NRS484D.255. Requirements for performance.

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

      (a) Developing a braking force that is not less than the percentage of its gross weight tabulated in subsection 2 for its classification;

      (b) Decelerating to a stop from not more than 20 miles per hour at not less than the feet per second per second tabulated in subsection 2 for its classification; and

      (c) Stopping from a speed of 20 miles per hour, in not more than the distance tabulated in subsection 2 for its classification, such distance to be measured from the point at which movement of the service brake pedal or control begins.

      2.  The required braking forces, decelerations and braking distances are tabulated as follows:

 

                                                                                                                               Brake system

                                                                                                                                  application

                                                                                 Braking                                  and braking

                                                                               force as a                                    distance

                                                                              percentage                                    in feet

                                                                                 of gross                                      from an

                                                                               vehicle or        Deceleration        initial

                Classification                                    combination       in feet per       speed of

                  of Vehicles                                            weight                second         20 m.p.h.

 

      Passenger vehicles with a seating capacity of 10 people or less including driver, not having manufacturer’s gross vehicle weight rating.......                       52.8%                17  25

      All motorcycles and mopeds............................   43.5%                    14                   30

      Single-unit vehicles with manufacturer’s gross vehicle weight rating of 10,000 pounds or less                                                                         43.5%                      14                   30

      Single-unit vehicles with manufacturer’s gross weight rating of more than 10,000 pounds                                                                                43.5%                      14                   40

      Combination of a two-axle towing vehicle and trailer with a gross trailer weight of 3,000 pounds or less                                                                     43.5%                    14                   40

      Buses, regardless of the number of axles, not having a manufacturer’s gross weight rating                                                                               43.5%                      14                   40

      All combinations of vehicles in driveaway-towaway operations                            43.5%              14                                                                   40

      All other vehicles and combinations of vehicles                             43.5%                14  50

 

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

      [Part 6 1/2:166:1925; added 1939, 316; A 1953, 152]—(NRS A 1969, 1219; 1975, 1080; 2009, 400)—(Substituted in revision for NRS 484.595)