Section R708-10-4 - Restriction Code(1) "A" indicates no restrictions are required for the driver while they are operating a motor vehicle.(2) "B" indicates the driver is restricted to wearing corrective lenses while operating a motor vehicle.(3) "C" indicates a mechanical aid or compensatory device must be installed in the motor vehicle the driver is operating.(4) "D" indicates the driver must use a prosthetic aid while operating a vehicle.(5) "F" indicates the driver is restricted to driving a motor vehicle with outside rearview mirrors.(6) "G" indicates the driver is restricted to driving during daylight hours only.(7) "J" is used as a free text field to identify additional restrictions for the driver.(8) "K" indicates the driver is restricted to intrastate only while driving commercially.(9) "U" indicates the driver is restricted to operating only three-wheel motorcycles.(10) "1" indicates the driver is required to have an ignition interlock device installed in the motor vehicle they are operating.(11) "2" indicates the driver is restricted to operating a motorcycle with 249cc or less.(12) "3" indicates the driver is restricted to operating a motorcycle with 649cc or less.(13) "4" indicates the driver is restricted to operating a street legal ATV.(14) "5" indicates the driver is restricted to operating a motorcycle with 90cc or less.(15) "6" indicates the driver is restricted to operating a motor vehicle on a road with a posted speed limit of 40 mph or less.(16) "7" indicates the driver is restricted to operating a motor vehicle with an automatic transmission.Utah Admin. Code R708-10-4