1950s-1960s
1 = Dept. of the Interior

Government / ICC = Interstate Commerce Commission

Till 2001
G10 = Unknown agency code
( Probably a first generation series for midsize sedans ).

Till 2001
G = Interagency Motor Pool System
11 = Midsize sedan

Till 2001
G = Interagency Motor Pool System
12 = Compact sedan

Till 2001
G = Interagency Motor Pool System
13 = Subcompact Sedan

Till 2001
G = Interagency Motor Pool System
19 = Unknown Code

Till 2001
G = Interagency Motor Pool System
21 = Compact station wagon

Till 2001
G = Interagency Motor Pool System
33 = Busses

Till 2001
G = Interagency Motor Pool System
40 = Less than 1/2 ton truck

Till 2001
G = Interagency Motor Pool System
41 = 1/2 ton truck

Till 2001
G = Interagency Motor Pool System
41 = 1/2 ton truck

Till 2001
G = Interagency Motor Pool System
42 = 3/4 ton truck

Till 2001
Government
G = Interagency Motor Pool System
43 - 1 ton truck

Till 2001
G = Interagency Motor Pool System
51 = Unknown Code

Till 2001
G = Interagency Motor Pool System
60 = Less than 1/2 ton truck

Till 2001
G = Interagency Motor Pool System
61 = 1/2 ton truck

Till 2001
G = Interagency Motor Pool System
62 = 3/4 ton truck

Till 2001
G = Interagency Motor Pool System
63 = 1 ton truck

Till 2001
G = Interagency Motor Pool System
71 = Medium truck

Government / DOT = Department of Transportation

Till 2001
Government / A = Department of Agriculture

CSA = Cognizant Security Agency or Combat Support Agency

Government / HHS = Department of Health and Human Services

P = US Postal Service

USA Government
1970's
US Postal Service