410 ILCS 95/2
For the purposes of this Act:
"Arthropod" means a mosquito or other invertebrate animal with jointed legs and a segmented body.
"Commercial pesticide applicator" means a person certified or licensed under the Structural Pest Control Act or the Illinois Pesticide Act who contracts to apply a pesticide within the scope of his or her certification or license.
"Department" means the Illinois Department of Public Health.
"Director" means the Director of the Illinois Department of Public Health.
"Integrated pest management" means modification of the life system of a vector or pest to reduce its numbers to an acceptable level by applying current biological and technological knowledge to achieve the desired modification in a manner that ensures protection of the environment and public health.
"Local health authority" means the full-time health department, as recognized by the Department, having jurisdiction over a particular area.
"Pest" means undesirable arthropods (including certain insects, spiders, mites, ticks and related organisms), wood infesting organisms, rats, mice, birds and any other obnoxious or undesirable animals.
"Vector" means arthropods, rats, mice, birds or other animals capable of carrying disease-producing organisms to a human or animal host. "Vector" does not include animals that transmit disease to humans only when used as human food.
410 ILCS 95/2