This page last updated: 03/27/12

Illinois

TRUCK TRACTOR

This class of plate is similar to the commercial truck plate.  The validation period is also a fiscal year of July 1 to June 30 and the suffix letter for this class is a weight code.  These plates, however, are differentiated from the commercial trucks in that they have a tiny "T" to the left and above the weight code suffix.  I don't know if this class was used for the "B" weight class prior to its separation from the commercial truck plate series in 1983.  Similar to the commercial truck plates, the weight code letters are as follows (this list is not perfect as the weight codes can vary from year to year and in some years, some letters were excluded and other letters, like "Q" and "V", included:

"B" = under 8,000 lbs.
"C" = 8,001 to 10,000 lbs.
"D" = 10,001 to 12,000 lbs.
"E" = 12,001 to 14,000 lbs.
"F" = 14,001 to 16,000 lbs.
"G" = 16,001 to 20,000 lbs.
"H" = 20,001 to 24,000 lbs.
"J" = 24,001 to 28,000 lbs.
"K" = 28,001 to 32,000 lbs.
"L" = 32,001 to 36,000 lbs.
"N" = 36,001 to 41,000 lbs.
"P" = 41,001 to 45,000 lbs.
"R" = 45,001 to 50,000 lbs.
"S" = 50,001 to 59,000 lbs.
"T" = 59,001 to 64,000 lbs.
"V" = 64,001 to 73,280 lbs.
"X" = 73,281 to 77,000 lbs. (started in 1985)
"Z" = 77,001 to 80,000 lbs. (started in 1985)
 

According to the Illinois website (as of February 4, 2012), the weight classes are listed below.  It is not known when this list was established, so I don't know if there are any differences between the list and what was available prior to 2012:

"B" = under 8,000 lbs.
"D" = 8,001 to 12,000 lbs.
"F" = 12,001 to 16,000 lbs.
"H" = 16,001 to 26,000 lbs.
"J" = 26,001 to 28,000 lbs.
"K" = 28,001 to 32,000 lbs.
"L" = 32,001 to 36,000 lbs.
"N" = 36,001 to 40,000 lbs.
"P" = 40,001 to 45,000 lbs.
"Q" = 45,001 to 50,000 lbs.
"R" = 50,001 to 54,999 lbs.
"S" = 55,000 to 59,500 lbs.
"T" = 59,501 to 64,000 lbs.
"V" = 64,001 to 73,280 lbs.
"X" = 73,281 to 77,000 lbs. (started in 1985)
"Z" = 77,001 to 80,000 lbs. (started in 1985)

1990 (blue/reflective light blue) "R" m $1.50 "2799 tR" (12467)
1990 (blue/reflective light blue) "R" m $1.50 "2800 tR" (12468)

1994 (black/reflective yellow) "V" m $1.50 "524 tV" (12438)