New Jersey § 39:4-128

§ 39:4-128.

In addition to other equipment required by law, every frozen dessert truck shall be

equipped with: a. Signal lamps mounted at the same level and as high and as widely spaced laterally

as practicable. These lamps shall be 5 to 7 inches in diameter and shall display two alternately

flashing red lights visible at 500 feet to the front and rear in normal sunlight upon

a straight level highway. b. A stop signal arm that can be extended horizontally from the left side of the truck. When such arm is extended, the side of the stop signal arm nearest the truck shall

be 7 1 / 4 inches long and parallel to the side of the truck. The side furthest from the truck shall be 18 inches long and parallel to the side

nearest the truck. The two sides shall be 18 inches apart creating a symmetrical, trapezoidal shape. Two alternately flashing red lights shall be located in the outside corners of the

extended signal arm and such corners shall be rounded to conform with the shape of

the lights. Each red light shall be 3 to 5 inches in diameter and visible at 300 feet to the

front and rear in normal sunlight upon a straight and level street. Both sides of the signal arm shall have a red reflectorized background and the following

legend: The word “STOP” shall appear in 6-inch high, 1 inch wide white letters in

the middle of the signal arm; above the word “STOP,” the phrase “IF SAFE” shall appear

in 2 inch high, one-quarter inch wide white letters; below the word “STOP,” the phrase

“THEN GO” shall appear in 2 inch high, one-quarter inch wide white letters. All colors shall meet specifications in the most recently published Federal Highway

Administration Standard Color Charts. The bottom of the extended signal arm shall be 42 inches above the street. c. A convex mirror mounted on the front so the driver in his normal seating position

can see the area in front of the truck obscured by the hood.