Washington § 19.94.540 - Antifreeze products — Use of aversive agent.

Full text of Washington Revised Code of Washington § 19.94.540 — Antifreeze products — Use of aversive agent., with citation guidance and answers to common questions.

§ 19.94.540. Antifreeze products — Use of aversive agent.

(1) Any engine coolant or antifreeze manufactured or distributed in the state of Washington after January 1, 2010, that contains more than ten percent ethylene glycol shall contain denatonium benzoate at a minimum of thirty parts per million and a maximum of fifty parts per million as an aversive agent so as to render the product unpalatable.
(2) The requirements of this section apply to manufacturers, packagers, distributors, recyclers, or sellers of engine coolant or antifreeze, but not to those who install engine coolant or antifreeze for compensation.
(3) A manufacturer of a product subject to this section and RCW 19.94.542 and 19.94.544 shall maintain a record of the trade name, scientific name, and active ingredients of any aversive used under this section. The manufacturer shall make this information available to the public upon request.
[ 2008 c 68 s 1.]

Source: official Washington text · Last verified 2026-08-27

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Frequently Asked Questions About Washington § 19.94.540

What does Revised Code of Washington § 19.94.540 cover?

Section 19.94.540 ("Antifreeze products — Use of aversive agent.") is part of the Revised Code of Washington, the codified statutory law of Washington. It sets out the legal rule or procedure described in the text above. Statutes are amended regularly, so always verify against the official source.

How do I cite Washington § 19.94.540?

A common citation format is "Revised Code of Washington § 19.94.540" (Washington). Legal writing may require the code abbreviation, section number, and year or edition. Match the style required by your court, professor, or publisher.

Is this the official text of Washington law?

No. This page is for research and education and may not include the most recent amendments. For official current law, check the Washington official source linked on this page or consult a licensed Washington attorney.

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Statutes are interpreted in context, and application depends on your specific facts. Only a licensed attorney in Washington can advise on how this section applies to you. Contact your state or local bar association for a referral.

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