Canada Gazette, Part I, Volume 160, Number 21: GOVERNMENT NOTICES
May 23, 2026
DEPARTMENT OF THE ENVIRONMENT
CANADIAN ENVIRONMENTAL PROTECTION ACT, 1999
Order 2026-87-05-02 Amending the Non-domestic Substances List
Whereas, under subsections 87(1) and (5) of the Canadian Environmental Protection Act, 1999 footnote a, the Minister of the Environment has added the substances referred to in the annexed Order to the Domestic Substances List footnote b;
Therefore, the Minister of the Environment makes the annexed Order 2026-87-05-02 Amending the Non-domestic Substances List under subsections 87(1) and (5) of the Canadian Environmental Protection Act, 1999 footnote a.
Ottawa, May 11, 2026
Julie Dabrusin
Minister of the Environment
Order 2026-87-05-02 Amending the Non-domestic Substances List
Amendment
1 Part I of the Non-domestic Substances List footnote 1 is amended by deleting the following:
- 9011-12-5
- 65870-97-5
- 68525-95-1
Coming into Force
2 This Order comes into force on the day on which Order 2026-87-05-01 Amending the Domestic Substances List comes into force.
DEPARTMENT OF HEALTH
CANADIAN ENVIRONMENTAL PROTECTION ACT, 1999
Health-based air quality objectives for arsenic
Pursuant to subsection 55(3) of the Canadian Environmental Protection Act, 1999, the Minister of Health hereby gives notice of the proposed health-based air quality objectives for arsenic. The proposed health-based air quality objectives (HBAQOs) are available starting May 22, 2026, on Health Canada’s Environment and workplace health consultations web page. Any person may, within 60 days after publication of this notice, file with the Minister of Health written comments on the proposed HBAQOs. Comments must be sent by email to air@hc-sc.gc.ca.
May 22, 2026
Greg Carreau
Director General
Safe Environments Directorate
On behalf of the Minister of Health
ANNEX
About the health-based air quality objectives
Health-based air quality objectives (HBAQOs) are non-regulatory values that represent a concentration of an air pollutant, averaged over a recommended time frame, below which health risks are expected to be minimal. They take into consideration short-term and long-term exposure to air pollutants, and that specific populations may be disproportionally impacted due to their health status, the community they live in or other factors. The HBAQOs are voluntary in nature and intended to assist all levels of government and other partners that deal with air quality in assessing risk, and to inform risk management actions and risk communication.
Arsenic is a natural element found in its inorganic form within the earth’s crust. Releases of arsenic to ambient air, predominantly as inorganic arsenic trioxide (As2O3) dusts, can occur during activities such as mining, smelting, energy production, incineration of waste products and during wildfire events. Proximity to sources is an important consideration for population exposure to arsenic in ambient air. The proposed HBAQOs are applicable to all inorganic forms of arsenic (as elemental As) and do not include organic arsenic compounds or arsine gas.
The document for public consultation provides an overview of the sources of and exposure to arsenic in the ambient air in Canada, reviews the most up-to-date information on the health effects of arsenic, and outlines the approach used to derive corresponding short-term and long-term HBAQOs. The HBAQOs undergo expert peer review prior to public consultation to ensure that they are protective of human health and based on sound science.
| Proposed HBAQOs (for As) | Recommended averaging time | Health effect |
|---|---|---|
| 0.2 µg/m3 | 1 hour | Fetal developmental effects |
| 0.001–0.01 µg/m3 table 1 note 1 | Annual | Lung cancer table 1 note 2 |
Table 1 note(s)
|
||
Health effects
Short-term inhalation of arsenic irritates the respiratory tract and can cause neurological symptoms such as lightheadedness. The most sensitive effects of exposure are seen in the developing fetus, as demonstrated by reduced fetal weight and congenital malformations in offspring of exposed animals. Developmental effects can occur during a brief or specific window of time during pregnancy, which justifies the use of a short averaging time.
Long-term inhalation of arsenic causes respiratory and lung cancers, as shown in smelter workers and experimental animals. Arsenic is a known human carcinogen (International Agency for Research on Cancer, Group 1 carcinogen) and is included in the List of Toxic Substances in Schedule 1 to the Canadian Environmental Protection Act, 1999. There is no level of exposure to arsenic that is considered without health risk. Emerging studies have also described an association between long-term exposure to arsenic and the development of cardiovascular disease and neurological effects such as peripheral neuropathy.
Certain populations are disproportionally exposed to arsenic in contrast to the general population. This includes people residing in areas with higher natural background concentrations and/or living near current or historical industrial releases of arsenic described above. Here, exposure to higher levels of arsenic relative to the general population may occur via ambient air, in addition to indoor dust, drinking water and country foods. It should be noted that there is considerable variation in how arsenic is processed in the body, resulting in certain populations being more adversely affected due to underlying biological susceptibility.
DEPARTMENT OF PUBLIC SAFETY AND EMERGENCY PREPAREDNESS
CRIMINAL CODE
Designation as fingerprint examiner
Pursuant to subsection 667(5) of the Criminal Code, I hereby designate the following person of the Royal Canadian Mounted Police as a fingerprint examiner:
- Jessica Calvert
Ottawa, April 28, 2026
Amy Johnson
Director General
Crime Prevention Branch
INNOVATION, SCIENCE AND ECONOMIC DEVELOPMENT CANADA
RADIOCOMMUNICATION ACT
Notice No. DGSO-001-26 — Consultation on Amendments to the Tower Siting Process and Decision on Roaming, Tower Sharing and Annual Reporting Requirements for Terrestrial Licences
The intent of this notice is to announce the publication of the Consultation on Amendments to the Tower Siting Process and Decision on Roaming, Tower Sharing and Annual Reporting Requirements for Terrestrial Licences, and undertake a public consultation on proposed amendments to Client Procedures Circular CPC-2-0-03 — Radiocommunication and Broadcasting Antenna Systems, issue 6. Innovation, Science and Economic Development Canada (ISED) is proposing certain updates to the procedures for the siting of antenna systems, specifically requirements to notify the public about the construction of towers and to introduce an online tower information system.
Submitting comments
To ensure consideration, parties should submit their comments no later than July 16, 2026. Reply comments will be accepted until August 25, 2026. Respondents are requested to provide their comments in electronic format (Microsoft Word or Adobe PDF) to spectrumoperations-operationsduspectre@ised-isde.gc.ca and to specify the section and subsection for ease of reference. Soon after the close of the comment period, all comments will be posted on ISED’s Spectrum management and telecommunications website. All comments will be reviewed and considered by ISED in order to arrive at the final procedures.
All submissions should cite the Canada Gazette, Part I, the publication date, the title and the notice reference number of this notice (DGSO-001-26).
Obtaining copies
Copies of this notice and of documents referred to herein are available electronically on ISED’s Spectrum management and telecommunications website.
Official versions of notices can be viewed on the Canada Gazette website.
May 11, 2026
Geoff Colman
Senior Director
Spectrum Management Operations Branch
PRIVY COUNCIL OFFICE
Appointment opportunities
The Government of Canada is committed to appointing highly qualified individuals to Governor in Council positions through competency-based assessments. Governor in Council appointments are guided by principles of competency, transparency and respect for diversity. These principles ensure appointees are held to the high standards of professionalism, responsibility, and ethical behaviour. High quality and timely appointments ensure that the Government carries out its mandate and achieves its objectives in an efficient manner.
The Government of Canada is currently seeking applications from Canadians across the country who are interested in the following positions.
Current opportunities
The following opportunities for appointments to Governor in Council positions are currently open for applications. Every opportunity is open for a minimum of two weeks from the date of posting on the Governor in Council appointments website.
| Position | Organization | Closing date |
|---|---|---|
| Chair of the Board | Canada Revenue Agency | May 25, 2026 |
| Chief Executive Officer | Canadian Air Transport Security Authority | May 19, 2026 |
| Director | Canadian Museum of Immigration at Pier 21 | May 28, 2026 |
| Trustee | Canadian Museum of Nature | June 15, 2026 |
| Chairperson | Canadian Race Relations Foundation | June 4, 2026 |
| President | Canadian Space Agency | May 21, 2026 |
| Chief Administrator | Courts Administration Service | May 25, 2026 |
| Chairperson | Farm Credit Canada | May 28, 2026 |
| Director | Farm Credit Canada | May 28, 2026 |
| Chairperson | The Federal Bridge Corporation Limited | May 21, 2026 |
| Member | National Farm Products Council | May 20, 2026 |
| Member | National Research Council of Canada | May 18, 2026 |
| Deputy Administrator of the Ship-source Oil Pollution Fund | Ship and Rail Compensation Canada | June 15, 2026 |
| Chairperson | Veterans Review and Appeal Board | June 1, 2026 |