Off-Road Compression-Ignition Engine Emission Regulations

11 (1) In this section, adjustable parameter means a device, system or element of design that is capable of being physically adjusted and as a result can affect emissions or engine performance 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 engine manufacturer or that is inaccessible with the use of ordinary tools.

(2) Engines equipped with adjustable parameters must comply with the applicable standards under these Regulations for any specification within the physically adjustable range.