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Document ID ca-dgmsmc-2025-05-09 Title Dangerous goods marks on a small means of containment URL https://tc.canada.ca/en/dangerous-goods/safety-awareness-materials-faq/industry/dangerous-goods-marks-small-means-containment Jurisdiction /ca Subdomain(s) Drinking Water, Wastewater, Industrial Water Language en Status completed Analyzed at 2026-03-16 07:15:51.815410+00:00 Relevance Regulatory requirements for labeling dangerous goods in small containers.

13 Qualitative 4 Quantitative 5 Definitions

Q Qualitative Requirements (13)

Req ID	Category	Intent	Legal Status	Name	Subdomain(s)	Context	Conditions	Confidence
#Q001	operational	operational	mandatory	General display of dangerous goods marks	other	Dangerous goods marks must be displayed on a small means of containment in accordance with Part 4 of the TDG Regulations.	Applies to anyone who imports, offers for transport, handles or transports dangerous goods in small means of containment.	high
#Q002	design	operational	mandatory	Physical characteristics of dangerous goods marks	other	Dangerous goods marks must be (Section 4.6): visible, legible, displayed against a background of contrasting colour, made of durable and weather-resistant material, displayed in the colours specified in Section 4.6(c) of the TDG Regulations		high
#Q003	operational	operational	mandatory	Mandatory display of labels	other	A label must always be displayed on a small means of containment containing dangerous goods.	When the small means of containment contains dangerous goods.	high
#Q004	operational	operational	mandatory	Primary and subsidiary class labels requirement	other	One label is required for the primary class, as well as one for each subsidiary class of the dangerous goods.		high
#Q005	reporting	reporting	mandatory	Display of shipping name and UN number	other	Aside from labels, a small means of containment must also display the shipping name, technical name (if applicable) and UN number of the dangerous goods in transport.		high
#Q006	operational	operational	mandatory	Category B mark requirement	other	Category B mark must be displayed on small means of containment containing infectious substances included in UN3373, BIOLOGICAL SUBSTANCE, CATEGORY B.	When containing infectious substances included in UN3373, BIOLOGICAL SUBSTANCE, CATEGORY B.	high
#Q007	operational	operational	mandatory	Marine pollutant mark requirement	other	Marine pollutant mark must be displayed on small means of containment for dangerous goods that are marine pollutants in transport by vessel.	For dangerous goods that are marine pollutants in transport by vessel.	high
#Q008	prohibition	operational	mandatory	Prohibition of label placement on top or bottom	other	Labels for the primary and subsidiary classes can be displayed on any side, except the top or bottom, of a small means of containment, and on the shoulder of cylinders.		high
#Q009	operational	operational	mandatory	Class 7 Radioactive Materials label placement	other	A package containing Class 7, Radioactive Materials must display a label on two opposite sides other than the side it is intended to rest or is to be stacked.	When the package contains Class 7, Radioactive Materials.	high
#Q010	design	operational	mandatory	Label dimensions and border requirement	other	Each side of a label must be at least 100 mm in length with a line running 5 mm inside the edge.	Standard size requirement for small means of containment labels.	high
#Q011	design	operational	mandatory	Minimum label size reduction limit	other	each side of the label may be reduced in length by the same amount to the point where the label, together with the shipping name, technical name and UN number, will fit that small means of containment, but must not be reduced to less than 30 mm.	Applies when standard label size cannot fit due to irregular shape or size, except for Class 7.	high
#Q012	operational	operational	mandatory	Inhalation hazard marking requirement	other	the words “inhalation hazard” or “dangereux par inhalation” (if dangerous goods are included in Class 6.1, Toxic Substances, in accordance with Paragraph 2.28(c) of the TDG Regulations, Class 2.3, Toxic Gases, in accordance with Paragraph 2.14(c) of the TDG Regulations or are subject to Special Provision 23)	Specific to Class 6.1, Class 2.3, or goods subject to Special Provision 23.	high
#Q013	reporting	reporting	mandatory	Radioactive material specific information requirement	other	name or symbol of radionuclide, activity and transport index (if dangerous goods is included in Class 7, Radioactive Materials)	When dangerous goods are included in Class 7, Radioactive Materials.	high

P Quantitative Requirements (4)

Req ID	Category	Intent	Legal Status	Name	Subdomain(s)	Limit Type	Limit Value	Context	Conditions	Confidence
#P001	design	unknown	mandatory	Small means of containment capacity	other	requirement	<= 450 L	A small means of containment is a means of containment with a capacity less than or equal to 450 L.	Definition of small means of containment	high
#P002	design	unknown	mandatory	Label side length	other	requirement	>= 100 mm	Each side of a label must be at least 100 mm in length	Standard label size on a small means of containment containing dangerous goods	high
#P003	design	unknown	mandatory	Label inner line distance from edge	other	requirement	5 mm	with a line running 5 mm inside the edge.	Applies to labels on small means of containment	high
#P004	design	unknown	mandatory	Minimum reduced label side length	other	requirement	>= 30 mm	each side of the label may be reduced in length by the same amount... but must not be reduced to less than 30 mm.	When regular size cannot be displayed because of the irregular shape or size of the small means of containment (except for Class 7, Radioactive Materials)	high

D Definitions (5)

Req ID	Category	Name	Context	Confidence
#D001		dangerous goods mark	a symbol, device, sign, label, placard, letter, word, number or abbreviation, or any combination of those things, that is to be displayed to indicate the presence or nature of danger on dangerous goods, or on a means of containment or means of transport used in importing, offering for transport, handling or transporting dangerous goods.	high
#D002		small means of containment	a means of containment with a capacity less than or equal to 450 L.	high
#D003		TDG Regulations	Transportation of Dangerous Goods Regulations	high
#D004		UN	United Nations	high
#D005		TDG Act	Transportation of Dangerous Goods Act, 1992	high