CSA B622-14: Canadian Regulations for Diesel Engines on Highway Tank Trucks

The January 12, 2018 deadline has passed for compliance to CSA regulation B622-14 which states that diesel engine highway tank trucks or portable tanks containing dangerous goods (class 2.1, primary class 3, or subsidiary class 3) must be equipped with an automatic engine air intake shutoff device to prevent diesel engine runaway in the event of exposure to combustible vapors. In addition, this device must activate automatically if engine overspeed is detected and remain activated until it is manually reset.

For Class 2 dangerous goods, CSA B622-14 states:
5 Loading and unloading requirements
5.1 General requirements

A means of containment shall not be used unless the following conditions are fulfilled:

(i)   no later than 1 Jan 2016, diesel engines on highway tanks and portable tanks containing dangerous goods of Class 2.1 and being used during loading or off loading shall be equipped with an automatic engine air intake shut-off device that will prevent engine runaway in case of exposure to flammable vapours. The device shall activate automatically if engine runaway is detected and remain activated until manually reset.

For Class 3 dangerous goods, CSA B621-14 states:
7 Use of means of containment
7.1 General requirements

A means of containment shall not be used unless the following conditions are fulfilled:

(j) as of 1 Jan 2016, diesel engines on highway tanks and portable tanks containing Dangerous Goods of primary Class 3, or subsidiary Class 3, and being used during loading or off loading shall be equipped with an automatic engine air intake shut off device that will prevent engine runaway in case of exposure to flammable vapours. The device shall activate automatically if engine runaway is detected and remain activated until manually reset.

This regulation went into full effect on January 12, 2018.

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