The term includes electrical, mechanical, and electronic components that are part of machinery and necessary for a machine to produce its effect or result and environmental control equipment required to maintain certain levels of humidity or temperature in a special and limited area of the manufacturing facility where the regulation is essential for production to occur. The term includes computer equipment that controls or monitors the functions of machinery used directly in the manufacturing operations.
"Used directly" with respect to recycling means used solely in processing, compacting, altering, transporting, or otherwise affecting material as a part of the recycling process.
N.D.C.C. § 57-39.2-04.3