What is the main difference between WHMIS and TDG regulations?

WHMIS (Workplace Hazardous Materials Information System) governs how hazardous products are used, handled, and stored within the workplace. Its focus is on worker safety through information and training. TDG (Transportation of Dangerous Goods) regulates the movement of hazardous materials between locations, focusing on packaging, placarding, and documentation during transport.

Do I need a completely separate building for my hazardous materials?

Not always. The requirement depends on the type and quantity of materials you are storing. The National Fire Code of Canada allows for dedicated, separated storage rooms within a larger building, provided they are constructed with the appropriate fire-rated walls, doors, ventilation, and spill containment. A detailed assessment is needed to determine the right solution for your inventory.

How often should we review our Safety Data Sheets (SDS)?

Legally, suppliers must update the SDS when significant new data becomes available, and employers must ensure their SDS collection is not more than three years old. As a best practice, you should have a process to review your entire SDS library annually to ensure all documents are current, accessible, and that your storage and handling procedures still align with the information provided.

Can any pallet racking be used for chemical drum storage?

No, absolutely not. Standard pallet racking is not designed to handle the unique risks of chemical storage. You need specialized industrial racking that may feature chemical-resistant coatings, solid or grated steel decking to prevent containers from falling through, and integration with spill containment systems. Using the wrong racking is a major safety and compliance violation.

What is the biggest mistake companies make with hazardous material storage in Canada?

One of the most common and dangerous mistakes is improper segregation. Storing incompatible chemicals, like acids and bases, or oxidizers and flammables, too close together can lead to violent chemical reactions, fires, or the release of toxic gas in the event of a spill. This often stems from a lack of understanding of the segregation requirements outlined in the SDS and fire codes.

Hazardous Material Storage Warehouse Canada | MTLI Guide

Storing hazardous materials in your Canadian warehouse requires strict adherence to complex regulations. This guide breaks down the essential compliance frameworks and best practices to protect your team, facility, and bottom line.

**WHMIS (Workplace Hazardous Materials Information System):** This is the national standard for communicating workplace hazards. WHMIS 2015, which aligns with the global GHS standard, mandates specific requirements for supplier labels, Safety Data Sheets (SDS), and worker education programs. For a warehouse manager, WHMIS is the foundational language of chemical safety.
**National Fire Code of Canada (NFCC):** The NFCC provides the technical requirements for storing flammable and combustible liquids, among other hazardous substances. It dictates critical facility elements like maximum storage quantities, fire separation, ventilation rates, and the types of fire suppression systems required.
**Transportation of Dangerous Goods (TDG) Regulations:** While primarily focused on the transport of materials, TDG regulations are crucial for your shipping and receiving docks. Your team must be trained to recognize TDG placarding and documentation to ensure hazardous materials are handled correctly from the moment they arrive to the moment they leave.
**Provincial/Territorial OHS Regulations:** Each province and territory has its own Occupational Health & Safety legislation that builds upon federal guidelines. These regulations often contain more specific rules for worker exposure limits, personal protective equipment (PPE), and incident reporting. You must be compliant at both the federal and provincial levels.

**Specialized Racking:** Using <a href="/services/storage-racking">chemical-resistant storage and racking systems</a> is critical. This may involve specific coatings or construction from non-reactive materials like heavy-duty steel or specialized polymers.
**Spill Containment:** Secondary containment is a must. This can be achieved through containment pallets, shelving with lipped edges, or a purpose-built concrete bund/dike around the storage area capable of holding a percentage of the total liquid volume (e.g., 110% of the largest container).
**Secure Cabinets:** For smaller quantities of flammable or corrosive materials, approved safety cabinets provide a fire-resistant, contained, and secure storage solution.

**Specialized Suppression Systems:** This could include foam, dry chemical, or inert gas systems designed for specific chemical classes.
**Fire-Rated Construction:** The storage area must often be separated from the rest of the warehouse by fire-rated walls and doors to contain a potential fire for a specified duration (e.g., 2-hour rating).
**Explosion-Proof Components:** All electrical equipment within the hazmat area, including lighting, forklifts, and sensors, must be intrinsically safe or explosion-proof to prevent ignition of flammable vapours.

**Design & Layout:** Our experts design compliant <a href="/services/storage-racking">storage and racking systems</a> that are optimized for your specific products and workflow.
**Construction & Retrofitting:** Our <a href="/services/construction-general-contracting">construction division</a> builds or retrofits your facility with the necessary fire-rated walls, spill containment, and ventilation systems.
**Automation & Integration:** We can safely implement <a href="/services/warehouse-automation">automation solutions</a> that enhance safety and efficiency in your hazmat operations.
**Execution Excellence:** Our team of 100+ professionals manages the entire project from design to commissioning, ensuring a seamless, compliant, and on-budget result.

Hazmat Storage Canada: A Compliance Guide

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