Standard Truck

Figuring out Truck plates is a work in progress. Information provided here is a working theory.
Believed "private" truck information in left column; believed commercial in right column.

First issue 1921, when Weight Codes introduced.
All plates expired October 31 of year marked. 1/2 year same as passenger 1934-1936; Earliest truck-specific 1/2 year known 1956.
Plates marked with TON but no leading letter believed to be Trailer (prior to 1965)

Restamped plates known 1943, 1948, 1951


jump to modern era: 1982-present


weight-based letter coding used 1921-1971
LETTER designation
years verified
 H < 1 ton, pneumatic tire
1921-1971
 I < 1 ton, solid tire
1921-1938
J
1-2 ton, pneumatic tire
1930-1960
K
1-2 ton, solid tire
1924, 1927
L
2-3 ton, pneumatic tire 1934-1958
M
2-3 ton, solid tire  1931
N
3-4 ton, pneumatic tire  1927-1956
O
3-4 ton, solid tire 1926
P
>4 ton, pneumatic tire 1954+, used with specific weight
Q
>4 ton, solid tire 1926

1921 (single)

red/black


1922
(single)

black/white


1923
(single)

white/dark green
variation known without dash

1924
(single)
script "SC" in circle
black/orange


1925
(single)

white/green


1926 (single)
"SC" inside Palmetto Tree design
green/white


1927 (single)
"SC" inside Palmetto Tree design
green/white


1928 (single)

black/yellow


1929 (single)

black/white


1930
(pair)
"IODINE" vertically on right side
white/black


1931
(pair)
"THE IODINE STATE" bottom
green/gray


1932
(pair)
"THE IODINE STATE" bottom
black/yellow


1933 (pair)
"THE IODINE PRODUCTS STATE" bottom
black/white


1934 (pair)
"APRIL 30" top or "OCTOBER 31" bottom
black/yellow(April) yellow/black(October)


1935
(pair) 1/2 year
"APRIL 30" top or "OCTOBER 31" bottom
color variations:


red/white; white/red; black/white; white/black
no rhyme or reason known as to color variations


1936
(pair) 1/2 year
"APRIL 30" top or "OCTOBER 31" bottom
yellow/black(April) black/yellow(October)


1937
(pair) 1/2 year
unknown if APRIL exists - all I've seen are OCT
black/white


1938
(pair)

black/yellow


1939 (pair)

black/white


1940
(pair)

yellow/black


1941 (pair)

black/yellow


1942 (pair)

yellow/black


1943
(single)
restamped from collected plates - most '42; rare unstamped exist
no letter, assumed overflow of H-class
yellow/black


1944
(single)
strip applied to existing 1943;
weight class matched, plate number did not
yellow/green


1945 (single)

yellow/green


1946
(pair)

silver/black


1947
(pair)

black/yellow
some restamped known (shown)

1948 (pair)

yellow/black
some restamped known (shown)

1949
(pair)

white/black


1950
(pair)

black/white
first year actual weight marked on plate


1951 (pair)

white/black
some restamped know (both shown)

1952
(pair)

yellow/black


1953
(pair)
black/yellow
begin P-prefix for variable weight (Commercial vehicles)
other letters for Private vehicles

1954
(pair)

white/black


1955
(pair)

black/white


1956
(pair)

black/yellow


1957
(pair)

white/blue


1958 (pair)

blue/white


1959
(pair)

white/blue


1960 (pair)

blue/white
last year for J, L, N, etc prefixes

1961
(pair)

red/white
last year weight marked on plate (H only)

1962
(pair)

white/red


1963
(pair)

white/green


1964
(pair)
begin 2-letter prefix,
(overflow from single letter)
white/black


1965
(pair)

black/white


1966
(pair)

white/blue
P-prefix dropped, but still considered Commercial

1967
(pair)
blue/white
transition to smaller font
begin P-prefix for private/weight-based tax
weight-marked considered Commercial

1968
(pair)
begin reflective letters
white/black


1969
(pair)

white/blue


1970
(pair)
"1670  300 YEARS  1970"
white/green


1971
(pair)

white/brown


1972
(pair)

white/black


1973
(pair)
white/blue
weight codes discontinued;
previous "H" truck get regular random-issue

1974
(pair)
last year for pairs
white/green


1975
(single)

white/maroon



Era 1976-1981

all single plates


1976

"1776 Bicentennial 1976" top
blue/white


1977


red/white


1978


green/white


1979


black/white


1980

blue/white


1981


red/white



















repainted plate;
I believe wrong colors



















































































non H, opposite colors?








































































































































































1/2 year changes to May 15
First year??













essentially same as above, but high weight
codes receive leading letter

























1/2 year changes to June 30
First year??







 > forward to 1982-present