Section R. 325.2410 - Definitions pertaining to controlsRule 10. As used in these rules:
(a) "Control" means the limitation of worker exposure to contaminate levels not exceeding the MAC.(b) "Controlled process" means an arrangement of equipment to control the contaminant by means of suitable design measures.(c) "Enclosure" means a room, booth, or exhaust hood that confines contaminants at their sources.(d) "General ventilation" means the supply and removal of air from a space to dilute or remove contaminants.(e) "Local exhaust ventilation system" means an arrangement of exhaust hoods, ducts, and fans that removes air to control a contaminant at its source.(f) "Process space" means a tunnel, process equipment, shaft, or enclosed space.(g) "Supply ventilation system" means an arrangement of inlet openings or equipment to introduce outside air into the working environment.Mich. Admin. Code R. 325.2410