6.3Address Within United States
Mail addressed to military personnel within the United States must show the name of the military installation, state, and either the correct ZIP Code or ZIP+4 code. In addition:
a. Mail addressed to Army personnel must show full name, including first name and middle name or initial, and organization.
b. Mail addressed to Air Force personnel must show full name, including first name and middle name or initial, organization, and box number (if served by a PSC).
c. Mail addressed to Navy and Marine Corps personnel must show full name, including first name and middle name or initial, and organization.
d. Mail sent to dependents of military personnel for delivery through the sponsor?s military unit must be addressed in care of the sponsor.
e. Mail sent to dependents of military personnel for delivery at the sponsor?s military quarters need not be addressed in care of the sponsor.