AAMVA Code Dictionary (ACD)

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.

The AAMVA ACD manual provides information about the business rules for using the ACD code set in the State Pointer Exchange Services (SPEXS) and in the Problem Driver Pointer System (PDPS). The manual also lists all ACD codes with corresponding descriptions and abbreviations as approved by AAMVA and implemented by each state driver licensing agency in the jurisdictions.

Program Leadership


The ACD is supported by the ACD Subcommittee (formerly Working Group), who examines and updates the dictionary set of codes used nationwide by driver licensing authorities. To learn more about the group, visit the ACD Subcommittee page.

Webinars and Training


AAMVA offers informational webinars and training courses related to the ACD. Visit our Webinars and Training page to see all systems learning opportunities or here to see a prefiltered list for ACD.

Documentation


ACD documentation is available below.

file - 03/07/2022

Change Proposal ACD009: ACD Code A60 and A61 Usage

Approved change proposal to include a new section on the usage of ACD codes A60 and A61.

file - 03/01/2022

AAMVA Code Dictionary Manual 5.2.4

Provides information on the business rules for the ACD code set used by AAMVA’s Commercial Driver’s License Information System (CDLIS), State Pointer Exchange Services (SPEXS), and Problem Driver Pointer System (PDPS).

file - 02/10/2022

CDLIS Change Proposal 236: Update Rules for the W00 ACD Code 6.0.3

Approved change proposal to update the usage rules of ACD code W00 in the manual.

file - 02/10/2022

Change Proposal ACD013: Add ACD Codes A04 and A94 to Table 3

Approved change proposal to modify table 3 of the ACD manual.

file - 02/10/2022

Change Proposal ACD014: FTA, FTC and FTP ACD Codes Updates

Approved change proposal to modify the usage rules of ACD codes related to FTA/FTC/FTP violations.

file - 02/10/2022

Change Proposal ACD015: Allow Certain Withdrawal ACDs to Be Sent as Out-of-State Withdrawals

Approved share proposal to allow the inclusion of ACD codes W45, W80, and W81 to be included when reporting out-of-state withdrawals.

file - 02/10/2022

Change Proposal ACD016: Update W31 Code Use Description

Approved change proposal to update the description of ACD code W31.

file - 02/10/2022

Change Proposal ACD017: Change Term Accident by Crash in ACD Manuals

Approved change proposal to replace the word “Accident” for the word “Crash” throughout the ACD manual.

file - 02/10/2022

Change Proposal ACD021: List ACD Codes That Require CMV Indicator Equal 1

Approved change proposal to include a new table listing all the ACD codes that may only be used if the driver is operating a commercial motor vehicle.

For questions or more information about ACD, please contact us and select Technology Standards from the drop-down menu of subjects.

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