Wisconsin has issued an odd subclass of plates, which all use a common "Special" prefix then a suffix of some seemingly random letters. It is unknown what the significance of these letters is, if any. Each of these types correspond to a specific type of special vehicle registration, and many are quite rare.

This section will include the following plate types:

Special-UX


Special-UX plates have been issued since at least 1956. Special-UX plates are used for trucks and trailers with permanently mounted special equipment, qualifying for reduced-fee registrations.

Initially, from 1957 to 1959, at least some plates were issued in pairs; 1 pair is known for 1957 (UX 3744), 2 pairs are known for 1958, and one pair is known for 1959 (UX 3339). In 1960, pairs were discontinued and all plates were issued singly from that point onward. It currently isn't known if 1956 plates were also issued in pairs or not, since there is no documentation of these plates before 1957.

Interestingly, the only 1956 plate known has a "JUL" date as opposed to the normal "JUN" date that other plates in the state used.

Like other "insert" type plates that didn't receive insert tabs, a "DEC 62" sticker was issued on the 1962 base to extend the base from a fiscal year cycle to a calendar year cycle. Additionally, unlike almost all other types in the state, 74 base plates received "76" dated stickers when all other plate types were staggered between varying months of the year; trucks jumped from December 1975 to January 1977, while farm plates jumped from 1975 to February 1977, for example. Semi trailer plates issued a new base for 1976, however special-UX plates continued using the 74 base through 1977, and since they retained their December expiration cycle, they were issued "DEC 76" stickers. Interestingly enough, the 76 stickers are the same color as "77" dated stickers that were issued to every other non-passenger type at the time; this pattern continued through 1981.

Base Variation Ranges
56 UX 1133
57 UX 353
UX 3744
58 UX 4
UX 3948
59 UX 6
UX 4447
60 UX 663
UX 2177
61 UX 652
UX 3236
62 UX 1372
63 UX 601
UX 4704
64 UX 131
UX 947
65 UX 1184
UX 5326
67 UX 1104
UX 4698
70 UX 5476
UX 9856
74 UX 1127
UX 8921
78 5579 UX
1956 Wisconsin Special-UX
Cody James Corbett
1958 Wisconsin Special-UX
Gideon Nicksic
1959 Wisconsin Special-UX 3 Digit
Cody James Corbett
1959 Wisconsin Special-UX 4 Digit
Cody James Corbett
1960 Wisconsin Special-UX
Cody James Corbett
Dec 1962 Wisconsin Special-UX
Cody James Corbett
1963 Wisconsin Special-UX
Cody James Corbett
1964 Wisconsin Special-UX
Cody James Corbett
1965 Wisconsin Special-UX
Cody James Corbett
1966 Wisconsin Special-UX
Cody James Corbett
1967 Wisconsin Special-UX
Cody James Corbett
1968 Wisconsin Special-UX
Cody James Corbett
1969 Wisconsin Special-UX
Cody James Corbett
1975 Wisconsin Special-UX
Cody James Corbett
1977 Wisconsin Special-UX
Cody James Corbett
1979 Wisconsin Special-UX
Cody James Corbett

In 1980, special-UX plates gained weight class codes in their numbers like many other types at the time. It appears that weight classes for these plates used the same weight classes as heavy truck plates at the time, however DOT plate guides during the 1980s listed all vehicle weights below 20,000lbs. as receiving "EX" code special-UX plates. Guides from the 1990s show weights down to the "XX" code of 10,000lbs., so it's likely they used heavy truck weights and the earlier guides were inaccurate.

Base
Weight
Variation D
12,000
E
16,000
F
20,000
G
26,000
H
32,000
J
38,000
K
44,000
L
50,000
N
56,000
P
62,000
Q
68,000
R
73,000
S
76,000
T
80,000
80
EX 46
EX 508

GX 22

KX 26
KX 55

NX 20



TX 13
TX 16
82 DX 30 EX 403
EX 1025
FX 41
FX 319




LX 262


RX 81 SX 59 TX 133
TX 136
84
EX 120
EX 220

GX 133
GX 633

JX 161
LX 103 NX 138

RX 36 SX 22 TX 159
TX 313
86
EX 306
EX 818

GX 785






RX 2
RX 25


88
EX 38











90 DX 200
DX 230
EX 398 FX 588
HX 385


LX 71 NX 38




1990 Wisconsin Special-UX DX
Cody James Corbett
1991 Wisconsin Special-UX FX
Cody James Corbett

The M weight class was added in 1992. The X weight class has been seen in DMV plate guides in 2002, though it is unknown if these plates actually exist or not.

Base
Weight
Variation X
10,000
D
12,000
E
16,000
F
20,000
G
26,000
H
32,000
J
38,000
K
44,000
L
50,000
M
54,000
N
56,000
P
62,000
Q
68,000
R
73,000
S
76,000
T
80,000
92
DX 309 EX 547 FX 290 GX 749
HX 43









94 Wide Font

EX 1215 FX 1010
HX 1225


MX 1015


QX 1017

TX 1198
TX 1199
Narrow Font
Narrow Prefix
















Narrow Font
Wide Prefix




GX 2043











1992 Wisconsin Special-UX EX
Nick
1997 Wisconsin Special-UX FX
Cody James Corbett

Special-X


Special-X plates were allegedly started in 1956, but 1954 and 1955 plates have been confirmed. Special-X plates are issued to "special use" vehicles, like some buses, red cross vehicles, special vehicles in parades, and fire department vehicles.

Base Variation Ranges
54 129 X
55 69 X
142 X
56 100 X
198 X
57 204 X
448 X
58 105 X
419 X
59 170 X
594 X
60 445 X
61
62 491 X
63 503 X
64 340 X
2330 X
67 127 X
4960 X
70 231 X
10852 X
74 137 X
5218 X
78 13 X
1707 X
80 1338 X
82 1011 X
84 299 X
706 X
86 56 X
761 X
88 423 X
425 X

Beginning in 1989, plates were issued and revalidated on a 5 year cycle.

93 1 X
923 X
98 1026 X
1237 X
03 4006 SP
6362 SP
08 6401 SP
7845 SP
1955 Wisconsin Special-X
Cody James Corbett
1957 Wisconsin Special-X
Cody James Corbett
1958 Wisconsin Special-X
Cody James Corbett
1959 Wisconsin Special-X
Cody James Corbett
1960 Wisconsin Special-X
Cody James Corbett
1962 Wisconsin Special-X
Cody James Corbett
1963 Wisconsin Special-X
Cody James Corbett
1964 Wisconsin Special-X
Cody James Corbett
1965 Wisconsin Special-X
Cody James Corbett
1966 Wisconsin Special-X
Cody James Corbett
1967 Wisconsin Special-X
Cody James Corbett
1969 Wisconsin Special-X
Cody James Corbett
1970 Wisconsin Special-X
Cody James Corbett
1971 Wisconsin Special-X
Cody James Corbett
1972 Wisconsin Special-X
Cody James Corbett
1973 Wisconsin Special-X
Cody James Corbett
1974 Wisconsin Special-X
Cody James Corbett
1975 Wisconsin Special-X
Cody James Corbett
1977 Wisconsin Special-X
Cody James Corbett
1978 Wisconsin Special-X 2 Digit
Cody James Corbett
1978 Wisconsin Special-X 3 Digit
Cody James Corbett
1979 Wisconsin Special-X 4 Digit
Chris
1981 Wisconsin Special-X
Cody James Corbett
1983 Wisconsin Special-X
Cody James Corbett
1984 Wisconsin Special-X
Cody James Corbett
1985 Wisconsin Special-X
Cody James Corbett
1986 Wisconsin Special-X
Cody James Corbett
1988 Wisconsin Special-X
Cody James Corbett
1993 Wisconsin Special-X
Cody James Corbett
1998 Wisconsin Special-X
Cody James Corbett
2003 Wisconsin Special-X
Cody James Corbett
2008 Wisconsin Special-X
Cody James Corbett
2013 Wisconsin Special-X
Cody James Corbett
2018 Wisconsin Special-X
Cody James Corbett
2013 Wisconsin Special-X New Sheeting
Cody James Corbett
2018 Wisconsin Special-X New Sheeting
Cody James Corbett

Special-X Bus


Numbers started at 50001X apparently. The plates have been seen as early as 1979, and it is unknown when this series was discontinued.

Special-Z


Special-Z license plates were issued from at least 1960 to 2004. They were issued to certain seasonal equipment opearated empty, particularly excavating and carnival equipment in transit. Like special-UX plates, they received green "76" dated stickers while almost every other non-passenger plate type in the state either received "77" stickers, or was issued a new "76" base plate, therefore next to no plate types in the state other than regular passenger vehicles used a "76" dated sticker.

Base Variation Ranges
60 Z 40
61 Z 219
62
63 Z 235
64
65
67 Z 1128
Z 2823
70 Z 184
Z 4518
74 Z 197
Z 4513
78 1794 Z
4408 Z
1963 Wisconsin Special-Z
Cody James Corbett
1967 Wisconsin Special-Z
Cody James Corbett
1968 Wisconsin Special-Z
Cody James Corbett
1970 Wisconsin Special-Z
Cody James Corbett
1972 Wisconsin Special-Z
Cody James Corbett
1973 Wisconsin Special-Z
Cody James Corbett
1974 Wisconsin Special-Z
Cody James Corbett
1975 Wisconsin Speical-Z
Cody James Corbett
1976 Wisconsin Special-Z
Cody James Corbett
1978 Wisconsin Special-Z
Cody James Corbett
1978 Wisconsin Special-Z (1979 Weight Sticker)
Cody James Corbett
1979 Wisconsin Special-Z (1979 Weight Sticker)
Cody James Corbett

Like special-UX plates, weight classes were added to the serial in 1980. Beginning in 1989, an increasing number of plates were issued insert stickers as opposed to the normal-sized stickers they were supposed to be issued.

Base
Weight
Variation A
4,500
B
6,000
C
8,000
D
12,000
E
16,000
F
20,000
G
26,000
H
32,000
J
38,000
K
44,000
L
50,000
N
56,000
P
62,000
Q
68,000
R
73,000
S
76,000
T
80,000
80 AZ 25 BZ 56 CZ 326 DZ 20
DZ 421
EZ 238


HZ 153
HZ 193
JZ 4
JZ 59
KZ 67
KZ 143
LZ 32
LZ 75
NZ 18
NZ 97
PZ 2



82 BZ 123
DZ 16
DZ 533
EZ 45
EZ 330


HZ 92
HZ 222
JZ 2
JZ 174
KZ 139
LZ 4 NZ 71
NZ 81
PZ 7 QZ 5 RZ 15

TZ 33
84 AZ 37 BZ 150 CZ 519 DZ nn
DZ nn

FZ 491
HZ 62 JZ 88
JZ 147
KZ 88
KZ 93
LZ 104
LZ 119
NZ 58
NZ 78
PZ 101 QZ 83


86 BZ 41 CZ 142
EZ 404
FZ 333 GZ 484 HZ 264 JZ 130
JZ 145

LZ 138
LZ 159
NZ 78 PZ 82 QZ 84


88 AZ 38

EZ 18
FZ 631
HZ 258 JZ 153
JZ 162
KZ 106
KZ 171

NZ 57

RZ 113

90 AZ 29
DZ 1
DZ 10
EZ 144
FZ 94
FZ 348
GZ 170
JZ 78 KZ 4
KZ 52
LZ 236

QZ 87
QZ 142
RZ 80


1980 Wisconsin Special-Z 1 Digit
Cody James Corbett
1980 Wisconsin Special-Z 2 Digit
Cody James Corbett
1980 Wisconsin Special-Z 2 Digit Caption Centered
Cody James Corbett
1980 Wisconsin Special-Z 3 Digit
Gideon Nicksic
1980 Wisconsin Speical-Z
Cody James Corbett
1981 Wisconsin Special-Z
Cody James Corbett
1982 Wisconsin Special-Z 1 Digit
Cody James Corbett
1982 Wisconsin Special-Z 2 Digit
Cody James Corbett
1982 Wisconsin Special-Z HZ 3 Digit
Cody James Corbett
1984 Wisconsin Special-Z JZ
Cody James Corbett
1984 Wisconsin Special-Z FZ
Cody James Corbett
1984 Wisconsin Special-Z
Cody James Corbett
1984 Wisconsin Special-Z (truck sticker)
Cody James Corbett
1984 Wisconsin Special-Z NZ
Cody James Corbett
1986 Wiscosnin Special-Z QZ
Cody James Corbett
1987 Wisconsin Special-Z
Cody James Corbett
1988 Wisconsin Speical-Z NZ
Cody James Corbett
1988 Wisconsin Special-Z
Cody James Corbett
1989 Wisconsin Special-Z
Cody James Corbett
1989 Wisconsin Special-Z (insert sticker)
Cody James Corbett
1990 Wisconsin Special-Z AZ
Cody James Corbett
1990 Wisconsin Special-Z
Cody James Corbett
1991 Wisconsin Special-Z
Cody James Corbett

In 1992, the X and M weight classes were added. Around 2005, special-Z plates were discontinued, though plates remained valid through 2008.

Base
Weight
Variation A
4,500
B
6,000
C
8,000
X
10,000
D
12,000
E
16,000
F
20,000
G
26,000
H
32,000
J
38,000
K
44,000
L
50,000
M
54,000
N
56,000
P
62,000
Q
68,000
R
73,000
S
76,000
T
80,000
92 AZ 36 CZ 356
CZ 381
DZ 48
DZ 611
EZ 386 FZ 339
FZ 670
GZ 662

KZ 144 LZ 201 MZ 39 NZ 85
NZ 92
PZ 1
PZ 101
RZ 101
RZ 158

94 Wide Font CZ 1362 XZ 1201 DZ 1434
EZ 1214 FZ 1317

JZ 1096
LZ 1145
LZ 1163
MZ 1038 NZ 1013
NZ 1093
PZ 1005
PZ 1114
QZ 1086
QZ 1090
RZ 1010
RZ 1136
SZ 1098 TZ 1436
Narrow Font
Narrow Prefix
CZ 1531














Narrow Font
Wide Prefix


DZ 1822
DZ 2016
FZ 2195
FZ 2403


JZ 1555




PZ 1141
QZ 1152
QZ 1286
RZ 1177
RZ 1236

TZ 1743
TZ 2256
1992 Wisconsin Special-Z 1 Digit
Cody James Corbett
1992 Wisconsin Special-Z 2 Digit
Cody James Corbett
1992 Wisconsin Special-Z FZ
Cody James Corbett
1994 Wisconsin Special-Z Narrow Font Narrow Prefix CZ
Cody James Corbett
1994 Wisconsin Special-Z Wide Font DZ
Cody James Corbett
1994 Wisconsin Special-Z Narrow Font Wide Prefix DZ
Gideon Nicksic
1994 Wisconsin Special-Z Wide Font EZ
Cody James Corbett
1994 Wisconsin Special-Z Narrow Font Wide Prefix FZ
Cody James Corbett
1994 Wisconsin Special-Z Wide Font LZ
Cody James Corbett
1994 Wisconsin Special-Z Wide Font MZ
Cody James Corbett
1994 Wisconsin Special-Z Wide Font NZ
Cody James Corbett
1994 Wisconsin Special-Z Wide Font PZ
Cody James Corbett
1994 Wisconsin Special-Z Narrow Font Wide Prefix PZ
Cody James Corbett
1994 Wisconsin Special-Z Wide Font QZ
Cody James Corbett
1994 Wisconsin Special-Z Narrow Font Wide Prefix QZ
Cody James Corbett
1994 Wisconsin Special-Z Wide Font RZ
Cody James Corbett
1994 Wisconsin Special-Z Narrow Font Wide Prefix TZ
Cody James Corbett
1994 Wisconsin Special-Z
Cody James Corbett
1995 Wisconsin Special-Z
Cody James Corbett
1996 Wisconsin Special-Z
Cody James Corbett
1997 Wisconsin Special-Z
Cody James Corbett
1997 Wisconsin Special-Z (insert sticker)
Cody James Corbett
1998 Wisconsin Special-Z
Cody James Corbett
1999 Wisconsin Special-Z
Cody James Corbett
2000 Wisconsin Special-Z
Cody James Corbett
2000 Wisconsin Special-Z (insert sticker)
Cody James Corbett
2001 Wisconsin Special-Z
Cody James Corbett
2001 Wisconsin Special-Z (insert sticker)
Cody James Corbett
2002 Wisconsin Special-Z
Cody James Corbett
2005 Wisconsin Special-Z (insert sticker
Gideon Nicksic
Created February 18, 2019. Updated May 13, 2024.