Michigan Compiled Laws, Chapter 324. Natural Resources and Environmental Protection § 324.8302

Sec. 8302.  (1) “Active ingredient” means an ingredient that will prevent, destroy, repel, or mitigate pests, or that will act as a plant regulator, defoliant, or desiccant or otherwise alter the behavior of plants or products.

(2) “Activity plan” means a plan for the mitigation of groundwater contamination at a specific location, including a time frame for implementation.

(3) “Adulterated” applies to a pesticide if its strength or purity is less than, or significantly greater than, the professed standard or quality as expressed on its labeling or under which it is sold;  if any substance was substituted wholly or in part for a pesticide;  or if a valuable constituent of the pesticide was wholly or in part abstracted.

(4) “Agricultural commodity” means a plant or part of a plant, or an animal or animal product, produced primarily for sale, consumption, propagation, or other use by human beings or animals.

(5) “Agricultural pesticide” means a pesticide that bears labeling that meets federal worker protection agricultural use requirements established in 40 CFR parts 156 and 170.

(6) “Agricultural pesticide dealer” means a person engaged in distributing, selling, or offering for sale an agricultural pesticide to the ultimate user.

(7) “Animal” means all vertebrate and invertebrate species, including, but not limited to, human beings and other mammals, birds, fish, and shellfish.

(8) “Antimicrobial pesticide” means a pesticide that is intended to disinfect, sanitize, reduce, or mitigate growth or development of microbial organisms, as defined under FIFRA.

(9) “Application season” means a time period of pesticide application, consistent with the category of application, within a calendar year.

(10) “Aquifer” means a geologic formation, a group of formations, or a part of a formation capable of yielding a significant amount of groundwater to wells or springs.

(11) “Aquifer sensitivity” means a hydrogeologic function representing the inherent abilities of materials surrounding the aquifer to attenuate the movement of pesticides into that aquifer.

(12) “Avicide” means a pesticide intended for preventing, destroying, repelling, or mitigating pest birds.

(13) “Building manager” means the person who is designated as being responsible for the building's pest management program and to whom any reporting and notification shall be made pursuant to this part or rules promulgated under this part.

(14) “Certified applicator” means an individual who is authorized under this part to use and supervise the use of a restricted use pesticide.

(15) “Commercial applicator” means a person who is required to be a registered or certified applicator under this part, or who holds himself or herself out to the public as being in the business of applying pesticides.  A commercial applicator does not include a person using a pesticide for a private agricultural purpose.

(16) “Commercial building” means a portion of a building that is not a private residence, where a business is located, and that is frequented by the public.

(17) “Confirmed contaminant” means a contaminant that has been detected in at least 2 groundwater samples collected from the same groundwater sampling point at an interval of greater than 14 days.

(18) “Contaminant” means a pesticide originated chemical, radionuclide, ion, synthetic organic compound, microorganism, or waste that does not occur naturally in groundwater or that naturally occurs at a lower concentration than detected.

(19) “Contamination” means the direct or indirect introduction into groundwater of any contaminant caused in whole or in part by human activity.