(a) Any stop or turn signal when required in this chapter shall be given either by means of the hand and arm or by signal lights, except as otherwise provided in this chapter.
(b) Any motor vehicle having four (4) or more wheels manufactured or assembled after January 1, 1954, designed or used for the purpose of carrying passengers or freight, in use on a highway shall be equipped with signal lights, and any required signal shall be given by signal lights when the distance from the center of the top of the steering post to the left outside limit of the body, cab, or load of such motor vehicle exceeds twenty-four (24) inches, or when the distance from the center of the top of the steering post to the rear limit of the body or load thereof exceeds fourteen (14) feet. The latter measurement shall apply to any single vehicle and to any combination of vehicles.
(c) Under any condition when a hand and arm signal would not be visible both to the front and rear of the vehicle of such signaling driver for one hundred (100) feet, the required signals shall be given by such a light or device as required by this section.
(d) Motorcycles, motor-driven cycles, motor scooters, bicycles, vehicles used solely for agricultural purposes, and vehicles not designed and intended primarily for use on a highway shall not be required to have or maintain in working order signal lights but they may be so equipped. The operator thereof shall comply with the requirements for utilizing hand and arm signals or for utilizing signal lights if the vehicle is so equipped.
Source: Code 1962, § 10-1-10
State law reference--Similar provisions, R.R.S. 1943, 60-6,159 to 60-6,163.