Any engine coolant or antifreeze that is manufactured after January 1, 2011, and subsequently sold within the State, and that contains more than 10% ethylene glycol, shall include denatonium benzoate at a minimum of 30 parts per million and a maximum of 50 parts per million as a bittering agent within the product so as to render it unpalatable.
410 ILCS 1/5
Addition of bittering agent required
Known as the Antifreeze Bittering Act
The act spans §§ 410-1-1 to 410-1-99 (8 sections).
P.A. 96-1218, eff. 7-1-11.
Official source: Illinois General Assembly. Reproduced from public-domain Illinois statutes; confirm against the official source for the current text. Not legal advice.