Current Regulations

Multi-sector Air Pollutants Regulations (SOR/2016-151)

The Multi-Sector Air Pollutants Regulations (i.e., the Regulations) require owners and operators of specific industrial facilities and equipment types to meet consistent performance standards across the country. The objectives of the Regulations are to:

  • Limit the amount of nitrogen oxides (NOX) emitted from modern (new) and pre-existing (existing), gaseous-fuel-fired non-utility boilers and heaters used in many industrial facilities
  • Limit the amount of NOX emitted from modern and pre-existing stationary spark-ignition gaseous-fuel-fired engines used by many industrial facilities (e.g., those used for gas compression or back-up generators)
  • Limit the amount of NOx and sulphur dioxide (SO2) emitted from cement kilns

The Regulations are part of the federal government's contribution to the implementation of the Air Quality Management System (AQMS) under the auspices of the Canadian Council of Ministers of the Environment (CCME). The AQMS provides a harmonized approach for governments to work collaboratively to improve air quality in Canada and protect the health of Canadians and the environment. The AQMS includes:

  • Canadian Ambient Air Quality Standards (CAAQS), which provide the drivers for air quality improvement across the country
  • A framework for managing air quality through local air zones and regional airsheds
  • Base-level Industrial Emission Requirements (BLIERs) that set a base-level of performance for major industrial sectors and equipment types
  • An intergovernmental working group to improve collaboration and reduce emissions from mobile sources

Contact e-mails for different parts of the Regulations


Contact Information:

General Inquiries
Environment and Climate Change Canada
351 Saint-Joseph Boulevard
Gatineau, QC  K1A 0H3
Phone number: 819-938-3860; 1-800-668-6767 (in Canada only / au Canada seulement)


Information to Help in Complying with the Regulations:

The contents of regulations and other regulatory instruments can be confusing for those who are not skilled in reading legal documents, or who may have difficulty understanding technical content. To help regulatees comply with regulatory requirements, materials that present legal or technical content in a more easily understandable format are provided. See "Other Useful Links" below.

Publication Information:

Canada Gazette Date published Volume and number
Part 1: 2014-06-07 Vol. 148, No. 23
Part 2: 2016-06-29 Vol. 150, No. 13

Regulatory Text in HTML and PDF:

Other Useful Links:

For the Regulations, compliance-related materials include:

Date modified: