Off-Road Small Spark-Ignition Engine Emission Regulations

9 (1) An emission control system that is installed on an engine to enable it to conform to the standards set out in these Regulations shall not

• (a) in its operation, release a substance that causes air pollution and that would not have been released if the system were not installed; or

• (b) in its operation or malfunction, make the engine or the machine in which the engine is installed unsafe, or endanger persons or property near the engine or machine.

(2) An engine shall not be equipped with a defeat device.

(3) Subject to subsection (4), a defeat device is an auxiliary emission control device that reduces the effectiveness of the emission control system under conditions that may reasonably be expected to be encountered under normal operation of the engine.

(4) An auxiliary emission control device is not a defeat device if

• (a) the conditions referred to in subsection (3) are substantially included in the test procedures referred to in section 13.1;

• (b) it is needed to protect the engine against damage or accident; or

• (c) its use does not go beyond the needs of engine starting.