Cite as: 47 CNCA § 12-302

A. Every motor vehicle or combination of vehicles, at all times and under all conditions of loading, upon application of the service brake, shall be capable of:

1. Developing a braking force that is not less than the percentage of its gross weight, as specified in subsection D of this section;

2. Decelerating to a stop from a speed of twenty (20) miles per hour at not less than the rate specified in subsection D of this section; and

3. Stopping from a speed of twenty (20) miles per hour in not more than the distance specified in subsection D of this section, such distance to be measured from the point at which movement of the service brake pedal or control begins.

B. Upon application of the parking brake system and with no other brake system applied, a motor vehicle or combination of motor vehicles shall, at all times and under all conditions of loading, be capable of stopping from a speed of twenty (20) miles per hour in not more than the distance specified in subsection D of this section, such distance to be measured from the point at which movement of the emergency brake control begins.

C. Conformity to the stopping-distance requirements of subsections A and B of this section shall be determined under the following conditions:

l. Any test must be made with the vehicle on a hard surface that is substantially level, dry, smooth, and free of loose material; and

2. The vehicle must be in the center of a twelve-foot-wide lane when the test begins and must not deviate from that lane during the test.

D. The vehicle brake performance table contained in 47 O.S. § 12-302, and any amendments thereto, shall be incorporated into this section.

E. Tests for deceleration and stopping distance shall be made on a substantially level (not to exceed plus or minus one percent (1%) grade), dry, smooth, hard surface that is free from loose material.

Historical Data

LA 02-21, eff. January 11, 2021.