An excepted quantity is an exemption used for very small quantities of dangerous goods and that are not Class 1 Explosives. To be allowed to use this exemption you must meet certain criteria:

1. The dangerous goods are in an inner means of containment and an outer means of containment that is safe; meaning it is designed, constructed, filled, closed, secured and maintained so that under normal conditions of transport, including handling, there will be no accidental release of the dangerous goods that could endanger public safety;
2. Column 6(b) of Schedule 1 of the TDG Regulations identifies an alphanumeric code. This code references a mass or volume of dangerous goods for the inner means of containment listed in Column 1 of the Excepted Quantity Table.
   • for solids, the mass shown in grams must be less than or equal to the number shown in column 1
   • for liquids, the volume expressed in millilitres must be less than or equal to the number shown in column 1
   • for gases, including a gas in a liquefied form, the volume expressed in millilitres, must be less than or equal to the number shown in column 1
3. Column 6(b) of Schedule 1 of the TDG Regulations identifies an alphanumeric code. This code references a gross mass or volume of dangerous goods for the outer means of containment listed in Column 2 of the Excepted Quantity Table.
   • for solids, the gross mass shown in grams must be less than or equal to the number shown in column 2
   • for liquids, the maximum volume expressed in millilitres must be less than or equal to the number shown in column 2
   • for gases, including a gas in a liquefied form, the maximum volume expressed in millilitres, must be less than or equal to the number shown in column 2

When dangerous goods in excepted quantities for which different alphanumeric codes are assigned are together in an outer means of containment, the total quantity must not exceed the lowest maximum net quantity per outer means of containment shown in column 2 of the Excepted Quantity Table.

Part 3 (Documentation), Part 4 (Dangerous Goods Safety Marks), Part 5 (Means of Containment), Part 6 (Training), Part 7 (Emergency Response Assistance Plan) and Part 8 (Accidental Release and Imminent Accidental Release Report Requirements) do not apply to the handling, offering for transport or transporting of dangerous goods in excepted quantities if each means of containment is marked on one side, other than a side on which it is intended to rest or to be stacked during transport, with the excepted quantities mark.

EXCEPTED QUANTITIES MARK

*  Enter the Class of the Dangerous Good

** Enter the Consignor name when not entered elsewhere on the package

4. When dangerous goods in excepted quantities are in a means of containment that is inside an overpack, the following information must be displayed on the overpack, unless that information is on the means of containment and is visible through the overpack:
   • the word “Overpack” or “Suremballage”; and
   • the excepted quantity mark.
5. The number of outer Means of Containment containing dangerous goods in excepted quantities on a road vehicle, a railway vehicle or an intermodal container must not exceed 1000.
6. When dangerous goods in excepted quantities are in an inner means of containment that is inside an outer means of containment, the inner means of containment is not required to be marked if
   • the outer means of containment is not intended to be opened during transport; and
   • the outer means of containment is marked, legibly and visibly on a contrasting background, with the excepted quantity mark.
7. If a shipping document or any other document accompanies dangerous goods in excepted quantities, the document must include the words “dangerous goods in excepted quantities” or “marchandises dangereuses en quantités exceptées” and must indicate the number of outer means of containment.