(NEWEST 2026) ILLINOIS CLASS B NON-CDL TEST
QUESTIONS AND CORRECT ANSWERS
Class A: ANSWER Any combination of cars with a GCWR of at least 26,001
pounds, as long as the vehicle being towed has a GVWR greater than 10,000
pounds. permits Class B, C, and D vehicles to operate as well.
Class B: ANSWER Any single car weighing 26,001 pounds or more, or any
vehicle pulling another that weighs no more than 10,000 pounds. permits Class
C and D cars to operate as well.
Class C - ANSWER Any motor vehicle with a GVWR of more than 16,000
pounds, but less than 26,001 pounds or any such vehicle pulling another not in
excess of 10,000 pounds. Also permits for operation of Class D vehicles.
Class D - ANSWER any car with a GVWR of little more than 16,000 pounds.
Does not include A. B, C, L or M automobiles.
Class L - ANSWER Any motor-driven cycle with less than 150cc
displacement.
Class M - ANSWER Any motor-driven bike having more than 150cc
displacement.
State and local highways classified as Class I have no overall length restrictions.
Class II authorized state and local highways - ANSWER No overall length
limit; however, the maximum permitted wheelbase is 55 feet for truck tractor-
semitrailer com - binations and 65 feet for truck tractor-semitrailer-trailer
(double-bottom) com binations.
Class III highways and remainder of state highway system - ANSWER
Maximum allow - able wheelbase is 55 feet for the truck tractor-semitrailer
combinations. All other types of vehicle combinations are limited to an overall
length of 60 feet including cargo.
Non-designated local roadways and highways - ANSWER Maximum overall
, length is 55 feet, including loads for truck tractor-semitrailer combinations, and
60 feet for all other types of vehicle combinations.
Combination of vehicles made specifically to move automobiles— ANSWER
May have an overall length of 65 feet plus a front overhang of 3 feet and a rear
overhang of 4 feet on Class I and II highways. The maximum overall length,
including load, on all other roads and streets is 60 feet.
Width - ANSWER The maximum width for most vehicles is 8 feet, except on
designated Class I and II state high ways and designated local roads where a
width of 8 feet, 6 inches is allowed
Farm Width Exemption - ANSWER When visibility is good, loads of
agricultural goods or husbandry tools are transported between 30 minutes after
sunrise and 30 minutes before nightfall. These vehicles are not excluded when
there is not enough light, during adverse weather conditions, or when
pedestrians or cars on the roadway cannot be plainly seen from 1,000 feet away.
Bus Width Exemption - ANSWER buses that operate inside the boundaries of
towns and cities in counties with 500,000 or more residents. Maximum widths
may be up to 9 feet; however, no vehicle wider than 8 feet, 8 inches may be
operated on interstate highways in such counties.
Length: Except for semitrailers, no vehicle, whether loaded or not, may be
longer than forty-two feet.
Length Exception - ANSWER Exceptions include trucks hauling pipes, poles,
machines or other structural objects that cannot be readily taken apart.
However, the length of these things may not exceed 80 feet, save for public
utility emergency repairs or for those holding special permissions. These
vehicles are not allowed to operate when it is dark or on Saturdays, Sundays and
legal holidays.
Height - ANSWER The maximum height for all vehicles on all roadways is 13
feet, 6 inches, including load, from the underside of the tire to the top of the
vehicle.
Depending on axle spacings, the weight on specific state and local streets and
roads is 20,000 pounds on a single axle, 34,000 pounds on a tandem, and up to
80,000 pounds on a five-axle combination.
On non-designated streets and highways, the weight is 20,000 pounds for a
single axle, 34,000 pounds for a tandem, and up to 80,000 pounds for a five-
QUESTIONS AND CORRECT ANSWERS
Class A: ANSWER Any combination of cars with a GCWR of at least 26,001
pounds, as long as the vehicle being towed has a GVWR greater than 10,000
pounds. permits Class B, C, and D vehicles to operate as well.
Class B: ANSWER Any single car weighing 26,001 pounds or more, or any
vehicle pulling another that weighs no more than 10,000 pounds. permits Class
C and D cars to operate as well.
Class C - ANSWER Any motor vehicle with a GVWR of more than 16,000
pounds, but less than 26,001 pounds or any such vehicle pulling another not in
excess of 10,000 pounds. Also permits for operation of Class D vehicles.
Class D - ANSWER any car with a GVWR of little more than 16,000 pounds.
Does not include A. B, C, L or M automobiles.
Class L - ANSWER Any motor-driven cycle with less than 150cc
displacement.
Class M - ANSWER Any motor-driven bike having more than 150cc
displacement.
State and local highways classified as Class I have no overall length restrictions.
Class II authorized state and local highways - ANSWER No overall length
limit; however, the maximum permitted wheelbase is 55 feet for truck tractor-
semitrailer com - binations and 65 feet for truck tractor-semitrailer-trailer
(double-bottom) com binations.
Class III highways and remainder of state highway system - ANSWER
Maximum allow - able wheelbase is 55 feet for the truck tractor-semitrailer
combinations. All other types of vehicle combinations are limited to an overall
length of 60 feet including cargo.
Non-designated local roadways and highways - ANSWER Maximum overall
, length is 55 feet, including loads for truck tractor-semitrailer combinations, and
60 feet for all other types of vehicle combinations.
Combination of vehicles made specifically to move automobiles— ANSWER
May have an overall length of 65 feet plus a front overhang of 3 feet and a rear
overhang of 4 feet on Class I and II highways. The maximum overall length,
including load, on all other roads and streets is 60 feet.
Width - ANSWER The maximum width for most vehicles is 8 feet, except on
designated Class I and II state high ways and designated local roads where a
width of 8 feet, 6 inches is allowed
Farm Width Exemption - ANSWER When visibility is good, loads of
agricultural goods or husbandry tools are transported between 30 minutes after
sunrise and 30 minutes before nightfall. These vehicles are not excluded when
there is not enough light, during adverse weather conditions, or when
pedestrians or cars on the roadway cannot be plainly seen from 1,000 feet away.
Bus Width Exemption - ANSWER buses that operate inside the boundaries of
towns and cities in counties with 500,000 or more residents. Maximum widths
may be up to 9 feet; however, no vehicle wider than 8 feet, 8 inches may be
operated on interstate highways in such counties.
Length: Except for semitrailers, no vehicle, whether loaded or not, may be
longer than forty-two feet.
Length Exception - ANSWER Exceptions include trucks hauling pipes, poles,
machines or other structural objects that cannot be readily taken apart.
However, the length of these things may not exceed 80 feet, save for public
utility emergency repairs or for those holding special permissions. These
vehicles are not allowed to operate when it is dark or on Saturdays, Sundays and
legal holidays.
Height - ANSWER The maximum height for all vehicles on all roadways is 13
feet, 6 inches, including load, from the underside of the tire to the top of the
vehicle.
Depending on axle spacings, the weight on specific state and local streets and
roads is 20,000 pounds on a single axle, 34,000 pounds on a tandem, and up to
80,000 pounds on a five-axle combination.
On non-designated streets and highways, the weight is 20,000 pounds for a
single axle, 34,000 pounds for a tandem, and up to 80,000 pounds for a five-
