The AAMVA Code Dictionary (ACD) is a set of codes used nationwide to identify:

  • The type of driver conviction or
  • The reason for a driver withdrawal

ACD codes are used in messages sent over AAMVAnet, which is AAMVA's proprietary, secure computer network that connects to each state driver licensing agency (SDLA) in the 50 U.S. states and the District of Columbia. ACD codes are AAMVA’s proprietary information (aamva.org).

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ACD Codes:

  • A04 – Driving under the influence of alcohol with BAC at or over .04 (PLI = Prescribed Limit)
  • A08 – Driving under the influence of alcohol with BAC at or over .08
  • A10 – Driving under the influence of alcohol with BAC at or over .10
  • A11 – Driving under the influence of alcohol with BAC at or over _ _ (detail field required)
  • A12 – Refused to submit to test for alcohol – Implied Consent Law
  • A20 – Driving under the influence of alcohol or drugs
  • A21 – Driving under the influence of alcohol
  • A22 – Driving under the influence of drugs
  • A23 – Driving under the influence of alcohol and drugs
  • A24 – Driving under the influence of medication not intended to intoxicate
  • A25 – Driving while impaired
  • A26 – Drinking alcohol while operating a vehicle
  • A31 – Illegal possession of alcohol
  • A33 – Illegal possession of drugs (controlled substances)
  • A35 – Possession of open alcohol container
  • A41 – Driver violation of ignition interlock or immobilization device
  • A50 – Motor vehicle used in the commission of a felony involving manufacturing, distributing, or dispensing a controlled substance
  • A60 – Underage Convicted of Drinking and Driving at .02 or higher BAC
  • A61 – Underage Administrative Per Se – Drinking and Driving at .02 or higher BAC
  • A60 – Underage Convicted of Drinking and Driving at .02 or higher BAC
  • A61 – Underage Administrative Per Se – Drinking and Driving at .02 or higher BAC
  • A90 – Administrative Per Se for .10 BAC
  • A94 – Administrative Per Se for .04 BAC
  • A98 – Administrative Per Se for .08 BAC
  • B01 – Hit and run – failure to stop and render aid after accident
  • B02 – Hit and run – failure to stop and render aid after accident – Fatal accident
  • B03 – Hit and run – failure to stop and render aid after accident – Personal injury accident
  • B04 – Hit and run – failure to stop and render aid after accident – Property damage accident
  • B05 – Leaving accident scene before police arrive
  • B06 – Leaving accident scene before police arrive – Fatal accident
  • B07 – Leaving accident scene before police arrive – Personal injury accident
  • B08 – Leaving accident scene before police arrive – Property damage accident
  • B14 – Failure to reveal identity after fatal or personal injury accident
  • B19 – Driving while out of service order is in effect and transporting 16 or more passengers, including the driver and/or transporting hazardous materials that require a placard
  • B20 – Driving while license withdrawn
  • B21 – Driving while license barred
  • B22 – Driving while license canceled
  • B23 – Driving while license denied
  • B24 – Driving while license disqualified
  • B25 – Driving while license revoked
  • B26 – Driving while license suspended
  • B27 – General driving while out of service order is in effect
  • B41 – Possess or provide counterfeit or altered driver license (includes DL, CDL, and Instruction Permit) or ID
  • B51 – Expired or no driver license (includes DL, CDL, and Instruction Permit)
  • B56 – Driving a CMV without obtaining a CDL
  • B61 – Failed to file accident report
  • B63 – Failed to file future proof of financial responsibility
  • B64 – Failed to file insurance certification
  • B65 – Failed to file medical certification/disability information
  • B91 – Improper classification or endorsement on driver license (includes DL, CDL, and Instruction Permit)
  • D02 – Misrepresentation of identity or other facts on application for driver license (includes DL, CDL, and Instruction Permit)
  • D06 – Misrepresentation of identity or other facts to obtain alcohol
  • D07 – Possess multiple driver licenses (includes DL, CDL, and Instruction Permit)
  • D10 – Manufacture or make false driver license (includes DL, CDL, and Instruction Permit)
  • D16 – Show or use improperly – Driver license (includes DL, CDL, and Instruction Permit)
  • D27 – Violate limited license conditions
  • D29 – Violate restrictions of driver license (includes DL, CDL, and Instruction Permit)
  • D35 – Failure to comply with financial responsibility law
  • D36 – Failure to maintain required liability insurance
  • D37 – Failure to pay for damages or make installment payment
  • D38 – Failure to post security or obtain release from liability
  • D39 – Unsatisfied judgment
  • D45 – Failure to appear for trial or court appearance
  • D51 – Failure to make required payment of child support
  • D53 – Failure to make required payment of fine and costs (detail sometimes required)
  • D56 – Failure to answer a citation, pay fines, penalties and/or costs related to the original violation (detail sometimes required)
  • D70 – Driver’s view obstructed
  • D72 – Inability to control vehicle
  • D74 – Operating a motor vehicle improperly because of drowsiness
  • D75 – Operating a motor vehicle improperly due to physical or mental disability
  • D78 – Perjury about the operation of a motor vehicle
  • E01 – Operating without equipment as required by law
  • E02 – Operating without brakes as required by law
  • E03 – Operating without HAZMAT safety equipment as required by law
  • E04 – Operating without HAZMAT placards/markings as required by law
  • E05 – Operating without lights as required by law
  • E06 – Operating without school bus equipment as required by law
  • E23 – Use of radar or laser detector prohibited by law
  • E31 – Defective brakes
  • E33 – Defective HAZMAT safety devices
  • E34 – Defective lights
  • E36 – Defective school bus equipment
  • E37 – Defective tires
  • E50 – Failure to use equipment as required
  • E51 – Failure to use brakes
  • E53 – Failure to use HAZMAT safety devices as required
  • E54 – Failure to use headlight dimmer as required
  • E55 – Failure to use lights as required
  • E56 – Failure to use school bus safety equipment as required
  • E57 – Failure to use snow tires or chains as required
  • E70 – Equipment used improperly or obstructed
  • E71 – Brakes used improperly
  • F02 – Child or youth restraint not used properly as required
  • F03 – Motorcycle safety equipment not used properly as required
  • F04 – Seat belt not used properly as required
  • F05 – Carrying unsecured passengers in open area of vehicle
  • F06 – Improper operation of or riding on a motorcycle
  • F34 – Stopping, standing, or parking: obstructing or impeding traffic
  • F66 – Unsafe condition of vehicle (no specified component)
  • M02 – Failure to obey barrier
  • M03 – Failure to obey construction or maintenance zone markers
  • M04 – Failure to obey flagger
  • M05 – Failure to obey lane markings or signal
  • M08 – Failure to obey police or peace officer
  • M09 – For all drivers, failure to obey railroad-highway grade crossing restrictions not specifically noted in other railroad-highway grade crossing related codes.
  • M10 – For all drivers, failure to obey a traffic control device or the directions of an enforcement official at a railroad-highway grade crossing.
  • M11 – Failure to obey restricted lane
  • M12 – Failure to obey safety zone
  • M13 – Failure to obey school crossing guard
  • M14 – Failure to obey sign or traffic control device
  • M15 – Failure to obey stop sign
  • M16 – Failure to obey traffic signal or light
  • M17 – Failure to obey traffic sign
  • M18 – Failure to obey warning light or flasher
  • M19 – Failure to obey yield sign
  • M20 – For drivers who are not required to always stop, failure to slow down at a railroad highway grade crossing and check that tracks are clear of approaching train.
  • M21 – For drivers who are not required to always stop, failure to stop before reaching tracks at a railroad-highway grade crossing when the tracks are not clear.
  • M22 – For drivers who are always required to stop, failure to stop as required before driving onto railroad-highway grade crossing.
  • M23 – For all drivers, failing to have sufficient space to drive completely through the railroad-highway grade crossing without stopping.
  • M24 – For all drivers, failing to negotiate a railroad-highway grade crossing because of insufficient undercarriage clearance.
  • M25 – Failure to stop – basic rule at unsigned intersection or when entering roadway from private driveway, alley, etc.
  • M30 – Following improperly
  • M31 – Failure to leave sufficient distance for overtaking by other vehicles
  • M32 – Following emergency vehicle unlawfully
  • M33 – Following fire equipment unlawfully
  • M34 – Following too closely
  • M40 – Improper lane or location
  • M41 – Failure to keep in proper lane
  • M42 – Improper or erratic (unsafe) lane changes
  • M43 – Ran off road
  • M44 – Improper lane or location – crossover
  • M45 – Improper lane or location – crosswalk
  • M46 – Improper lane or location – entrance/exit ramp or way
  • M47 – Improper lane or location – in bicycle lane
  • M48 – Improper lane or location – in occupied lane
  • M49 – Improper lane or location – in HOV or restricted lane
  • M50 – Improper lane or location – limited access highway
  • M51 – Improper lane or location – median
  • M55 – Improper lane or location – on rail or streetcar tracks
  • M56 – Improper lane or location – on fire hose
  • M57 – Improper lane or location – oncoming traffic lane
  • M58 – Improper lane or location – road shoulder, ditch or sidewalk
  • M60 – Improper lane or location – slower vehicle lane
  • M61 – Improper lane or location – straddling center line(s)
  • M62 – Improper lane or location – traveling in turn (or center) lane
  • M70 – Improper passing
  • M71 – Passing in violation of posted sign or pavement marking
  • M72 – Passing in violation of opposite directions restriction
  • M73 – Passing on wrong side
  • M74 – Passing on hill or curve
  • M75 – Passing school bus displaying warning not to pass
  • M76 – Passing where prohibited
  • M77 – Passing with insufficient distance or visibility
  • M80 – Reckless, careless, or negligent driving
  • M81 – Careless driving
  • M82 – Inattentive driving
  • M83 – Negligent driving
  • M84 – Reckless driving
  • N01 – Failure to yield right of way (FTY ROW)
  • N02 – FTY ROW to animal rider or animal-drawn vehicle
  • N03 – FTY ROW to cyclist
  • N04 – FTY ROW to emergency vehicle (i.e. ambulance, fire equipment, police, etc.)
  • N05 – FTY ROW to funeral procession, procession or parade
  • N06 – FTY ROW to other vehicle
  • N07 – FTY ROW to overtaking vehicle
  • N08 – FTY ROW to pedestrian (includes handicapped or blind)
  • N09 – FTY ROW to school bus
  • N20 – FTY ROW at crosswalk
  • N21 – FTY ROW at rotary
  • N22 – FTY ROW at stop sign
  • N23 – FTY ROW at traffic sign
  • N24 – FTY ROW at traffic signal
  • N25 – FTY ROW at unsigned intersection
  • N26 – FTY ROW at yield sign
  • N30 – FTY ROW when warning displayed on other vehicle
  • N31 – FTY ROW when turning
  • N40 – Failure to use or improper signal
  • N41 – Failure to cancel directional signals
  • N42 – Failure to signal intention to pass
  • N43 – Failure to signal lane change or turn
  • N44 – Giving wrong signal
  • N50 – Improper turn
  • N51 – Improper method of turning
  • N52 – Improper position for turning
  • N53 – Making improper left turn
  • N54 – Making improper right turn
  • N55 – Making improper turn around (not U turn)
  • N56 – Making improper U turn
  • N60 – Driving wrong way
  • N61 – Driving wrong way at rotary intersection
  • N62 – Driving wrong way on divided highway
  • N63 – Driving wrong way on one way street or road
  • N70 – Driving on wrong side
  • N71 – Driving on wrong side of divided highway
  • N72 – Driving on wrong side of undivided street or road
  • N80 – Coasting (operating with gears disengaged)
  • N82 – Improper backing
  • N83 – Improper starting
  • N84 – Unsafe operation
  • S01 – 01-05 > Speed limit (detail optional)
  • S06 – 06-10 > Speed limit (detail optional)
  • S15 – Speeding 15 mph or more above speed limit (detail optional)
  • S16 – 16-20 > Speed limit (detail optional)
  • S21 – 21-25 > Speed limit (detail optional)
  • S26 – 26-30 > Speed limit (detail optional)
  • S31 – 31-35 > Speed limit (detail optional)
  • S36 – 36-40 > Speed limit (detail optional)
  • S41 – 41+ > Speed limit (detail optional)
  • S51 – 01-10 > Speed limit (detail optional)
  • S71 – 21-30 > Speed limit (detail optional)
  • S81 – 31-40 > Speed limit (detail optional)
  • S91 – 41+ > Speed limit (detail optional)
  • S92 – Speeding – Speed limit and actual speed (detail required)
  • S93 – Speeding
  • S94 – Prima Facie speed violation or driving too fast for conditions
  • S95 – Speed contest (racing) on road open to traffic
  • S96 – Speed less than minimum
  • S97 – Operating at erratic or suddenly changing speeds
  • S98 – Speeding on freeway (“wasting fuel”)
  • U01 – Fleeing or evading police or roadblock
  • U02 – Resisting arrest
  • U03 – Using a motor vehicle in connection with a felony (not traffic offense)
  • U04 – Using a motor vehicle in connection with a misdemeanor (not traffic offense)
  • U05 – Using a motor vehicle to aid and abet a felon
  • U06 – Vehicular assault
  • U07 – Vehicular homicide
  • U08 – Vehicular manslaughter
  • U09 – Negligent homicide while operating a CMV
  • U10 – Causing a fatality through the negligent operation of a CMV
  • U21 – Illegal operation of emergency vehicle
  • U31 – Violation resulting in fatal accident
  • * – Withdrawal resulting from one designated conviction-
  • W00 – Withdrawal, Non-ACD violation
  • W01 – Accumulation of convictions (including point systems and/or being judged a habitual offender or violator)
  • W09 – Failure to surrender HAZMAT endorsement as required by the USA PATRIOT Act
  • W13 – Parental consent withdrawn
  • W14 – Physical or mental disability
  • W15 – Physicians’ or specialists’ report recommended
  • W20 – Unable to pass DL test(s) or meet qualifications
  • W30 – Two serious violations within three years
  • W31 – Three serious violations within three years
  • W40 – The accumulation of two or more major offenses
  • W41 – An additional major offense after reinstatement
  • W50 – The accumulation of two out-of-service order general violations (violations not covered by W51) within ten years
  • W51 – The second out-of-service order violations within ten years while transporting 16 or more passengers, including the driver and/or transporting hazardous materials that require a placard
  • W52 – The accumulation of three or more out-of-service order violations within ten years
  • W60 – The accumulation of two RRGC violations within three years
  • W61 – The accumulation of three or more RRGC violations within three years
  • W70 – Imminent hazard