| MMUCC Element |
Air Bag Deployed
Deployment status of an air bag relative to the position in the vehicle for this occupant. Refer to Appendix M for a diagram of air bag types.
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Alcohol Test
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Bus Use
This element describes the common type of bus service this vehicle was being used as at the time of the crash. Buses are any motor vehicle with seats to transport nine (9) or more people, including the driver’s seat. This element does not include vans which are owned and operated for personal use. Refer to the Glossary for attribute definitions.
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Cargo Body Type**
The type of body for buses and trucks more than 10,000 lbs GVWR. (Refer to Appendix K for chart displaying types of cargo body types.)
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Case Identifier
The unique identifier within a given year that identifies a given crash within a State.
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Condition at Time of Crash
Any relevant condition of the individual (motorist or non-motorist) that is directly related to the crash.
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Contributing Circumstances, Environment
Apparent environmental conditions which may have contributed to the crash.
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Contributing Circumstances, Motor Vehicle
Pre-existing motor vehicle defects or maintenance conditions that may have contributed to the crash.
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Contributing Circumstances, Road
Apparent condition of the road which may have contributed to the crash.
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Crash City/Place (political jurisdiction)
The city/place (political jurisdiction) in which the crash occurred.
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Crash Classification
Subfield 1 of this element is used to identify ownership of the land where the crash occurred. Subfield 2 of this element is used to identify the characteristics of the crash with respect to its location on or off a trafficway. Refer to Appendix E Diagram of the Trafficway.
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Crash County
The county or equivalent entity in which the crash physically occurred.
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Crash Date and Time
The date (year, month, and day) and time (00:00-23:59) at which the crash occurred.
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Crash Location
The exact location on the roadway to document where the first harmful event of the crash occurred.
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Date of Birth
The year, month, and day of birth, (or age to be used only when date of birth cannot
be obtained), of the person involved in a crash.
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Direction of Travel Before Crash
The direction of a motor vehicle’s travel on the roadway before the crash. Notice that this is not a compass direction, but a direction consistent with the designated direction of the road. For example, the direction of a State-designated North-South highway must be either northbound or southbound even though a motor vehicle may have been traveling due east as a result of a short segment of the highway having an east-west orientation.
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Driver Actions at Time of Crash
The actions by the driver that may have contributed to the crash. This data element is based on the judgment of the law enforcement officer investigating the crash and need not match Violation Codes (P15).
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Driver Distracted By
Distractions which may have influenced the driver performance. The distractions can be inside the motor vehicle (internal) or outside the motor vehicle (external).
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Driver License Jurisdiction
The geographic or political entity issuing a driver license. Includes the States of the United States (including the District of Columbia and outlying areas), Indian Nations, U.S. Government, Canadian Provinces, and Mexican States (including the Distrito Federal), as well as other jurisdictions.
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Driver License Number, Class, CDL and Endorsements**
A unique set of alphanumeric characters assigned by the authorizing agent issuing a driver license to the individual.
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Drug Test
Indication of the presence of drug test, type, and result. Excludes drugs administered post-crash. See Drug Test Result (PL3) to document drug name.
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Ejection
Occupant completely or partially thrown from the interior of the motor vehicle, excluding motorcycles, as a result of a crash.
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Emergency Motor Vehicle Use
Indicates operation of any motor vehicle that is legally authorized by a government authority to respond to emergencies with or without the use of emergency warning equipment, such as a police vehicle, fire truck, or ambulance while actually engaged in such response.
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First Harmful Event
The first injury or damage-producing event that characterizes the crash type.
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Gross Vehicle Weight Rating / Gross Combination Weight Rating**
The Gross Vehicle Weight Rating (GVWR) is the amount recommended by the manufacturer as the upper limit to the operational weight for a motor vehicle and any cargo (human or other) to be carried. The Gross Combination Weight Rating (GCWR) is the sum of all GVWRs for each unit in a combination unit motor vehicle. Thus for single-unit trucks there is no difference between the GVWR and the GCWR. For combination trucks (truck tractors pulling a single semi-trailer, truck tractors pulling double or triple trailers, trucks pulling trailers, and trucks pulling other motor vehicles) the GCWR is the total of the GVWRs of all units in the combination.
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Hazardous Materials (Cargo Only)**
Indication of whether or not the motor vehicle had a hazardous materials placard as required by Federal/State regulations, and whether or not hazardous materials were released. (Refer to Appendix K for chart displaying hazardous materials classes and reporting information.)
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Hit and Run
Refers to cases where the vehicle or the driver of the vehicle in transport is a contact vehicle in the crash and departs the scene without stopping to render aid or report the crash.
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Injury Status
The injury severity level for a person Involved in a crash. The determination of which
attribute to assign should be based on the latest information available at the time the
report is completed, except as described below for fatal Injuries.
IMPORTANT NOTE: Some attribute names and definitions have changed from the 3rd Edition of MMUCC even though the “KABCO” acronym remains. Most notably, “Suspected Serious Injury” (A) has replaced “Incapacitating Injury” and “Suspected Minor Injury” (B) has replaced “Non-incapacitating Injury.”
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Law Enforcement Suspects Alcohol Use
Driver or non-motorist involved in the crash suspected by law enforcement to have used alcohol.
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Law Enforcement Suspects Drug Use
Driver or non-motorist involved in the crash suspected by law enforcement to have used drugs.
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Light Condition
The type/level of light that existed at the time of the motor vehicle crash.
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Location of First Harmful Event Relative to the Trafficway
The location of the first harmful event as it relates to its position within or outside the trafficway. See Appendix E for a diagram of the trafficway.
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Manner of Crash / Collision Impact
The identification of the manner in which two motor vehicles in transport initially came together without regard to the direction of force. This data element refers only to crashes where the first harmful event involves a collision between two motor vehicles in transport. See Appendix F for a diagram of the manner of collision.
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Most Harmful Event for this Motor Vehicle
Event that resulted in the most severe injury or, if no injury, the greatest property damage involving this motor vehicle.
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Motor Carrier Identification**
The identification number, name and address of an individual, partnership or corporation responsible for the transportation of persons or property as indicated on the shipping manifest.
NOTE: The companies and carriers shown in any photographs on this site are included for illustrative purposes only. These images in NO WAY indicate or imply unsafe or improper operating practices by those pictured.
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Motor Vehicle Body Type Category
The category indicating the general configuration or shape of a motor vehicle distinguished by characteristics such as number of doors, rows of seats, windows, or roof line. Personal conveyances – such as skateboards, motorized toy cars, and wheelchairs are not considered motor vehicles.
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Motor Vehicle License Plate Number
The alphanumeric identifier or other characters, exactly as displayed, on the registration plate or tag affixed to the motor vehicle. For combination trucks, motor vehicle plate number is obtained from the power unit or tractor.
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Motor Vehicle Make
The distinctive (coded) name applied to a group of motor vehicles by a manufacturer.
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Motor Vehicle Maneuver/Action
The controlled maneuver for this motor vehicle prior to the beginning of the sequence of events.
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Motor Vehicle Model
The manufacturer-assigned code denoting a family of motor vehicles (within a make) that have a degree of similarity in construction, such as body, chassis, etc.
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Motor Vehicle Model Year
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Motor Vehicle Posted/Statutory Speed Limit
The posted/statutory speed limit for the motor vehicle at the time of the crash. The authorization may be indicated by the posted speed limit, blinking sign at construction zones, etc.
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Motor Vehicle Registration State and Year
The State, commonwealth, territory, Indian nation, U.S. Government, foreign country, etc., issuing the registration plate and the year of registration as indicated on the registration plate displayed on the motor vehicle. For foreign countries, MMUCC requires only the name of the country. Border States may want to collect the name of individual Canadian Provinces or Mexican states. Refer to Appendix D.
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Motor Vehicle Unit Type and Number
Motor vehicle unit type and number assigned to uniquely identify each motor vehicle involved in the crash. This number is not assigned to pedestrians or bicyclists. (See Non-Motorist Number (P22).)
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Name of Person Involved
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Non-Motorist Action/Circumstance Prior to Crash
The action of the non-motorist immediately prior to the crash and an indication of whether the non-motorist was walking/cycling to/from school.
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Non-Motorist Actions/Circumstances at Time of Crash
The actions/circumstances of the non-motorist that may have contributed to the crash. This data element is based on the judgment of the law enforcement officer investigating the crash.
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Non-Motorist Location at Time of Crash
The location of the non-motorist with respect to the roadway at the time of crash.
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Non-Motorist Number
The unique number assigned to the non-motorist involved in the crash.
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Non-Motorist Safety Equipment
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Occupant's Motor Vehicle Unit Number
The unique number assigned for this crash to the motor vehicle in which this person was an occupant. Persons ejected or who fall from a vehicle are still considered occupants.
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Person Type
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Relation to Junction
The coding of this data element is based on the location of the first harmful event of the crash. It identifies the crash's location with respect to presence in a junction or proximity to components typically in junction or interchange areas. See Appendices G and H.
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Restraint Systems / Motorcycle Helmet Use
The restraint equipment in use by the occupant, or the helmet use by a motorcyclist, at the time of the crash.
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Roadway Alignment and Grade
The geometric or layout and inclination characteristics of the roadway in the direction of travel for this vehicle.
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Roadway Surface Condition
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School Bus-Related
Indicates whether a school bus or motor vehicle functioning as a school bus for a school-related purpose is involved in the crash. The “school bus,” with or without a passenger on board, must be directly involved as a contact motor vehicle or indirectly involved as a non-contact motor vehicle (children struck when boarding or alighting from the school bus, two vehicles colliding as the result of the stopped school bus, etc.).
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Seating Position
The location for this occupant in, on, or outside of the motor vehicle prior to the first event in the sequence of events. Refer to Appendix N for diagram of common vehicle types, to include ambulance seating/positioning.
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Sequence of Events
The events in sequence related to this motor vehicle, including both non-collision as well as collision events. For examples, refer to Appendix L.
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Sex
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Source of Information
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Special Function of Motor Vehicle in Transport
The type of special function being served by this vehicle regardless of whether the function is marked on the vehicle.
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Speeding Related
Indication of whether the investigating officer suspects that the driver involved in the crash was speeding based on verbal or physical evidence and not on speculation alone.
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Total Lanes in Roadway
Total number of lanes in the roadway on which this motor vehicle was traveling.
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Total Occupants in Motor Vehicle
The total number of injured and uninjured occupants in this motor vehicle involved in the crash, including persons in or on the motor vehicle at the time of the crash.
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Towed Due to Disabling Damage
Disabling damage implies damage to the motor vehicle that is sufficient to require the motor vehicle to be towed or carried from the scene. Towed Due to Disabling Damage identifies if a vehicle involved in a crash is removed from the scene due to damage incurred. Towing assistance without removal of the vehicle from the scene, such as pulling a vehicle out of a ditch, is not considered to be “towed” for the purposes of this element.
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Traffic Control Device Type
The type of traffic control device (TCD) applicable to this motor vehicle at the crash location.
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Trafficway Description
Indication of whether or not the trafficway for this vehicle is divided and whether it serves one-way or two-way traffic. A divided trafficway is one on which roadways for travel in opposite directions are physically separated by a median. See Appendix E for diagram of the trafficway.
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Transported to First Medical Facility By
Type and identity of unit providing transport to the first medical facility receiving the patient.
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Type of Intersection
An intersection consists of two or more roadways that intersect at the same level. See Appendix H for a diagram of the intersection.
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Unit Number of Motor Vehicle Striking Non-Motorist
Number assigned to identify the motor vehicle that struck the non-motorist in the crash.
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Vehicle Configuration**
Indicates the general configuration of this motor vehicle. (Refer to Appendix K for a chart displaying types of truck configurations.)
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Vehicle Damage
Subfield 1 of this element is intended to collect the approximate contact point on this vehicle associated with this vehicle’s initial harmful event. If the initial harmful event does not involve a collision, then code “Non-Collision” (refer to glossary). Subfield 2 identifies all areas damaged on the vehicle as a result of this crash. Subfield 3 identifies the extent to which the damage affects the vehicle’s operability rather than the cost to repair.
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Vehicle Identification Number (VIN)
A unique combination of alphanumeric or numeric characters assigned to a specific motor vehicle that is designated by the manufacturer.
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Violation Codes
All motor vehicle-related violation codes, if any, which apply to this driver.
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Weather Conditions
The prevailing atmospheric conditions that existed at the time of the crash.
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Work Zone - Related (Construction/Maintenance/Utility)
A crash that occurs in or related to a construction, maintenance, or utility work zone, whether or not workers were actually present at the time of the crash. 'Work zone-related' crashes may also include those involving motor vehicles slowed or stopped because of the work zone, even if the first harmful event occurred before the first warning sign. See Appendix I for a diagram of the work zone area.
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