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Quizzes > Society & Culture > Politics & Civics

Think You Know Cop Code 10-7? Take the Police 10 Codes Quiz

Ready to decode California police 10 codes like 10-0 and 1020? Dive in now!

Difficulty: Moderate
2-5mins
Learning OutcomesCheat Sheet
Paper art police badge city skyline cop code 10-7 quiz on sky blue background

Use this quiz to practice police 10 codes and see how you handle real radio prompts across states and counties. Work through quick items, spot gaps, and learn regional twists like Brevard County and Broward County so you improve recall and speed while you play.

What is the meaning of the police radio code "10-4"?
Affirmative; message received
Repeat message
Stand by
Negative; cannot comply
10-4 is one of the most widely recognized ten-codes and means 'Affirmative' or 'Message received.' It indicates that the transmitting officer's message has been understood. Different agencies may have slight variations, but 10-4 is nearly universal in law enforcement. For more details see .
What does the ten-code "10-7" instruct an officer to do?
Emergency; all units respond
Come in
Out of service
In pursuit
10-7 signals that an officer is 'Out of service' and not available for calls. It alerts dispatch to remove the unit from active status. Agencies across the U.S. commonly use this code for break times or end of shift. Learn more at .
The code "10-8" on police radio refers to what?
Busy; standby
Proceed to location
Urgent business
Available for assignment
10-8 indicates that the officer is 'Available for assignment' or 'In service.' It tells dispatch the unit is ready to take calls. This code is essential for managing unit status on patrol. See for more.
In ten-code signals, "10-20" is used to ask for what information?
Location
Time
Situation report
Backup
10-20 is shorthand for 'What is your location?' or 'Location, please?'. It allows quick coordination of units on the air. While some agencies say 'CODE 20', the meaning remains consistent. More context at .
What does "10-6" indicate in ten-codes?
Out of car
Busy; standby
Suspicious person
ETA
10-6 means 'Busy, standby' and is used when an officer cannot immediately take a call. It notifies dispatch to hold further transmissions. It helps maintain efficient radio traffic flow. For additional info see .
The code "10-28" is used to request which of the following?
Fire department status
Vehicle registration information
Warrant status for a person
Traffic stop approval
10-28 requests vehicle registration and license information from dispatch or a database. It's a routine check during traffic stops. This code helps officers verify ownership and status quickly. See for more examples.
What is the meaning of the ten-code "10-33"?
Traffic accident
Emergency; all units respond
Coroner's case
Proceed with caution
10-33 is used to declare an emergency requiring immediate response by all available units. It overrides normal radio protocols. Although exact usage can vary, it universally indicates high priority. Refer to for more.
In ten-codes, "10-23" stands for what?
Report in person
Standby
Medical assistance needed
Arrived at scene
10-23 is used to inform dispatch and other units that the officer has 'Arrived at scene.' It updates the unit's status in ongoing incidents. Agencies rely on it to track resource deployment. More details at .
When an officer requests "10-29", what are they checking?
Suspicious activity
Warrant and wants status
Vehicle speed
Firearm registration
10-29 is a request to check for warrants and wants on a person or vehicle. It's a critical safety check before speaking to subjects. Responses come back as 'clear' or list any outstanding issues. More structure at .
Code "10-50" is used for which type of incident?
Suspicious vehicle
Vehicle accident
Weapons discharge
Fire
10-50 designates a motor vehicle accident. It allows dispatch to route appropriate traffic, fire, and medical resources. Many jurisdictions also use sub-codes (e.g., 10-50 PI) for personal injury. See for variations.
What does the ten-code "10-99" typically signal?
Situation under control
Wanted/stolen indicated
No wants or warrants
Officer out of service
10-99 is used to advise that a subject or vehicle is wanted or stolen. It alerts responding units to exercise caution. Clearing this code can involve confirming identity or status. For more context see .
An officer on the air asks for "10-36". What information are they requesting?
Current speed
Time
Suspect description
Location
10-36 is a straightforward request for the current time. It helps synchronize operations and reports. Time checks are common during incidents requiring precise logs. Further explanation at .
In some ten-code systems, "10-61" refers to which service?
Unconscious person
Answering service
Field interview card check
Hazardous materials unit
10-61 is an obscure code that in certain jurisdictions means 'Answering service.' It indicates the officer is relaying a message from that service. Codes can vary widely by agency, so always confirm local standards. See for context.
Historically, what does the code "10-42" signify?
Emergency assistance
Starting tour of duty
Ending tour of duty
Taking a break
10-42 traditionally means 'Ending tour of duty' or 'Out of service at headquarters.' It marks the end of an officer's shift. While not universally used today, it appears in older code lists. For more background see .
What is indicated by a "10-11" transmission?
On duty, subject to call
In pursuit
Officer needs backup
Medical emergency
10-11 tells dispatch and other units that the officer is 'On duty, subject to call.' It is used when an officer is not actively patrolling but remains available. Some agencies omit this code entirely in modern use. More info at .
The code "10-17" is primarily a request for what?
Change in radio channel
Delivery of a message
Medical assistance on scene
Backup needed immediately
10-17 is used when an officer needs to 'Deliver a message' to a person or unit. It often indicates non-urgent business that must be conveyed. The code streamlines radio traffic for routine messaging. See for variations.
Code "10-31" is used to report which situation?
Suspicious person
Traffic obstruction
Fire outbreak
Crime in progress
10-31 means 'Crime in progress' and demands immediate attention. It alerts units that an active offense is occurring. This code helps prioritize urgent calls. Find more nuances at .
What does the code "10-67" commonly indicate?
Officer needs medical aid
Nothing found upon arrival
Evidence collected
False alarm
10-67 is used to report 'Nothing found' at a dispatched location. It closes out the call when there is no incident. Agencies rely on it to update call logs quickly. More examples at .
The code "10-12" is used to signify which of the following?
Suspicious activity
Backup needed
Traffic complaint
Visitors present
10-12 means 'Visitors or civilians present' and is a reminder to officers not to transmit confidential information. It helps protect privacy when non-law enforcement personnel are on site. Usage varies, so officers confirm local policy. See .
In many jurisdictions, "10-32" typically refers to what?
Bomb threat
Domestic disturbance
Person with a gun
Traffic violation
10-32 is commonly 'Person with a gun' or 'Gun involved'. It alerts units to a potentially armed individual. This high-priority call influences tactical response and safety protocols. Additional details at .
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Study Outcomes

  1. Understand Cop Code 10-7 -

    Grasp the meaning and practical use of cop code 10-7 in routine and emergency law enforcement communications.

  2. Identify California Police 10 Codes -

    Recognize key california police 10 codes and their standard definitions to enhance situational awareness during state-specific dispatch scenarios.

  3. Recall 10-0 Police Code and 1020 Police Code -

    Memorize the definitions behind 10-0 police code and 1020 police code to accurately interpret critical radio traffic.

  4. Differentiate Ten Codes Florida Signals -

    Distinguish ten codes florida from other state variations to avoid confusion when comparing multi-jurisdictional communications.

  5. Apply 10-Code Knowledge -

    Use your understanding of police 10 codes to interpret real-world law enforcement exchanges with confidence and clarity.

  6. Evaluate and Improve -

    Analyze your quiz performance to pinpoint knowledge gaps and reinforce mastery of essential ten codes.

Cheat Sheet

  1. Cop Code 10-7 (Out of Service) -

    Used nationwide to indicate an officer is temporarily unavailable, cop code 10-7 instantly frees units for reassignment without lengthy radio chatter. Remember the mnemonic "Seven Heaven = Off to Rest": when you hear 10-7, the unit is taking a break or completing paperwork (IACP Radio Communications Guidelines).

  2. California Police 10 Codes Variations -

    California agencies often adapt ten codes from the State CHP manual, so "10-15" can mean "Transporting a prisoner" in LA but "En route to hospital" in Sacramento. Review the official CHP Radio Code Handbook online to spot regional quirks and avoid mix-ups on mutual-aid calls (California Highway Patrol).

  3. 10-0 Police Code (Caution) -

    In many departments 10-0 signals "Caution" or "Use caution" when approaching a scene, similar to "Copy-that" but with an added safety alert. Think "Zero standing for hazard" to recall that 10-0 means watch your six, especially on high-risk stops (NJ State Police Radio Procedures).

  4. 1020 Police Code (Location) -

    Requesting "10-20" asks for a unit's or incident's location. A handy trick: "Two-Two-0, where are you though?" - use that rhyme to quickly recall you're asking "What's your present position?" (Federal Communications Commission guidelines).

  5. Ten Codes Florida Edition -

    Florida law enforcement blends national ten codes with state-specific signals like 10-34 ("Resume normal operations") unique to FDLE standards. Check the FDLE Communications Manual to master Sunshine State signals and ensure flawless multi-agency coordination.

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