Federal regulationCanada Gazette, Part IComment Period Closed
Regulations Amending the Multi-Sector Air Pollutants Regulations
Sponsoring body: Environment, Dept. of the, and Dept. of HealthIntroduced March 8, 2025Last checked August 25, 2026
Read the official text on gazette.gc.caOfficial version — Canada Gazette, Part I
What this regulation does
These amendments fix testing rules for industrial boilers and heaters under the Multi-Sector Air Pollutants Regulations, giving operators more flexibility and time (until December 31, 2025) to properly test their equipment's nitrogen oxides (NOx) emissions so they can be correctly classified — avoiding being automatically placed in the worst performance class and facing costly upgrade requirements.
Plain-language summary by Legisail.
Business impact
Compliance
About 218 industrial boilers and heaters across roughly 83 facilities — predominantly in the oil and gas and oil sands sectors in Alberta, but also in chemicals, pulp and paper, potash, and power generation — were incorrectly stuck in the worst NOx performance class (Class 80) because existing testing rules made it unsafe or impossible to test certain equipment configurations. Without these amendments, operators would face mandatory retrofits or replacements by January 1, 2026, costing anywhere from $46,000 to over $1 million per unit. The amendments save affected businesses an estimated $14.5 million in avoided capital costs by allowing them to retest and reclassify their equipment. Administrative burden is minimal — operators need to spend roughly 30 minutes to 4 hours familiarizing themselves with the new rules, costing about $1.43 per business annually.
Does this apply to you?
Your own business or clients you watch for — tell Legisail what matters and it checks every bill and regulation against it.
Where this regulation is
Proposed
Comment period closed
Final publicationPending
Legisail watches this for you
Tell Legisail about your business and it checks every new bill and regulation against it — you only hear about the ones that matter.
Create a free accountFree · 30 seconds · No credit card