Weight Classes for 2-Axle Trucks (1956 - 1967)
Weight class is designated by the letter in the plate serial, "R" being the lightest and "Z" being the heaviest. "X" not used.
Weight Class
Weight Limits
"R"
1 - 5,000 lb
"S"
5,001 - 7,000 lb
"T"
7,001 - 11,000 lb
"U"
11,001 - 16,500 lb
"V"
16,501 - 21,000 lb
"W"
21,001 - 26,000 lb
"Y"
26,001 - 30,000 lb
"Z"
30,001 - 33,000 lb
"PA0000" stickers signify first sticker for plate
All plates measure 6" x 12"
Manufactured in Pennsylvania prisons
Issued in singles
Colors: gold on dark blue
Chuck Sakryd
From Chuck Sakryd
From Rob Baran
From Platedog
From Chuck Sakryd
From Worthpoint
From Worthpoint
From Drewski
Not offered on this format
Not offered on this format
3-AXLE TRUCKS
Observed serial ranges (no I, O, Q, T, W, X used except for weight class):
Weight Classes for 3-Axle Trucks (1956 - 1967)
Weight class is designated by the letter in the plate serial, "RZ" being the lightest and "ZZ" being the heaviest. "XZ" not used.
Weight Class
Weight Limits
"RZ"
1 - 12,000 lb
"SZ"
12,001 - 14,000 lb
"TZ"
14,001 - 16,000 lb
"UZ"
16,001 - 26,000 lb
"VZ"
26,001 - 31,000 lb
"WZ"
31,001 - 36,000 lb
"YZ"
36,001 - 40,000 lb
"ZZ"
40,001 - 47,000 lb
"PA0000" stickers signify first sticker for plate
All plates measure 6" x 12"
Manufactured in Pennsylvania prisons
Issued in singles
Colors: gold on dark blue
From Jeff Lesher
From Clayton Moore
From eBay
From Jeff Lesher
From Clayton Moore
Not offered on this format
Not offered on this format
3-AXLE TRUCK TRACTORS
Observed serial ranges (no I, O, Q, T, W, X used except for weight class):
Weight Classes for 3-Axle Truck Tractors
Weight class is designated by the letter in the plate serial, "RT" being the lightest and "ZT" being the heaviest. Only "WT", "YT", and "ZT" known for plates.
Weight Class
Weight Limits
"RT"
1 - 12,000 lb
"ST"
12,001 - 14,000 lb
"TT"
14,001 - 16,000 lb
"UT"
16,001 - 26,000 lb
"VT"
26,001 - 31,000 lb
"WT"
31,001 - 36,000 lb
"YT"
36,001 - 40,000 lb
"ZT"
40,001 - 47,000 lb
"PA0000" stickers signify first sticker for plate
All plates measure 6" x 12"
Manufactured in Pennsylvania prisons
Issued in singles
Colors: gold on dark blue
From Drewski
From Worthpoint
From John McDevitt
Not offered on this format
Not offered on this format
4-AXLE TRUCKS
Observed serial ranges (no I, O, Q, T, W, X used except for weight class):
Weight Classes for 4-Axle Trucks
Weight class is designated by the letter in the plate serial, "RX" being the lightest and "ZX" being the heaviest. Only "YX" and "ZX" known for plates.
Weight Class
Weight Limits
"RX"
1 - 14,000 lb
"SX"
14,001 - 16,000 lb
"TX"
16,001 - 26,000 lb
"UX"
26,001 - 31,000 lb
"VX"
31,001 - 36,000 lb
"WX"
36,001 - 40,000 lb
"YX"
40,001 - 47,000 lb
"ZX"
47,001 - 60,000 lb
"PA0000" stickers signify first sticker for plate
All plates measure 6" x 12"
Manufactured in Pennsylvania prisons
Issued in singles
Colors: gold on dark blue
From Sal Dodd
From John Willard
Not offered on this format
Not offered on this format
1968 - 1971
Notes
Number Plate
Personalized Plate
Sample Plate
Observed serial range (no I or O used): CA-10000 - CP-31867
All plates measure 6" x 12"
Manufactured in Pennsylvania prisons
Issued in singles
Colors: dark blue on gold
From Steve Ondik
Not offered on this format
(Test plate) From John McDevitt
ERROR PLATE
"BC" not used, plate numbers started at "CA-10000" for this year
From Clayton Moore
1972 - 1977
Notes
Number Plate
Personalized Plate
Sample Plate
Observed serial range (no I, O, or Q used): CA-10000 - CP-31867
All plates measure 6" x 12"
Manufactured in Pennsylvania prisons
Issued in singles
Colors: dark blue on gold
From John McDevitt
Not offered on this format
From Bob Connison
("PENNSYLVANIA" & "COMMERCIAL" reversed) From Jerry McCoy
1978 - 1984
Notes
Number Plate
Personalized Plate
Sample Plate
Observed serial ranges (no I, O, or Q used): CA-10000 - CZ-99999 10000-CA - 28637-CD
All plates measure 6" x 12"
Manufactured in Pennsylvania prisons
Issued in singles
Colors: dark blue on gold
From John McDevitt
From John McDevitt
Not offered on this format
Not offered on this format
1984 - 2000
Notes
Number Plate
Personalized Plate
Sample Plate
Observed serial ranges (no I, O, Q, or U used): 35369-CD - 98283-CJ (restarting at 10000) YA-00000 - ZV-98247
Serials picked up where last base left off. The switch to "YA" was due to a computer issue with too many registrations starting with "C", according to John McDevitt. This base issued into 2000, despite the next base starting in 1999.
All plates measure 6" x 12"
Manufactured in Pennsylvania prisons
Issued in singles
Colors: gold on dark blue
From John McDevitt
From Peter Clericuzio
Not offered on this format
Not offered on this format
1999 - 2004
Notes
Number Plate
Personalized Plate
Sample Plate
Observed serial range: (no I, O, Q, or U used): YAA-0000 - YRR-9999
All plates measure 6" x 12"
Manufactured in Pennsylvania prisons
Issued in singles
Colors: dark blue on white with faded blue (top) and yellow (bottom) bands
From John McDevitt
Not offered on this format
Not offered on this format
ADDITIONAL PLATES
"CC-15281" observed as passenger vanity, but serial is remake of a 1978 base Truck number
From Bruce Bufalini
Not offered on this format
Not offered on this format
2005 - present
Notes
Number Plate
Personalized Plate
Sample Plate
Format 1 (Sticker well at top-left)
Observed serial range: (no I, O, Q, or U used): YSA-0000 - ZKH-9999
All plates measure 6" x 12"
Manufactured in Pennsylvania prisons
Issued in singles
Colors: dark blue on white with solid blue (top) and yellow (bottom) bands
From John McDevitt
From Jordan Irazabal
Not offered on this format
Format 2 (Map outline in place of sticker well)
Observed serial range: (no I, O, Q, or U used): ZKJ-0000 - current high
More rounded dies for "TRUCK" observed as early as the "ZM" series, but traditional dies observed as late as "ZP" series. It is likely that one plate-making machine received the new die set before the other machine(s) got their new set(s).
All plates measure 6" x 12"
Manufactured in Pennsylvania prisons
Issued in singles
Colors: dark blue on white with solid blue (top) and yellow (bottom) bands