Lesson 1, Topic 1
In Progress

Limited Quantities Exemption


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Exemptions and Special Cases

Limited Quantities (Domestic) TDGR 1.17:

A consignment of dangerous goods, other than explosives, is a limited quantity if:

  • each means of containment (package) is 30 kg (66 lbs) or less gross mass; and
  • the quantities for inner packagings are restricted to the quantities shown in TDGR column 6 (a) of Schedule 1 in kg, L or water capacity for gases in Litres
  • the inner means of containment is not required to be marked if

    (b) the outer means of containment is not intended to be opened during transport; and

    (c) the outer means of containment is legibly and visibly marked, on a contrasting background, with the mark illustrated in TDGR 1.17 subsection (5).

Limited Quantity Mark – TDGR 1.17 (5)

The letter “Y” may be displayed in the centre of the mark if the limited quantity is in compliance with the ICAO Technical Instructions.

TDGR 1.17 (4) for overpack requirements – When a limited quantity of dangerous goods is in a means of containment that is inside an overpack, the following information must be displayed on the overpack unless the marks on the small means of containment are visible through the overpack:

(a) the word “Overpack” or “Suremballage”; and

(b) the Limited Quantity mark, legibly and visibly marked on a contrasting background

TDGR 1.17 (5) The mark is a square on point, and the line forming the square on point must be at least 2 mm wide. The top and bottom portions must be black and the central portion must be white or a contrasting colour. Each side of the mark must be at least 100 mm long. The letter “Y” may be displayed in the centre of the mark if the limited quantity is in compliance with the ICAO Technical Instructions (for Air Transport).

If the size of the means of containment so requires, the length of each side may be reduced to not less than 50 mm, provided that the mark remains clearly visible.

Basically, the customer is allowed to tender packages for transport that have reduced indications from fully regulated materials that there is a hazard contained within, except for the package marking. These packages are small quantities of dangerous goods normally intended for retail sale or household use.

It is very important that each of these packages weight less than 30 kg (66 lbs), if in doubt weigh the package or notify your supervisor.

For example: UN1950 AEROSOLS, non-flammable – Commonly sold as compressed air for “Dusting Electronics” in a “Consumer Commodity” format for retail sale, etc.

If you reference TDGR Schedule 1 you will note that the amount provided in Column 6 (a) restricts each inner container of (Compressed, non-flammable gas) Class 2.2 AEROSOLS to no more than a capacity of 1 L.

*Note* This means the shipper can place as many Aerosol cans that are less than or equal to 1 L in a means of containment provided that package weighs less than or equal to 30 kg Gross weight.

***** Be aware that a zero “0” in Column 6 (a), indicates that no quantity of this substance (most likely PG I substances) may be shipped under this provision as a Limited Quantity*****

TABLE

Excepted Quantities

Excepted Quantities Exemption TDGR 1.17.1:

(1) A quantity of dangerous goods, other than explosives, is an excepted quantity if:

  • the inner means of containment are restricted to the quantities shown in the Table to subsection (2) – above – for the corresponding code in column 6(b) of Schedule 1 TDGR expressed in grams (g), millilitres (ml) or water capacity for gases in millilitres (ml).
  • the outer means of containment are restricted to the quantities shown in the Table to subsection (2) – above – also in grams (g), millilitres (ml) or water capacity for gases in millilitres (ml).

(2) different alphanumeric codes are assigned are together in an outer means of containment, the total quantity of dangerous goods must not exceed the lowest maximum net quantity

(3) 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 (Reporting 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 illustrated below.

Replace * with the primary class Replace ** with the name of the consignor or the consignee

(4) the following information must be displayed on the overpack, unless that information is on the means of containment and is visible through the overpack:

(a) the word “Overpack” or “Suremballage”; and

(b) the mark shown above.

(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.