Appendix 4: Glossary of Terms

CSA: Canadian Standards Association

Daytime: The period that starts one hour before sunrise and ends one hour after sunset.

Extremities: An extremity is the extreme projection of the equipment in question. For example, the extremity of a tractor may be the protruding axle stubs. On a cultivator it may be the protruding shovels when folded into transport position.

Hard Wiring: Permanently installed wiring on a self-propelled machine that connects with and works in concert with permanently installed wiring and lighting on attached implements.

Head lamps: A non-interruptible (as opposed to flashing) white colored light source used to illuminate the path of travel of equipment for operators, and to identify moving equipment for oncoming traffic on public roads. Head lamps must conform to SAE Standard J975.

Impair: To dim or conceal (wholly or partly) a lamp or marking with some external interfering object.

Implement of Husbandry: Means a vehicle designed and adapted primarily for agricultural, horticultural or livestock raising operations.

Lateral: Surfaces spanning a horizontal distance.

Left Side: The left hand side of a vehicle as determined from the rear of the vehicle facing in the direction that it moves.

Lensing: Covers on lamps that diffuse and color the light emitted from a source.

Lighting: Lamps used to illuminate and identify various parts of a machine to mark its size and position on a public road.

Marking: Signs and reflectors or reflective materials used to identify various parts of a machine and mark its size and position on a public road.

Night-time: The period commencing one hour after sunset and ending one hour before the following sunrise, or when atmospheric conditions (such as snow, rain, fog, smoke) do not allow enough light to clearly see a person at a distance of 150 metres (490 feet).

Reflective Materials: Other than reflectors which are part of lensing in lamps. Reflective material must meet the reflective requirements of SAE Standard J1967, Retroreflective Materials for Vehicle Conspicuity.

Reflectors: Can be part of lensing in lamps provided the lensing meets the reflective requirements of SAE Standard J594, Reflex Reflectors.

Right Side: The right hand side of a vehicle as determined from the rear of the vehicle facing in the direction that it moves.

Self-propelled Equipment: Equipment that is conveyed by its own power source.

Slow-Moving Vehicle (SMV) Sign: A brightly colored, triangular sign as described in CSA Standard M671, Slow-Moving Vehicle Identification Emblem.

Society of Automotive Engineers (SAE) Standard: A standard approved by the Society of Automotive Engineers.

Tail Lamps: A non-interruptible (as opposed to flashing) red colored light source used to identify the rear of machinery on public roads for approaching traffic. Tail lamps must conform to SAE Standard J585.

Towing Vehicle: A tractor, self-propelled implement of husbandry or motor vehicle.

Warning Lights: Means a light showing amber to the front and red to the rear and that is visible at a distance of 150 metres (490 feet) in normal darkness.

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Appendix 4: Glossary of Terms

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