CDL Restrictions

K - Intrastate Restriction:  certain CDL drivers are authorized to operate only within the state of Colorado. These drivers will have this restriction on their CDL limiting them to driving a commercial vehicle solely within Colorado.
 
The “K” restriction is required:
  • For all CDL drivers 18 years of age up to 21 years of age
  • If a CDL driver cannot meet the requirements for the DOT medical (part 391, FMSCR) and has a waiver issued by the Colorado State Patrol
  • If a FMCSA exemption only allows for intrastate commerce
  • If the CDL driver self certifies to Non Excepted Intrastate Driving (option C) or Excepted Intrastate Driving (option D)
If a driver surrenders an out-of-state license that has the “K” restriction on it and one of the four requirements above is not present, the “K” restriction does not transfer over to the Colorado CDL.
 
L - Air Brakes Restriction:  if a driver is tested in a commercial vehicle that does not have air brakes, a restriction will be placed on the driver's CDL showing that they are not qualified to operate vehicles with air brakes. To remove this restriction from a CDL license, the driver must pass the air brakes written exam, purchase a CDL permit with the restriction removed, pass a full driving skills test in a vehicle equipped with air brakes and purchase a new CDL.  All normal fees apply.
 
E - No Manual Transmission CMV: This restriction is placed on an individual's CDL if the vehicle that the CDL skills test was taken in has an automatic transmission.
 
M - No Class A Passenger Vehicle: This restriction is placed on an individual's CLP or CDL.  The restriction allows them to only drive a Class B or Class C passenger vehicle (bus).
 
N - No Class A or B Passenger Vehicle: This restriction is placed on an individual's CLP or CDL.  The restriction allows them to only drive a Class C passenger vehicle (bus)
 
O - No Tractor Trailer CMV: This restriction is placed on an individual's Class A CDL if the vehicle that the CDL skills test was taken in was not a traditional tractor and did not have a fifth-wheel coupling system.
 
P - No Passengers in a CMV Bus: This restriction is placed on an individual's CLP if they have a passenger endorsement.  It restricts the individual from operating a bus with passengers other than the CDL trainer/tester and other CLP students.
 
V - Interstate Medical Variance: This restriction is placed on an individual's CLP or CDL if they have an approved vision or diabetes medical waiver from FMCSA.
 
X - No Cargo in CMV Tank Vehicle: This restriction is placed on an individual's CLP if they have the N (Tanker) endorsement.  It restricts the individual from operating a tank vehicle that has any gas or liquid in it.
 
Z - No Full Air Brake Equipped CMV: This restriction is placed on an individual's CDL if the vehicle that the CDL Skills test was taken in did not have a full air braking system.

 
To remove the E - No Manual Transmission CMV, O - Not Tractor Trailer CMV or Z - No full airbrake equipped CMV requires the purchase of a new class specific CLP without the restriction.  The CLP must be held for 14 days and then a full CDL skills test must be taken.  All license and testing fees apply.
 
For additional information, call 303-205-5694 or submit a web form.