For all braking rates between 0.15 and 0.30 in the case of vehicles of other categories;
This condition is also considered satisfied if, for braking rates between 0.15 and 0.30, the adhesion utilization curves for each axle are situated between two lines parallel to the line of ideal adhesion utilization given by the equation k = z ±0.08 as shown in diagram 1B of this annex and the adhesion utilization curve for the rear axle for braking rates z ≥ 0.3 complies with the relation:

a0c0