SUSPENSION CLEARANCE
Under Section 25 of the Road Traffic (Miscellaneous) Regulations 1999, the available suspension travel of a vehicle must not be reduced by more than one third. The specifications included in the list are the minimum allowable.

DETERMINATION OF BUMP RUBBER CLEARANCE
The suspension bump clearance is the distance between the bump rubber, which is usually mounted on the lower control arm or above the upper control arm, and the corresponding contact point. The clearance must be measured with the vehicle on level ground, in its normal operating but unladen state.

DETERMINATION OF VEHICLE EYEBROW HEIGHT
Vehicle bump clearance specifications as designated with the symbol (E) signifies the vehicles minimum eyebrow height. This distance is measured from the centre of the wheel vertically upward to the edge of the vehicles mudguard, with the vehicle in it's normal operating but unladen condition.

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