A
AAMVAnet- American Association of Motor Vehicle Administrators (AAMVA) data communications network
ACD – AAMVA Code Dictionary
ACS – Access Control Server
Acct – Account
AIM – Accident Involvement Measure
AMD – Accounts Management Database
Amt – Amount
App – Application
ARF – Accounts Request Form
ASCII – American Standard Code for Information Interchange
Aspen – An application that officers use to enter commercial driver/vehicle roadside inspection details
ATM – Asynchronous Transfer Mode
Attn – Attention
Auth – Authority
A & I – Analysis and Information Online – FMCSA