As used in this Act:

1. (a) "Agreement" means the Streamlined Sales and Use Tax Agreement as amended and adopted on January 27, 2001.
2. (b) "Certified Automated System" means software certified jointly by the states that are signatories to the Agreement to calculate the tax imposed by each jurisdiction on a transaction, determine the amount of tax to remit to the appropriate state, and maintain a record of the transaction.
3. (c) "Certified Service Provider" means an agent certified jointly by the states that are signatories to the Agreement to perform all of the seller's sales tax functions.
4. (d) "Person" means an individual, trust, estate, fiduciary, partnership, limited liability company, limited liability partnership, corporation, or any other legal entity.
5. (e) "Sales Tax" means the tax levied under the Service Occupation Tax Act (35 ILCS 115/) and the Retailers' Occupation Tax Act (35 ILCS 120/). "Sales tax" also means any local sales tax levied under the Home Rule Municipal Retailers' Occupation Tax Act (65 ILCS 5/8-11-1), the Non-Home Rule Municipal Retailers' Occupation Tax Act (65 ILCS 5/8-11-1.3), the Non-Home Rule Municipal Service Occupation Tax Act (65 ILCS 5/8-11-1.4), the Home Rule Municipal Service Occupation Tax (65 ILCS 5/8-11-5), the Home Rule County Retailers' Occupation Tax Law (55 ILCS 5/5-1006), the Special County Occupation Tax for Public Safety, Public Facilities, Mental Health, Substance Abuse, or Transportation Law (55 ILCS 5/5-1006.5), the Home Rule County Service Occupation Tax Law (55 ILCS 5/5-1007), subsection (b) of the Rock Island County Use and Occupation Tax Law (55 ILCS 5/5-1008.5(b)), the Metro East Mass Transit District Retailers' Occupation Tax (70 ILCS 3610/5.01(b)), the Metro East Mass Transit District Service Occupation Tax (70 ILCS 3610/5.01(c)), the Regional Transportation Authority Retailers' Occupation Tax (70 ILCS 3615/4.03(e)), the Regional Transportation Authority Service Occupation Tax (70 ILCS 3615/4.03(f)), the County Water Commission Retailers' Occupation Tax (70 ILCS 3720/4(b)), or the County Water Commission Service Occupation Tax (70 ILCS 3720/4(c)).
6. (f) "Seller" means any person making sales of personal property or services.
7. (g) "State" means any state of the United States and the District of Columbia.
8. (h) "Use tax" means the tax levied under the Use Tax Act (35 ILCS 105/) and the Service Use Tax Act (35 ILCS 110/). "Use tax" also means any local use tax levied under the Home Rule Municipal Use Tax Act (65 ILCS 5/8-11-6(b)), provided that the State and the municipality have entered into an agreement that provides for administration of the tax by the State.

(Source: P.A. 100-1167, eff. 1-4-19.)