1. (a) For the purpose of this section the definition of trucks shall not include pickup farm trucks or farm trailers attached to a farm truck, automobile or tractor, but each farm trailer and farm pickup shall carry and be equipped with reflectors, the number, location and size of which shall be prescribed and approved by the Commissioner of Public Safety.
2. (b) No person shall operate any truck, passenger bus, school bus, or truck tractor upon any highway outside the corporate limits of municipalities at any time unless there shall be carried in such vehicle the following equipment except as provided in Section 47-12-101:

3. 1. At least three flares, or three red electric lanterns, each of which shall be capable of being seen and distinguished at a distance of five hundred (500) feet under normal atmospheric conditions at nighttime. Each flare (liquid-burning pot torch) shall be capable of burning for not less than twelve (12) hours in five (5) miles per hour wind velocity, and capable of burning in any air velocity from zero (0) to forty (40) miles per hour. Every such flare shall be substantially constructed so as to withstand reasonable shock breakage. 2. At least three red burning fusees, unless red electric lanterns are carried. Every fusee shall be made in accordance with specifications of the Bureau of Explosives, New York, and so marked and shall be capable of burning at least fifteen minutes. 3. At least three red cloth flags, not less than twelve inches square, with standards to support same. 4. In every bus, truck, or truck tractor, transporting persons or property for hire, shall be carried at least one spare bulb for each kind of electric lamp where such electric lamp is used for any of the lighting devices required by this act, except sealed beam headlights. 5. No person shall operate at the time and under the conditions stated in the first paragraph of this section any motor vehicle used in the transportation of inflammable liquids in bulk or transporting compressed inflammable gases, unless there shall be carried in such vehicle three red electric lanterns meeting the requirements above stated and there shall not be carried in any said vehicle any flares, fusees or signal produced by a flame.

   In the alternative it shall be deemed a compliance with this section in the event the person operating any motor vehicle described in this section shall carry in such vehicle three portable reflector units on standards of a type approved by the Department. No portable reflector unit shall be approved unless it is so designed and constructed that it will reflect red light clearly visible for a distance of at least five hundred (500) feet under normal atmospheric conditions at nighttime when directly in front of lawful upper beams of head lamps.

Laws 1961, p. 409, § 12-407.