The service brakes on every motor vehicle and every combination of motor vehicle and trailer, operated on a public highway under any condition of loading, shall be capable of stopping the vehicle or combination by reducing its speed at a rate sufficient to bring it to a stop from the speed of 20 miles per hour on a hard, dry, approximately level pavement, substantially free from loose material within the distances specified below:
N.Y. Comp. Codes R. & Regs. Tit. 15 § 41.1