Overview

• What: Toxic Process Gases (TPGs)
• Who: Workers who are at risk of exposure to TPGs, and their employers
• Why: To protect workers and others from the dangers of hazardous release and subsequent hazardous exposure to a TPG
• How: Click on our “Share your feedback” button to provide comments or feedback
• Key topics: Toxic process gases, TPG, TPGs, hazardous exposure, anhydrous ammonia, chlorine, chlorine dioxide, ethylene oxide, ozone, sulfur dioxide, agriculture, recreational facilities, fertilizer

Summary

Toxic process gases (TPGs) are dangerous substances produced or used in workplaces. The proposed amendments make changes to what is considered to be a toxic process gas, as well as how toxic process gases are used, handled, and controlled to help keep workers safe. By better assessing the hazards and risks associated with a toxic process gas, and improving control measures, these proposed regulations enable employers to better protect workers.

The amendments clarify terms and definitions, repeal exclusions for ozone generators on fishing vessels and for anhydrous ammonia fertilization systems in agriculture.

Feedback from workers and employers who use TPGs will help ensure the proposed amendments meet WorkSafeBC’s goal of increased worker safety.

How you can share your feedback

To learn more about the proposed amendments, please review the detailed information on the consultation page, where a strikethrough version of the changes is also included. You can provide feedback online, by email, or by mail until 4:30 pm on Wednesday, October 22, 2025.

How your contributions make a difference

Your feedback will help understand if the proposed amendments will be effective and if additional changes are needed.

Learn more

Consultation page