Seasonal CDL for farm-related service industry that allows operation of a Class B and C commercial motor vehicle within 150 miles of the place of business or farm being served. If the State is notified by the FMCSA that a medical variance has been issued to the driver, the State must indicate the existence of such a medical variance on the CDLIS driving record and the CDL document using a restriction code 'V' to indicate that there is information about the medical variance on the CDLIS record. Prior to 7/1/15, this was restriction 'K'. If a driver possesses a Class B CDL, but obtains his or her passenger or school bus endorsement in a Class C vehicle, the State must place an 'N' restriction indicating that the driver can only operate Class C passenger vehicle or school buses. Prior to 7/1/15, this was restriction 'J'. If a driver possesses a Class A CDL, but obtains his or her passenger or school bus endorsement in a Class B vehicle, the State must place an 'M' restriction indicating that the driver can only operate Class B and Class C passenger vehicle or school buses. Prior to 7/1/15, this was the corrective lenses restriction. If the driver takes the Skills Test in a Class A vehicle that is not a truck-tractor/semi-trailer combination, an “O” restriction will be placed on their license restricting them from driving any Class A vehicle that is a truck-tractor/semi-trailer. If the driver takes the Skills Test in a vehicle that has an automatic transmission, then an 'E' no manual transmission restriction is placed on their license. The driver is not authorized to operate a CMV equipped with full air brakes. If the driver takes the test in a vehicle with an air over hydraulic brake system, then they will have a 'Z' no full air brake restriction placed on their license. Prior to 7/1/15, this was restriction 'B'. If the driver does not pass the Air Brakes Knowledge Test, does not correctly identify the air brake system components, does not properly conduct an air brake systems check, or does not take the Skills Test in a vehicle with a full air brake system, they must have an 'L' no full air brake restriction placed on their license. Restrictions are placed on a CDL when you’re not authorized to operate or handle certain types of vehicles or cargo.

M restriction on cdl license