Massachusetts § 303N - Sale of engine coolant or antifreeze not containing a bittering agent prohibited

Full text of Massachusetts Massachusetts General Laws § 303N — Sale of engine coolant or antifreeze not containing a bittering agent prohibited, with citation guidance and answers to common questions.

§ 303N. Sale of engine coolant or antifreeze not containing a bittering agent prohibited

Section 303N. Notwithstanding any general or special law, rule or regulation to the contrary, except as may be otherwise provided in this section, engine coolant or antifreeze containing more than 10 per cent ethylene glycol that is manufactured after January 1, 2011 may not be sold in the commonwealth unless said engine coolant and antifreeze 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.

A manufacturer of a product for sale in the commonwealth subject to this section shall maintain a record of the trade name, scientific name and active ingredients of the bittering agent used pursuant to this section, and that information shall be available to the public upon request.

A manufacturer, processor, distributor, recycler or seller of an engine coolant or antifreeze that is required to contain an aversive agent, as described in the first paragraph, shall not be liable for personal injury or death incurred by a resident of the commonwealth, or for any property damage, or damage to the environment, including natural resources, or economic loss that results from the inclusion of denatonium benzoate in the engine coolant or antifreeze, provided that the inclusion of denatonium benzoate is present in concentrations described and mandated by the first paragraph. The limitation on liability, as provided in this paragraph, shall not apply to a particular liability to the extent that the cause of that liability is found to be unrelated to the inclusion of denatonium benzoate in the engine coolant or antifreeze.

A city or town, or any subdivision thereof, shall not establish or continue in effect a local ordinance or policy concerning retail containers of engine coolant or antifreeze sold in that city or town, which in any manner shall limit or otherwise prohibit the inclusion of a bittering agent in the engine coolant or antifreeze that is in any way different from, or in addition to, the provisions of this section.

This section shall not prevent the sale of a motor vehicle in the commonwealth where engine coolant or antifreeze may be found in the radiator of the motor vehicle that does not meet the provisions of the first paragraph of this section.

A person who violates this section shall be subject to the penalty set forth in section 303M for each violation.

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

Frequently Asked Questions About Massachusetts § 303N

What does Massachusetts General Laws § 303N cover?

Section 303N ("Sale of engine coolant or antifreeze not containing a bittering agent prohibited") is part of the Massachusetts General Laws, the codified statutory law of Massachusetts. 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 Massachusetts § 303N?

A common citation format is "Massachusetts General Laws § 303N" (Massachusetts). 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 Massachusetts law?

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

How does Massachusetts § 303N apply to my situation?

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

Sources & Verification

Not legal advice. Verify against the official source and consult a licensed attorney in Massachusetts.