For example, the extremity of a tractor may be the protruding axle stubs. On a cultivator it may be the protruding shovels when folded into transport position. This is generally stationary equipment, and is only occasionally moved on a public road. Flashing Amber Warning lamps must meet SAE Standard J974, Flashing Warning Lamp for Agricultural Equipment. A coloured fabric or other flexible material impregnated with dyes that absorb radiation from one source and emit it again as visible light, so as to appear bright and glowing.
Suggested colours are orange and red.
Headlamps must conform to SAE Standard J975. Surfaces spanning a horizontal distance. The left hand side of a tractor, self-propelled implement of husbandry, agricultural implement, or farmstead equipment, as determined from the rear of the vehicle facing in the direction that it moves. Lamps used to illuminate and identify various parts of a machine to mark its size and position on a public road. Agricultural equipment manufactured after January 1, 1998.