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Heavy-duty Vehicle and Engine Greenhouse Gas Emission Regulations

Version of section 15 from 2013-02-22 to 2018-11-15:


Marginal note:Definition

  •  (1) In this section, adjustable parameter means a device, system or element of design that is capable of being adjusted to affect the emissions or performance of a heavy-duty vehicle or heavy-duty engine during emission testing or normal in-use operation, but does not include a device, system or element of design that is permanently sealed by the vehicle or engine manufacturer or that is inaccessible using ordinary tools.

  • Marginal note:Standards

    (2) A heavy-duty vehicle or heavy-duty engine that is equipped with adjustable parameters must comply with the applicable standards under these Regulations for any specification within the adjustable range.

  • Marginal note:Adjustable roof fairing

    (3) The adjustable roof fairing of a tractor is not an adjustable parameter for the purposes of this section.


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