Introduction
If you sell products containing lithium batteries, aerosols, flammable liquids, or other hazardous materials, shipping to Canada can feel like navigating a minefield.
One wrong classification, missing document, or improper package – and your shipment is held at the border, returned to origin, or worse, you face fines from Transport Canada.
But here’s the good news: Dangerous goods (DG) shipping to Canada is completely manageable if you work with a logistics partner who understands the regulations. DH Supply Chain operates DG-certified warehouses in Toronto and Calgary, with trained drivers and carrier relationships specifically for hazardous materials.
In this guide, we’ll cover:
- What dangerous goods are (UN classifications) and which are most common for e‑commerce
- Canada’s regulatory framework: TDG Act, Clearance Memorandum D-19, etc.
- Packaging and labeling requirements step by step
- Carrier options for DG in Canada (who accepts what)
- Storage requirements for DG warehouses
- How DH Supply Chain handles DG shipping end‑to‑end
- Common mistakes that trigger inspections and fines
Let’s get into it.
What Are Dangerous Goods (DG)? Common Classes for E‑Commerce
Canada uses the UN Model Regulations for classifying dangerous goods. Transport Canada enforces the Transportation of Dangerous Goods (TDG) Act for all shipments entering, leaving, or moving within Canada.
For e‑commerce sellers, these are the most relevant DG classes:
| UN Class | Description | Common E‑Commerce Products | Allowed in Canada? |
|---|---|---|---|
| Class 3 | Flammable liquids | Perfumes, nail polish removers, hand sanitizers, paints | Yes – with restrictions |
| Class 4.1 | Flammable solids | Matches, certain adhesives | Yes – limited quantities |
| Class 5.1 | Oxidizers | Hair bleaches, pool chemicals | Yes – with special permits |
| Class 8 | Corrosives | Battery acid, drain cleaners, some industrial cleaners | Yes – packaging critical |
| Class 9 | Miscellaneous | Lithium batteries (UN3480, UN3481, UN3090, UN3091), dry ice, air bags, e‑cigarettes | Yes – very common |
| Class 2.1 | Flammable gases | Aerosols (spray paint, hairspray, deodorant) | Yes – limited quantities |
| Class 2.2 | Non-flammable gases | Aerosols (non-flammable), CO2 cartridges | Yes |
Most common DG product for Canadian e‑commerce sellers: Lithium batteries (UN3481 – lithium ion batteries contained in equipment, e.g., power banks, laptops, smartwatches, vacuum cleaners).
Important: Amazon Canada has its own DG restrictions. Even if Transport Canada allows a product, Amazon may prohibit it from FBA. Always check Amazon’s “Dangerous Goods” policy page before sending DG to an FBA center.
Canada’s DG Regulatory Framework: What You Must Know
Three key documents govern dangerous goods shipping to Canada:
1. TDG Act & Regulations (Transport Canada)
The TDG Act applies to all shipments of dangerous goods in Canada, including imports. It covers:
- Classification
- Packaging requirements (UN-certified packaging)
- Labeling and marking
- Documentation (shipping documents, safety data sheets)
- Training requirements for anyone offering or transporting DG
What this means for you: You cannot simply hand a box with lithium batteries to a carrier. The shipper (or your 3PL) must be properly trained and use DG-approved packaging.
2. CBSA Memorandum D-19 (Import of Dangerous Goods)
Canada Border Services Agency (CBSA) enforces DG rules at the border. Memorandum D-19 requires:
- Accurate DG declaration on commercial invoices
- Proper UN packaging visible upon inspection
- Sometimes, a letter of recommendation from Health Canada or other agencies
What this means for you: If your DG shipment is selected for inspection at the border and fails, it will be held until corrected – or returned.
3. Specific Carrier Rules
Each carrier has its own DG acceptance policies. For example:
- UPS Canada accepts limited quantities of Class 9 (lithium batteries) and some Class 3, but requires a DG contract.
- Purolator accepts limited quantities of certain classes but has strict volume limits.
- Canada Post has very limited DG acceptance (mainly small lithium batteries in equipment, with strict watt-hour limits).
✅ DH advantage: We maintain DG service agreements with multiple carriers and know exactly which carrier accepts which DG class, quantity, and packaging type. You don’t need to navigate this yourself.
Packaging & Labeling Requirements (Step by Step)
Proper packaging is the single most important factor in DG compliance. Here’s what Transport Canada requires:
Step 1 – Use UN-Certified Packaging
| DG Class | Packaging Type | UN Marking Example |
|---|---|---|
| Lithium batteries | 4G fiberboard box or 4GV box | UN 4G/Y9/S/21/USA/M1234 |
| Flammable liquids | 1A1 steel drum or 1H1 plastic jerrican | UN 1H1/Y1.5/100/21/CAN/DH |
| Aerosols | Inner containers + outer UN box | UN 4G/Y6/S/21/CAN/DH |
The UN marking includes:
- Packaging code (e.g., 4G = fiberboard box)
- Packing group (X = high, Y = medium, Z = low danger)
- Specific gravity/ pressure rating (for liquids/gases)
- Year of manufacture
- Country and manufacturer
Step 2 – Proper Inner Packaging
- Lithium batteries: Each battery must be placed in an inner packaging (e.g., plastic bag, blister pack) that prevents short circuits. Terminals must be protected (tape or recessed).
- Flammable liquids: Inner containers (glass, plastic, metal) must be capped and absorbent material added.
- Aerosols: Must be secured to prevent movement, with sufficient separation between cans.
Step 3 – Apply DG Labels
| Label | Required For | Placement |
|---|---|---|
| Class 9 (Lithium battery) | UN3480, UN3481, UN3090, UN3091 | On at least two opposite sides of outer package |
| Class 3 (Flammable liquid) | Flammable liquids | Same – two sides |
| Class 2.1 (Flammable gas) | Aerosols (spray paints, etc.) | Same |
| Cargo Aircraft Only | If shipped by air (most DG) | Same |
| Limited Quantity (LQ) mark | For small quantities under exceptions | Same |
Step 4 – Shipping Document (DG Declaration)
A DG shipment must be accompanied by a shipping document that includes:
- Shipper and consignee names & addresses
- UN number (e.g., UN3481)
- Proper shipping name (e.g., “Lithium ion batteries contained in equipment”)
- Class (e.g., 9)
- Packing group (if applicable)
- Number and type of packages
- Total quantity
- Emergency contact (24/7 number)
Step 5 – Safety Data Sheet (SDS)
An SDS must be available for each DG product. It should be stored at the warehouse and available to carriers and emergency responders.
✅ DH advantage: We provide DG packaging, labeling, and documentation services. You send us your products (in basic retail packaging), and we repack them into UN-certified boxes, apply all labels, and generate the shipping documents. You don’t need to become a DG expert.
Carrier Options for Dangerous Goods in Canada
Not all carriers accept dangerous goods – and those that do have different rules.
| Carrier | DG Classes Accepted | Volume Limits | Contract Required? | Best For |
|---|---|---|---|---|
| UPS Canada | 3, 4.1, 5.1, 8, 9, 2.1, 2.2 (limited) | Up to 30 kg per package | Yes (DG agreement) | Small to medium DG shipments to businesses |
| Purolator | 3, 8, 9, limited 2.1/2.2 | Up to 25 kg per package | Yes | Canadian business addresses |
| FedEx Canada | 3, 4.1, 5.1, 8, 9, 2.1, 2.2 | Up to 45 kg per package | Yes | Sensitive or time‑critical DG |
| Canada Post | Very limited (UN3481 small lithium batteries only) | ≤2 batteries, ≤20 Wh per battery | No | Very small consumer DG parcels |
| DHL (for inbound only) | All classes (but only international, not domestic) | Varies | Yes | Inbound DG from China to Canada |
| LTL carriers (e.g., Manitoulin, Day & Ross) | Most classes (better for pallets) | Pallet quantities | Yes | Bulk DG shipments to FBA or retailers |
Important Distinction: Air vs. Ground
- Air (including expedited parcel): Stricter limits. Many DG classes are “cargo aircraft only” – cannot go on passenger aircraft. Watt-hour limits for lithium batteries: ≤20 Wh per cell, ≤100 Wh per battery for passenger; higher for cargo.
- Ground (truck): More permissive. Almost all DG classes allowed with proper packaging and documentation. No watt-hour limits for lithium batteries (but packaging still required).
Most Canadian e‑commerce DG shipments go by ground – delivery times are 2‑5 days to most addresses, and the regulatory burden is lower.
✅ DH advantage: We maintain DG agreements with UPS, Purolator, FedEx, and multiple LTL carriers. When you send DG orders through us, we automatically route to the appropriate carrier based on class, quantity, and destination.
👉 [Learn more about our dangerous goods warehousing →](link to article 5 – Toronto/Calgary DG)
Dangerous Goods Storage: What a DG-Certified Warehouse Must Have
Storing dangerous goods is different from storing regular inventory. A DG warehouse must have:
Physical Requirements
| Requirement | DH Supply Chain Compliance |
|---|---|
| Segregated storage areas | Separate zones for different DG classes (e.g., Class 3 away from Class 5.1) |
| Spill containment | Secondary containment (trays, pallet sumps, or berms) for liquids |
| Fire suppression | Appropriate systems for the DG class (sprinklers, foam, or dry chemical) |
| Ventilation | For gases and flammable liquids |
| Temperature control | For heat‑sensitive DG (e.g., some lithium batteries) |
| Security | Locked or access‑controlled areas |
| Emergency equipment | Spill kits, fire extinguishers, PPE, eyewash stations |
Administrative Requirements
| Requirement | DH Supply Chain Compliance |
|---|---|
| Staff training | All DH staff in DG warehouses are TDG-certified |
| Safety Data Sheets (SDS) | Maintained for every DG SKU |
| Emergency response plan | In place, with local fire department coordination |
| Inventory tracking | WMS tracks DG by class, lot, and expiry (if applicable) |
| Waste disposal | For damaged or expired DG |
✅ DH advantage: Our Toronto and Calgary warehouses are fully DG-certified. We can store all the common e‑commerce DG classes (Class 3, 8, 9, 2.1, 2.2) and handle pick, pack, and ship. Vancouver, Montreal, and Edmonton are not DG-certified – but we can rail DG from Toronto/Calgary to those cities for last‑mile delivery (when permitted).
Client example: A Chinese manufacturer of power banks stores 10,000 units of UN3481 products in our Toronto DG zone. Weekly, we pick, pack, and ship DTC orders via UPS Ground to customers across Canada. The client has zero compliance issues – we handle all TDG paperwork.
How DH Supply Chain Handles DG End‑to‑End
Here’s our complete DG workflow:
Phase 1: Inbound from China or US
- You ship your DG products to our Toronto or Calgary warehouse (address provided).
- We receive and verify against your commercial invoice and SDS.
- We store the products in the appropriate DG zone, with WMS tracking by UN number and class.
Phase 2: Order Fulfillment (One‑Dropship or FBA Prep)
- Your store sends an order to our WMS (Shopify, Amazon, etc.).
- Our DG-trained picker retrieves the product from the DG zone.
- We repack the product into UN-certified outer packaging (if needed for shipment).
- We apply DG labels (Class 9, etc.) and “Cargo Aircraft Only” if shipping by air.
- We generate the DG shipping document with emergency contact information.
- The package is routed to the appropriate carrier (ground is preferred).
Phase 3: Returns (Reverse Logistics)
If a customer returns a DG product, we:
- Receive at our DG zone (separate from regular returns).
- Inspect for damage or leakage.
- If sellable: repackage, relabel, restock.
- If unsellable: dispose through licensed DG waste vendor (we coordinate).
Real example: A seller of rechargeable hand warmers (Class 9 lithium batteries) uses DH for DG fulfillment. Their average order‑to‑delivery time is 3 days (ground) – 15 days faster than shipping from China. Their returns rate is 4%, and 70% of returns are resold after DH inspection and repack.
Common DG Mistakes (And How DH Prevents Them)
Mistake 1 – Using Non‑UN Packaging
Standard cardboard boxes are not UN-certified. If CBSA inspects and sees a DG label on a non‑UN box, shipment is held.
✅ DH solution: We keep inventory of UN-certified boxes for all common DG classes. We repack your products as needed.
Mistake 2 – Exceeding Quantity Limits
Each DG class has strict quantity limits per package (e.g., lithium batteries: ≤2 batteries per inner package for certain exceptions).
✅ DH solution: Our WMS knows the limits. We won’t overpack.
Mistake 3 – Missing or Incorrect Documentation
Missing emergency contact, wrong UN number, missing SDS – all cause delays.
✅ DH solution: We generate the complete DG shipping document for every order. We also maintain SDS on file.
Mistake 4 – Using the Wrong Carrier for the Class
Try to ship Class 2.1 flammable gas aerosols via Canada Post? They’ll reject it.
✅ DH solution: Our carrier routing logic knows which carrier accepts which DG class and quantity.
Mistake 5 – No Training for Staff
If your warehouse staff (or your 3PL’s staff) handle DG without TDG certification, you’re liable.
✅ DH solution: All DH DG warehouse staff are TDG-certified and recertified annually. We provide certificates upon request.
Frequently Asked Questions (FAQ)
Q1: Does Amazon Canada accept dangerous goods for FBA?
Yes, but with strict limits. Amazon Canada accepts limited quantities of certain DG classes (Class 3, 8, 9) to designated FBA centers. You must complete Amazon’s Dangerous Goods Review process for each ASIN. Contact us – we can help with FBA DG compliance.
Q2: What happens if CBSA inspects my DG shipment?
If the shipment is properly packaged, labeled, and documented, inspection typically adds 1‑2 days. If there’s an issue, CBSA holds the shipment and notifies the importer (or broker). We act as your broker and work with CBSA to resolve.
Q3: Can you ship dangerous goods to residential addresses?
Yes, for most DG classes. Carriers like UPS and Purolator deliver DG to residential addresses, but the package must be left with an adult (no safe drop). Certain high‑risk DG classes may be restricted to commercial addresses.
Q4: How much does DG warehousing cost compared to regular?
DG storage is typically 20‑40% higher than regular storage due to segregation requirements, safety equipment, and specialized staff. Contact us for current rates.
Q5: Can you help me classify my product?
Yes. Send us the Safety Data Sheet (SDS) and product specifications. We can determine the UN number, proper shipping name, class, and packaging group.
Q6: Do you offer DG training for my staff?
We don’t offer public training, but we can refer you to Transport Canada‑approved training providers. Our own staff are certified through recognized programs.
Q7: What’s the difference between UN3480, UN3481, UN3090, and UN3091?
- UN3480: Lithium ion batteries (rechargeable), not contained in equipment – stricter rules
- UN3481: Lithium ion batteries contained in equipment – common for most electronics
- UN3090: Lithium metal batteries (non‑rechargeable), not in equipment
- UN3091: Lithium metal batteries contained in equipment
Q8: Can you handle very large DG shipments (full pallets) to Amazon FBA or retailers?
Yes. We coordinate with LTL carriers that accept palletized DG. We handle the full pallet packaging, labeling, and documentation.
Ready to Ship Dangerous Goods to Canada Safely?
Don’t let DG compliance stop you from selling high‑demand products in Canada. With DH Supply Chain’s DG‑certified warehouses in Toronto and Calgary, trained staff, and carrier relationships, you get a complete end‑to‑end solution.
We’ll help you:
- Determine your product’s DG classification
- Store inventory in compliant DG zones
- Pick, pack, and ship to customers or Amazon FBA
- Handle returns and disposal
Get a free DG consultation →
Send us your product list and Safety Data Sheets (SDS). We’ll provide classification, packaging recommendations, and a custom pricing proposal.
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