | In Commission on Stand-By | none |
| 10-69 | Message Received | Advise Telephone Number | Held Up By Bridge or Train | none |
| Code | APCO | APCO-0 | Norfolk, VA | Walnut Creek, CA |
| 10-70 | Fire Alarm | Improper Parked Vehicle | Danger / Caution | Prowler |
| 10-71 | Advise Nature of Fire | Improper Use of Radio | False Alarm | Shots Fired |
| 10-72 | Report Progress on Fire | Prisoner in Custody | Person Found in Burning Building | none |
| 10-73 | Smoke Report | Mental Subject | Existing Conditions | How Do You Copy? |
| 10-74 | Negative | Prison / Jail Break | Enroute | none |
| 10-75 | In Contact with ___ | Wanted or Stolen | Dispatch Mechanic | none |
| 10-76 | En Route ___ | Prowler | Rewind Box (Give Location) | none |
| 10-77 | ETA (Estimated Time of Arrival) |
Direct Traffic at Fire Scene | Send VEPCO (state Gas or Electric), (b) send C & P (phone) |
none |
| 10-78 | Need Assistance | none | Held Up by (state) | none |
| 10-79 | Notify Coroner | none | Courtesy Call | none |
| Code | APCO | APCO-0 | Norfolk, VA | Walnut Creek, CA |
| 10-80 | Chase in Progress | Fire Alarm | Critical Call (Code Red) | Explosion |
| 10-81 | Breatherlizer Report | Nature of Fire | Fire Alarm | none |
| 10-82 | Reserve Lodging | Fire in Progress | Additional Engine Co. | none |
| 10-83 | Work School Crossing at ___ | Smoke Visible | Additional Ladder Co. | none |
| 10-84 | If Meeting ___, Advise ETA (Estimated Time of Arrival) |
No Smoke Visible | Second Alarm | none |
| 10-85 | Delay due to ___ | Respond without Blue Lights / Siren |
Third Alarm | none |
| 10-86 | Officer / Operator on Duty | none | Person Trapped | Any Traffic for Me? |
| 10-87 | Pickup / Distribute Checks | none | Auto Fire | none |
| 10-88 | Present Telephone # of ___ | none | Request Deputy Chief | Provide Cover for Units |
| 10-89 | Bomb Threat | none | Request Additional Chief | none |
| Code | APCO | APCO-0 | Norfolk, VA | Walnut Creek, CA |
| 10-90 | Bank Alarm at ___ | none | Transfer Fire Alarm Wire | none |
| 10-91 | Pick Up Prisoner / Subject | none | Check Fire Alarm Box or Master Box |
Hazard |
| 10-92 | Improperly Parked Vehicle | none | Fire Alarm Circuit Open or Trouble on Circuit |
none |
| 10-93 | Blockade | none | Fire Alarm | none |
| 10-94 | Drag Racing | none | Request Gas or Diesel Fuel | none |
| 10-95 | Prisoner / Subject in Custody | none | Grass or Trash Fire | none |
| 10-96 | Mental Subject | none | In Quarters | none |
| 10-97 | Check (Test) Signal | none | Signal Weak | Arrived at Scene |
| 10-98 | Prison / Jail Break | none | Signal Good | Completed Assignment |
| 10-99 | Wanted / Stolen Indicated | none | Fireman Need Help | none |
| 10-100 | none | Dead Body Found | none | none |
| 10-101 | What is Status? (Are you secure?) |
What is Status? (Are you secure?) |
none | none |
| 10-106 | Secure (Status is secure) | Secure (Status is secure) | none | none |
10 Code Summary
| 10 Code Version |
|
|---|---|
| APCO | Download |
| APCO-0 | Download |
| Norfolk VA | Download |
| Walnut Creek CA | Download |
| Full List | Download |
|
Universal Messages
Used by Most Code Versions |
|
|---|---|
| 10-4 | -- Acknowledge |
| 10-7 | -- Out of Service |
| 10-8 | -- In Service |
| 10-20 | -- Location |
| 10-21 | -- Call ____ by Phone |
| 10-28 | -- Vehicle Identification |