The U.S. state of Missouri first required its residents to register their motor vehicles in 1907. Registrants provided their own license plates for display until 1911, when the state began to issue plates.[1]
Embossed white serial on maroon plate with border line; "MISSOURI" centered at top; month of expiration at top left
123-456
1 to 905-000
Monthly staggered registration introduced. All plates validated for 1949 with orange tabs, for 1950 with green tabs, for 1951 with white tabs, and for 1952 with black tabs. Plates expiring between January and August were validated for 1953 with maroon tabs, while those expiring between September and December were validated for that year with stickers. All plates were then validated for 1954 and 1955 with stickers.
A12-345
Letter corresponds to month of expiration
1955–60
Embossed yellow serial on black plate with border line; month of expiration at top left and "MO" at top right
123-456
1 to 999-999
Validated with stickers each year until 1961 expiration.
A12-345 AB1-234
First letter corresponds to month of expiration
1961–66
Embossed white serial on maroon plate with border line; "MISSOURI" centered at top; month of expiration at top left and white box at top right containing debossed "62"
AB1-234
First letter corresponds to month of expiration
Valid without stickers until 1962 expiration, then revalidated with stickers each year until 1967 expiration.
1967 to 1978
Image
Dates issued
Description
Slogan
Serial format
Serials issued
Notes
1967
Embossed white serial on green plate with border line; month of expiration, "MISSOURI" and "68" at bottom
none
AB1-234
First letter corresponds to month of expiration
1968
Embossed green serial on white plate with border line; "69", "MISSOURI" and month of expiration at top
none
AB1-234
First letter corresponds to month of expiration
1969
Embossed black serial on white plate with border line; month of expiration, "MISSOURI" and "70" at bottom
none
A1B-234
First letter corresponds to month of expiration
1970
Embossed white serial on maroon plate with border line; month of expiration, "MISSOURI" and "71" at top
none
AB1-234
First letter corresponds to month of expiration
1971
Embossed blue serial on reflective white plate with border line; month of expiration, "MISSOURI" and "72" at top
none
A1B-234
First letter corresponds to month of expiration
1972
Embossed maroon serial on reflective white plate with border line; month of expiration, "MISSOURI" and "73" at bottom
none
AB1-234
First letter corresponds to month of expiration
1973
Embossed black serial on reflective white plate with border line; "74", "MISSOURI" and month of expiration at top
none
A1B-234
First letter corresponds to month of expiration
1974
Embossed blue serial on reflective white plate with border line; "75", "MISSOURI" and month of expiration at bottom
none
AB1-234
First letter corresponds to month of expiration
1975
Embossed reflective (glass-beaded) yellow serial on blue plate with border line; month of expiration, "MISSOURI" and "76" at top
none
A1B-234
First letter corresponds to month of expiration
1976
Embossed reflective (glass-beaded) white serial on red plate with border line; embossed white stylized "76" and flag stripes centered at top; "MO" at top left and "77" and month of expiration at top right
Embossed reflective (glass-beaded) yellow serial on black plate with border line; "78", "MISSOURI" and month of expiration at top
none
A1B-234
First letter corresponds to month of expiration
1978
Embossed reflective (glass-beaded) white serial on blue plate with border line; month of expiration, "MISSOURI" and "79" at bottom
none
AB1-234
First letter corresponds to month of expiration
1979 to present
Image
Dates issued
Description
Slogan
Serial format
Serials issued
Notes
1979–96
Embossed reflective (glass-beaded) white serial on maroon plate with border line; "MISSOURI" centered at top; month of expiration at top left
"SHOW-ME STATE" centered at bottom
ABC 123
First letter corresponds to month of expiration
1986–96
A1B 234
1995–96
1A2 34B
1997 – early 2006
Embossed dark blue serial on reflective white, blue and green gradient plate; "MISSOURI" screened in green, with wavy dark blue underline, centered at top
"SHOW-ME STATE" screened in dark blue centered at bottom
123 ABC
001 AAA to 999 ZZZ
Letters I, O, Q, U and V not used in serials, and D used only as the first letter.[4]
Missouri implemented a monthly staggered registration system in 1949, when it introduced its first multi-year passenger plate. At first, serials were in an all-numeric format, with a block allocated to each month. When these were exhausted, a new format was introduced, featuring a one-letter prefix corresponding to the month. When new multi-year plates were introduced in 1955, the same all-numeric and one-letter serial formats were used, with some months then exhausting their one-letter serials and introducing a two-letter format (the first letter still corresponding to the month).[4]
Month
All-numeric serials, 1949–54
All-numeric serials, 1955–60
Letter code
January
1 to 75-000
1 to 75-000
A
February
75-001 to 150-000
75-001 to 160-000
B
March
150-001 to 225-000
160-001 to 245-000
C
April
225-001 to 300-000
245-001 to 330-000
E
May
300-001 to 375-000
330-001 to 415-000
H
June
375-001 to 450-000
415-001 to 500-000
K
July
450-001 to 525-000
500-001 to 585-000
M
August
525-001 to 600-000
585-001 to 670-000
P
September
600-001 to 675-000
670-001 to 755-000
S
October
675-001 to 750-000
755-001 to 840-000
X
November
750-001 to 825-000
840-001 to 925-000
Y
December
825-001 to 905-000
925-001 to 999-999
Z
Two-letter serial formats were used exclusively from 1961 through 1978, including the twelve-year period in which Missouri reverted to the use of single-year plates (1967–78). An ABC 123 format was introduced in 1979 with the maroon "Show-Me State" plate, which was issued through 1996; months which exhausted their allocations subsequently used the A1B 234 and 1A2 34B formats.[4]
Throughout this period, the first letter in the serial continued to correspond to the month. Increasing demand resulted in each of the months from April through September being assigned a second letter code in the mid-1960s. March and October were assigned second letters in the mid-1970s, and by the 1990s all twelve months were using two letters.[6]
Month
Original letter code
Second letter code
January
A
V
February
B
D
March
C
L
April
E
F
May
H
G
June
K
J
July
M
N
August
P
R
September
S
W
October
X
T
November
Y
U
December
Z
Q
Month coding was discontinued with the introduction of the white, blue and green "Show-Me State" plate in 1997, before it was reintroduced in June 2008 with the introduction of the bluebird plate. Passenger plates used an AB1 C2D serial format, with the first letter corresponding to the month as from 1949 to 1996. This time, however, one letter was assigned for February, and two letters for each of the other eleven months, with the order of the letters strictly alphabetical. Hence, A and B were assigned for January, C for February, D and E for March, and so on up to Y and Z for December, with I, O and Q not used. This system was also used on light truck plates, which used a 1AB 234 serial format, the first letter corresponding to the month as on passenger plates.
When the Bicentennial plate was introduced in October 2018, passenger plates retained the AB1 C2D serial format, with each of the months that had been assigned two letters going over to its second letter (January going over from A to B, for instance), while February continued from where its serials on the bluebird plate had left off.[4] Light truck plates continued to use the system but changed to a 1AB C23 serial format, the first letter corresponding to the month as before.
Black on gold. Number indicates state's senior or junior senator.
Optional types
Optional types on this base continue to be issued, likely until January 2009. Most, if not all, optional types on this base were available in personalized format and with certain non-passenger designations. Where applicable, this designation was printed in a small rectangle screened in the upper right corner of the plate.