Miscellaneous Identifying Numbers

The appropriate two-letter identifying code must precede the number and is separated from the number by a hyphen (-).  Any alphabetic character(s) which is part of the number is to be included, except as noted in the following.

U.S. military services are now using Social Security numbers to identify military personnel.  This use applies to active duty, reserve and retired service personnel.  This number should be entered in both the Miscellaneous Number and Social Security Number fields.  If a member of the Army National Guard has a social security number of 420-19-0210, it should be entered at 420190210 in the Social Security field and as AS-410190210 in the Miscellaneous Number field.

Miscellaneous Number Type	Code
Air Force Serial Number	AF
Air National Guard Serial Number	AS
Alien Registration Number	AR
Army Serial Number	AS
Canadian Social Insurance Number	CI
Driver License Number*	DL
Marine Corps Serial Number	MC
Mariner's Document or Identification	MD
National Guard Serial Number	AS
Navy Serial Number	NS
Originating Agency, Police or Identification Number	OA
Passport Number	PP
Personal Identification (state-issued only)	PI
Port Security Card Number	PS
Royal Canadian Mounted Police Identification or Fingerprint Section Number	MP
Selective Service Number	SS
Coast Guard Serial Number	CG
Veterans Administration Claim Number	VA