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New Canadian OHS Laws Mandate CSA Z12885-Compliant Exposure Control for Engineered Nanomaterial Handlers

OHS Canada Canada
Overview
New Occupational Health and Safety (OHS) laws enacted in Canada in 2026 mandate that employers manufacturing, handling, or using engineered nanomaterials must establish or update exposure control programs in accordance with CSA Z12885 requirements. This regulatory enhancement is a critical measure to address potential health risks associated with nanomaterials and ensure worker safety. Companies are now required to review their existing safety management systems and comply with the new legal requirements.
In Depth

Key Findings

New Occupational Health and Safety (OHS) laws, enacted in Canada in 2026, now mandate that employers involved in the manufacturing, handling, or use of engineered nanomaterials must establish or update their exposure control programs in accordance with the requirements of the CSA Z12885 standard. This legislative change represents a crucial step in strengthening proactive approaches to the potential health risks posed by nanomaterials and enhancing workplace safety.

Technical / Clinical Details

The CSA Z12885 standard provides specific guidelines for managing worker exposure to nanomaterials during their production, handling, and use. These guidelines encompass risk assessment, implementation of engineering controls (e.g., local exhaust ventilation, enclosed systems), selection of personal protective equipment (PPE), monitoring programs, training, and emergency response plans. Due to their minute size and unique physicochemical properties, nanomaterials can potentially enter the human body via inhalation, dermal contact, or ingestion pathways, and some nanoparticles have been shown to exert adverse effects at the cellular level. Therefore, stringent exposure control is essential to minimize the risks of pulmonary diseases, inflammatory responses, and other health issues. The new OHS laws legally oblige employers to implement these preventive measures based on scientific findings.

Background & Context

While nanotechnology has driven innovative advancements across many fields—including electronics, medicine, energy, and materials science—concerns about the safety of nanomaterials have simultaneously grown. Regulatory bodies worldwide are developing frameworks to assess the potential risks of nanomaterials and implement appropriate control measures. Canada’s new OHS laws align with international trends, such as the OECD’s recently published test guidelines for nanomaterials (TG 127: Dustiness, TG 322: Solubility and Dissolution Rate), forming part of a broader movement to standardize safety management throughout the nanomaterial lifecycle. This ensures that the sustainable development of the nanomaterial industry is supported while prioritizing worker health and safety, meeting societal demands.

Strategic Significance & Outlook

The enforcement of this new OHS law will prompt nanomaterial-related companies in Canada to review and improve their existing health and safety management systems. Businesses will need to conduct expert risk assessments and, where necessary, modify engineering controls, adjust operational procedures, and provide additional training to employees. This is expected to lead to safer working environments and reduce the risk of occupational incidents in the nanomaterial industry. In the long term, such regulatory enhancements could establish best practices for the safe handling of nanomaterials, serving as an international model for balancing innovation with responsible development. Canada’s initiative is likely to influence the direction of nanomaterial regulations in other countries as well.

Source: https://ohsinsider.com/the-8-most-important-new-ohs-laws-of-2026-how-to-comply-with-them/

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