STATE GOVERNMENT The SG and SGX prefixes were first used in 1926.
At this time, municipal, county, and state government became unique types.
1926-1938

1926693
New Jersey State Government License Plate

1927
New Jersey State Government License Plate

1928Ron Leach
New Jersey State Government License Plate

1927
New Jersey State Government License Plate

1929Lee Madigan
New Jersey State Government License Plate

1931Lee Madigan
New Jersey State Government License Plate

1932
New Jersey State Government License Plate

1933Lee Madigan
New Jersey State Government License Plate

1934 COMMERCIALLee Madigan
New Jersey State Government Commercial License Plate

1935Ron Hepkin
New Jersey State Government License Plate

1936
New Jersey State Government License Plate

1938Leib Brothers
New Jersey State Government License Plate

1939-1958

1939Leib Brothers
New Jersey State Government License Plate

1947
New Jersey State Government License Plate

1948
New Jersey State Government License Plate

1948 COMMERCIAL
New Jersey State Government Commercial License Plate

1949Leib Brothers
New Jersey State Government License Plate

1950
New Jersey State Government License Plate

1951Leib Brothers
New Jersey State Government License Plate

1952/56
New Jersey State Government License Plate

1952/56Leib Brothers
New Jersey State Government License Plate

1952/56 COMMERCIALRoss Day
New Jersey State Government Commercial License Plate

1952/56 COMMERCIAL
New Jersey State Government Commercial License Plate

1959/1977 BASESG-A100 - SG-S999

1959 David Doernberg
New Jersey State Government License Plate

1959 BASE
New Jersey State Government License Plate

1959 BASEJeff Fazekas
New Jersey State Government License Plate

1959 BASEDonna Otto
New Jersey State Government License Plate

1959 BASE
New Jersey State Government License Plate

1959 BASE
New Jersey State Government License Plate

1959 BASE
New Jersey State Government License Plate

1959 BASE
New Jersey State Government License Plate


The cutoff between the 1959 (N.J.) base and the 1977 (NEW JERSEY) base is unknown.
A good guess is that the '59 base stopped at SG-R, SG-S was on the '77 base, and SG-T started the '79 base.

1977 BASEREMAKE
New Jersey State Government License Plate

1977 BASEREMAKEJohn Willard
New Jersey State Government License Plate

1977 BASEJeff Fazekas
New Jersey State Government License Plate

1979 BASESG-T100 - SG-Z999
SG-B10A(?) - SG-N99Z

1979 BASEREMAKE
New Jersey State Government License Plate

1979
New Jersey State Government License Plate

c.1981plates.2gat123.com
New Jersey State Government License Plate

c.1983Joe Wasielewski
New Jersey State Government License Plate

c.1984
New Jersey State Government License Plate


1979 HANDICAPPED
Mike Wiener
New Jersey State Government License Plate

c.1985Jeff Fazekas
New Jersey State Government License Plate

c.1990
New Jersey State Government License Plate

c.1990
New Jersey State Government License Plate

c.1991
New Jersey State Government License Plate

1992 BASESG-P10A - SG-R???

1992 Paul Bagnarol
New Jersey State Government License Plate

1992Lee Madigan
New Jersey State Government License Plate

1993
New Jersey State Government License Plate

1993Misplaced Map
New Jersey State Government License Plate

1993plates.2gat123.com
New Jersey State Government License Plate

1993
New Jersey State Government License Plate

1993
New Jersey State Government License Plate

1993 BASESG10000 - SG22999(?)

1993
New Jersey State Government License Plate

1993Lee Madigan
New Jersey State Government License Plate

1994Joe Wasielewski
New Jersey State Government License Plate

1994
New Jersey State Government License Plate

c.1999
New Jersey State Government License Plate

2003
New Jersey State Government License Plate

2003
New Jersey State Government License Plate

AVERY BASE
3M2 BASE
SG23000(?) - SG30999(?)

2004Jeff Fazekas
New Jersey State Government License Plate

2005
New Jersey State Government License Plate

c.2006
New Jersey State Government License Plate

c.2009
New Jersey State Government License Plate

c.2011
New Jersey State Government License Plate

2012
New Jersey State Government License Plate

HELIX BASE   SG31000(?) - SG35499(?)

2013
New Jersey State Government License Plate

2013plates.2gat123.com
New Jersey State Government License Plate

2013
New Jersey State Government License Plate

2014
New Jersey State Government License Plate

2015
New Jersey State Government License Plate

2016Steve Salit
New Jersey State Government License Plate

2014 FLAT BASESG35500(?) -

Flat state government plates first appeared in early 2016.

2016
New Jersey State Government License Plate

2016
New Jersey State Government License Plate

2017policecarwebsite.net
via Joe Pugliese

New Jersey State Government License Plate