Ill. Admin. Code tit. 29 § 610.20
"Act" means the Illinois Chemical Safety Act [430 ILCS 45].
"Business" means any individual, partnership, corporation or association in the State engaged in a business operation that has 5 or more full-time employees, or 20 or more part-time employees, and that is properly assigned or included in the Standard Industrial Classifications (SIC) identified in Section 3 of the Act or any facility not covered by the above SIC codes that is subject to the provisions of section 302 of the federal Emergency Planning and Community Right-to-Know Act of 1986 and that is found by the Illinois Environmental Protection Agency to use, store or manufacture a chemical substance in a quantity that poses a threat to the environment or public health.
"Authorized official" means the emergency services and disaster agency coordinator or the chairperson of the local emergency planning committee.
"IEMA" means the Illinois Emergency Management Agency.
"Emergency Services and Disaster Agency" or "ESDA" means the agency by this name, by the name Emergency Management Agency, or by any other name that is established by ordinance within a political subdivision to coordinate the emergency management program within that political subdivision and with private organizations, other political subdivisions, and the State and federal governments.
"Facility" means the buildings and all real property contiguous thereto, and the equipment at a single location used for the conduct of business [ 430 ILCS 45/3 ].
"Local emergency planning committee" or "LEPC" means the committee that is appointed for an emergency planning district under section 301 of the federal Emergency Planning and Community Right-to-Know Act of 1986.
Ill. Admin. Code tit. 29, § 610.20