Volatile organic compound concentration limits for architectural coatings regulations
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What Are Architectural Coatings?
Architectural coatings are products such as paints, stains, varnishes, lacquers and other types of coatings applied to traffic surfaces or to a wide variety of stationary structures in residential, commercial, institutional and industrial settings.
The Canadian architectural coatings sector produces coatings for three main segments:
- General architectural coatings: coatings sold to painting contractors and to the general public through retail outlets.
- Industrial maintenance coatings: high-performance architectural coatings for industrial or professional application to surfaces exposed to extreme conditions.
- Traffic marking (TM) coatings: used for marking traffic surfaces such as streets and highways, parking lots, airport runways, etc.
Where Do Emissions of Volatile Organic Compounds Originate?
Volatile organic compound (VOC) emissions from the architectural coating sector result from the use of solvents in both solvent-based and water-based coatings. The solvents in coatings are released to the atmosphere by evaporation during the drying and curing process. They then contribute to the formation of ground-level ozone and particulate matter, which form smog.
Why Are Regulations Necessary?
The Government of Canada is working to protect the environment and health of Canadians from the effects of air pollution which increase the risk of respiratory and heart diseases.
In 2005, it was estimated that 51 kilotonnes of VOCs were emitted from architectural coatings in Canada. It is not feasible to capture and control VOC emissions resulting at the point of use. The best option to reduce VOC emissions from architectural coatings is to reformulate products to contain lower levels of VOCs. The Regulations would result in an annual reduction in VOC emissions from these sources of approximately 28%.
To Whom Do the Regulations Apply?
The Regulations apply to the manufacturers, importers and sellers of architectural coatings, as well as to the users of TM coatings.
What Are the Main Requirements of the Regulations?
The Regulations set mandatory VOC concentration limits for 53 categories of architectural coatings. Concentration limits vary between 100 g/L-800 g/L depending on the category and are set out in the Schedule to the Regulations.
The prohibition of architectural coatings that exceed the applicable limits are outlined below:
|Number of Categories||Manufacture/Import||Sale and Offer for Sale||Use|
|45||Sept. 9, 2010||Sept. 10, 2012||N/A|
|6||Sept. 9, 2012||Sept. 10, 2014||N/A|
|1 ("recycled coating")||Sept. 9, 2014||Sept. 10, 2016||N/A|
|1 ("TM coating")||Sept. 9, 2010||Sept. 10, 2012||Sept. 10, 2012Footnote1|
These specific requirements were developed in response to concerns expressed by TM stakeholders regarding the performance and cost of low-VOC traffic marking coatings for cold weather application.
How to Stay Informed?
For additional information visit
Volatile Organic Compounds in Consumer and Commercial Products
Questions and inquiries can be directed
to Environment and Climate Change Canada:
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