Glycol: guidelines overview

The glycol guidelines have been in effect since January 20, 1994.


The guidelines recommend a concentration limit for the discharge of glycols to surface water resulting from aircraft de-icing and anti-icing activities.

Target audience

The guidelines apply to federal airports and the responsible federal department (Transport Canada).

Adopting the guidelines

If your facility is a federal airport and the guidelines apply to your facility, you are encouraged to:

The federal department responsible for federal airports is encouraged to:

Read the guidelines

Glycol guidelines


An annual report should be submitted to Environment and Climate Change Canada before September 30 following the end of the de-icing season to which it applies. 

Performance results to date

Performance measurement has not yet been conducted, however, we continue to review Transport Canada’s annual reports and are monitoring the use of glycol by airports.

Related information

Contact us

Products Division
Environment and Climate Change Canada
351 St-Joseph Boulevard
Gatineau QC  K1A 0H3

Phone: 1-888-391-3426

Report a problem or mistake on this page
Please select all that apply:

Thank you for your help!

You will not receive a reply. For enquiries, contact us.

Date modified: