Division 2.2.2.2
United Kingdom
F1Vehicles of categories R1b and S1b, where the sum of the technically permissible masses per axle exceeds 750 kg, and R2 shall be equipped with a service braking system either of the continuous or semi-continuous or of the inertia type. However, if the vehicles of these categories have a service braking system of the continuous or semi-continuous type they shall meet the same requirements as those of category R3.