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Formaldehyde Emissions from Composite Wood Products Regulations

Version of section 4 from 2025-03-18 to 2026-03-17:


Marginal note:Non-application

 These Regulations do not apply in respect of

  • (a) curved plywood;

  • (b) finger-jointed lumber;

  • (c) the following structural wood products in which moisture-resistant adhesives are used:

    • (i) plywood that complies with sections 6 and 7 of the Canadian Standards Association standard CSA O121, entitled Douglas fir plywood or CSA O151, entitled Canadian softwood plywood, or with section 5 of the National Institute of Standards and Technology standard NIST PS 1, entitled Voluntary Product Standard PS 1 Structural Plywood,

    • (ii) oriented strand board and panels that comply with section 5 of the Canadian Standards Association standard CSA O325, entitled Construction sheathing, or with sections 5.2 to 5.4 of the National Institute of Standards and Technology standard NIST PS 2, entitled Voluntary Product Standard PS 2, Performance Standard for Wood Structural Panels,

    • (iii) composite lumber that complies with sections 4.3 and 6.4 to 6.10.2 of the standard ASTM D5456, entitled Standard Specification for Evaluation of Structural Composite Lumber Products,

    • (iv) glued-laminated timber that complies with sections 5.1, 5.3, 6.1 to 6.8.1 and 7 of the Canadian Standards Association standard CAN/CSA-O122, entitled Structural glued-laminated timber, or with sections 5 to 7 and 9 to 12 of the American National Standards Institute standard ANSI A190.1, entitled Standard for Wood Products – Structural Glued Laminated Timber,

    • (v) I-joists that comply with sections 5 and 6.2 to 6.6.3 of the standard ASTM D5055, entitled Standard Specification for Establishing and Monitoring Structural Capacities of Prefabricated Wood I-Joists, and

    • (vi) cross-laminated timber that complies with sections 5, 6, 7.2 to 7.2.1, 8.2, 8.3, 8.5 to 8.5.6.2 and 9.3 of the American National Standards Institute standard ANSI/APA PRG 320, entitled Standard for Performance-Rated Cross-Laminated Timber;

  • (d) hardboard;

  • (e) spools and packaging, including pallets, crates and dunnage;

  • (f) composite wood products that are used, before or after they are imported or sold, in

    • (i) a vehicle other than a mobile home, motor home or recreational trailer,

    • (ii) any car or railway equipment that is designed for movement on its wheels on the rails of a railway,

    • (iii) a vessel, as defined in section 149 of the Canadian Environmental Protection Act, 1999, or

    • (iv) an aircraft;

  • (g) windows that contain a composite wood product that represents less than 5% of the total volume of the window, including the glass;

  • (h) exterior or garage doors that contain a composite wood product that either represents less than 3% of the total volume of the door or is made only with a no-added-formaldehyde resin or an ultra-low-emitting-formaldehyde resin;

  • (i) composite wood products that are to be used for research and development activities;

  • (j) composite wood products that are to be used in a laboratory for analysis, in scientific research or as a laboratory analytical standard;

  • (k) composite wood products that are manufactured or imported for export only; and

  • (l) second-hand goods and other finished goods after they have been acquired by a consumer for a purpose other than resale.

  • SOR/2024-256, s. 2

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