D20 Maintenance Procedures

This Standard is the product of a dynamic environment and it is expected that improvements to the Standard may be necessary on a regular basis.

The terminology and codes used in the D20 dictionary come from many sources. Whenever possible definitions from other standards, practices and rules are used to maintain consistency.

Most requests to enhance D20, originate from Motor Vehicle Agency systems, because the D20 data definitions are used in the exchange of data between these systems. Within these systems the changes are often driven by federal mandates or come from the Working-group responsible for overseeing these systems.

However, D20 is an open standard, therefore any interested party may submit a request to update D20. Requests should be emailed to AAMVA Enterprise Architecture (EnterpriseArchitecture@aamva.org).

D20 was established with the goal of promoting uniformity in the exchange of records by motor vehicle agencies. This goal provides direction on which data elements fall in the scope of D20. Today the areas covered by D20 include:

• Motor Vehicle Registration and Titling
• Driver and Commercial Drivers Licensing
• Motor Vehicle Inspection
• Motor Vehicle Insurance

FYI: When necessary the scope of D20 can be changed. Originally D20 also included the following, but the maintenance of these areas was turned over to groups who actively worked in these areas and could manage their updates:

• Traffic Law Enforcement
• Highway Inventory and Traffic
• Crashes and Emergency Medical Services