Data Dictionary > Vehicle > Vehicle Brake Type Code

 print | help

previousTopic:

MCO Vehicle Horsepower

Vehicle Brake Type Code

Source of Definition: MVA; 49 CFR 571

Source of Data: MVA

A classification of the mechanism used by a motor vehicle to reduce its speed or stop.

Value

Description

 

Restriction on CDL

AB

Air Brakes

(No hydraulic system)

No restriction

AH

Partial Air Brakes

(Air over hydraulic)

No full air brake equipped CMV (Z)

HB

No Air Brakes

(Hydraulic system)

No air brakes equipped CMV restriction (L)

Usage Note: Light vehicles (cars and light trucks) mostly use hydraulic pressure, while heavy vehicles (truck and trailers) use air pressure to control their bakes. Other mechanisms are rare, so do not have a categorization at this time.

Logical Format (Type/Max Length): AN/2

nextTopic:

Vehicle Brand Status
VVHBTC

brakeTypeCode type: string-code
topOfPage print | help