Division 2.2.2.4
United Kingdom
The service braking system:
- 2.2.2.4.1.
shall act at least on two wheels of each axle in the case of towed vehicle of categories Rb and Sb;
- 2.2.2.4.2.
shall distribute its action appropriately among the axles;
- 2.2.2.4.3.
shall contain in at least one of the air reservoirs, if fitted, a device for draining and exhausting in an adequate and easily accessible position.