Code

Miscellaneous Number

AF

Air Force Serial Number

AR

Alien Registration Number

AS

Air National Guard Serial Number

AS

Army Serial Number

AS

National Guard Serial Number

CG

U.S. Coast Guard Serial Number

CI

Canadian Social Insurance Number

DL

Driver License Number

MC

Marine Corps Serial Number

MD

Mariner's Document or Identification

MP

Royal Canadian Mounted Police Identification or Fingerprint Section Number

NS

Navy Serial Number

OA

Originating Agency, Police or Identification Number

PI

Personal Identification (state-issued only)

PP

Passport Number

PS

Port Security Card Number

SS

Selective Service Number

VA

Veterans Administration Claim Number