Hazmat & Dangerous Goods Lookup: Canada vs U.S.
Search any UN number or product and see the Canadian TDG and U.S. 49 CFR entries side by side, with the placard rule in each country and what to watch on a cross-border load.
44 dangerous goods that move often on freight lanes. Type to search all 2,382 UN and NA numbers.
| Number | Shipping name | Class | PG |
|---|---|---|---|
| GASOLINEGasoline | 3 | II | |
| DIESEL FUELDiesel fuel, heating oil | 3 | III | |
| FUEL, AVIATION, TURBINE ENGINEAviation fuel (jet fuel) | 3 | II, III, I | |
| FLAMMABLE LIQUID, N.O.S.Flammable liquids, not otherwise specified | 3 | I, III, II | |
| ETHANOL with more than 24% ethanol, by volume; ETHYL ALCOHOL SOLUTION with more than 24% ethanol, by volumeEthanol (ethyl alcohol) | 3 | II, III | |
| ACETONEAcetone | 3 | II | |
| ISOPROPANOLIsopropanol (rubbing alcohol) | 3 | II | |
| METHANOLMethanol | 3 | II | |
| PAINT (including paint, lacquer, enamel, stain, shellac, varnish, polish, liquid filler and liquid lacquer base) with…Paint, lacquer, varnish, thinner | 3 | I, II, III | |
| PRINTING INK, flammable, with not more than 20% nitrocellulose, by mass, if the nitrogen content of the…Printing ink | 3 | I, II, III | |
| ADHESIVES containing flammable liquidAdhesives | 3 | I, II, III | |
| RESIN SOLUTION, flammableResin solution | 3 | I, II, III | |
| AEROSOLS containing compressed oxygenAerosols (spray cans) | 2.2 / 2.1 | — | |
| LIQUEFIED PETROLEUM GASESLiquefied petroleum gas (LPG) | 2.1 | — | |
| PROPANEPropane | 2.1 | — | |
| OXYGEN, COMPRESSEDOxygen, compressed | 2.2 | — | |
| NITROGEN, COMPRESSEDNitrogen, compressed | 2.2 | — | |
| CARBON DIOXIDECarbon dioxide (cylinders) | 2.2 | — | |
| ACETYLENE, DISSOLVEDAcetylene | 2.1 | — | |
| AMMONIA, ANHYDROUSAnhydrous ammonia | 2.3 / 2.2 | — | |
| LITHIUM ION BATTERIES (including lithium ion polymer batteries)Lithium-ion batteries (shipped alone) | 9 | — | |
| LITHIUM ION BATTERIES CONTAINED IN EQUIPMENT (including lithium ion polymer batteries)Lithium-ion batteries in or with equipment | 9 | — | |
| LITHIUM METAL BATTERIES (including lithium alloy batteries)Lithium metal batteries (shipped alone) | 9 | — | |
| LITHIUM METAL BATTERIES CONTAINED IN EQUIPMENT (including lithium alloy batteries)Lithium metal batteries in or with equipment | 9 | — | |
| BATTERIES, WET, FILLED WITH ACID, electric storageLead-acid batteries, wet (filled with acid) | 8 | — | |
| BATTERIES, WET, NON-SPILLABLE, electric storageLead-acid batteries, non-spillable | 8 | — | |
| BATTERY-POWERED EQUIPMENTBattery-powered vehicles and equipment | 9 | — | |
| SULFURIC ACID with more than 51% acidSulphuric acid | 8 | II | |
| HYDROCHLORIC ACIDHydrochloric acid | 8 | II, III | |
| SODIUM HYDROXIDE SOLUTIONSodium hydroxide solution (caustic soda) | 8 | II, III | |
| HYPOCHLORITE SOLUTION with more than 7% available chlorineHypochlorite solution (bleach) | 8 | II, III | |
| CORROSIVE LIQUID, N.O.S.Corrosive liquids, not otherwise specified | 8 | I, II, III | |
| HYDROGEN PEROXIDE, AQUEOUS SOLUTION with not less than 20% but not more than 60% hydrogen peroxide (stabilized as…Hydrogen peroxide solution | 5.1 | II | |
| AMMONIUM NITRATE BASED FERTILIZERAmmonium nitrate based fertilizer | 5.1 | III | |
| AMMONIUM NITRATE with not more than 0.2% total combustible material, including any organic substance calculated as…Ammonium nitrate | 5.1 | III | |
| PESTICIDE, LIQUID, TOXIC, N.O.S.Pesticides, liquid, toxic | 6.1 | I, II, III | |
| CHLORINEChlorine | 2.3 | — | |
| ENVIRONMENTALLY HAZARDOUS SUBSTANCE, LIQUID, N.O.S.Environmentally hazardous substance, liquid | 9 | III | |
| ENVIRONMENTALLY HAZARDOUS SUBSTANCE, SOLID, N.O.S.Environmentally hazardous substance, solid | 9 | III | |
| CARBON DIOXIDE, SOLIDDry ice (solid carbon dioxide) | 9 | — | |
| FIREWORKSFireworks (consumer) | 1.4G | II | |
| CARTRIDGES FOR WEAPONS, INERT PROJECTILESmall-arms cartridges (ammunition) | 1.4S | II | |
| VEHICLE, FLAMMABLE GAS POWEREDEngines and vehicles, fuel-powered | 9 | — | |
| FLAMMABLE SOLID, ORGANIC, N.O.S.Flammable solids, organic | 4.1 | III, II |
Sources: Transportation of Dangerous Goods Regulations, Schedule 1 (Transport Canada open data, downloaded 2026-10-19); 49 CFR 172.101 Hazardous Materials Table (eCFR, edition of 2026-10-13). Rule summaries are ours and cite the section they come from.
How to read a result
Each number shows the official entries from Canada’s TDG Schedule 1 and the U.S. Hazardous Materials Table. One number can have several entries, for example one per packing group, or a separate U.S. domestic (“D”) entry.
Under each list you’ll find the placard rule that applies, in plain words with the section it comes from, and the differences worth checking before a load crosses the border: class or packing group differences, Canada’s ERAP index, inhalation hazards, Class 9 placards and U.S. combustible liquids.
Is my product a dangerous good?
Start with section 14 of the Safety Data Sheet. If it gives a UN number, a class and a packing group, the product is regulated for transport and needs a shipping document, the right packaging, labels and, above the thresholds, placards. Search that number here.
If section 14 says the product is not regulated, it usually moves as general freight. Some products are regulated in only one country, such as U.S. combustible liquids in bulk, so check both columns for a cross-border lane.
For the full picture, from shipping documents and ERAP to training, reciprocity at the border and U.S. registration, read our guide to shipping hazmat and dangerous goods between Canada and the U.S.
Questions about the lookup
Where do I find my product’s UN number?
In section 14 (transport information) of the Safety Data Sheet. It lists the UN number, the proper shipping name, the hazard class and the packing group. If section 14 says the product is not regulated for transport, it usually isn’t a dangerous good for road freight, but the shipper should confirm.
Is hazmat classified the same way in Canada and the U.S.?
Mostly. Both follow the UN Model Regulations: the same nine classes, packing groups I to III and UN numbers. The differences are in the details: shipping names, a few classes, Canada’s ERAP requirement, U.S. combustible liquids and reportable quantities, and when placards are required. The lookup flags these for each number.
When does a truck need placards?
In Canada, when the dangerous goods on board are over 500 kg gross, or at any quantity for goods such as toxic gases, water-reactive goods and goods needing an ERAP (TDG s. 4.16.1). In the U.S., Table 1 materials need placards at any quantity; Table 2 materials from 454 kg (1,001 lb) aggregate gross weight (49 CFR 172.504).
Can a load travel across the border under one country’s rules?
Yes, with conditions. Canada accepts road shipments from the U.S. under 49 CFR (TDG s. 9.1), and the U.S. accepts shipments from Canada under the TDG Regulations (49 CFR 171.12). Some requirements still apply in each country, such as Canada’s ERAP and U.S. hazardous substance and inhalation hazard rules. Our guide explains them.
Who is responsible for the classification?
The shipper. Under TDG s. 2.2 the consignor must classify the goods before the carrier takes possession, and under 49 CFR 173.22 the offeror must class and describe the material. This lookup helps you plan and quote; it does not replace the shipper’s classification.