Visually inspect ullage and safety valves

• where a container is fitted with an automatic fill limiter (AFL), there is no label at the filling point warning the driver "AFL fitted - bleeding during filling not required";

• where an ullage valve is fitted, the outlet does not have a cap or plug;

• NOTE: An ullage valve is not required if the vehicle is fitted with an AFL. where a container is not fitted with an AFL, there is no label warning the driver to "Stop filling when liquid appears";

• the safety valve has any damage in the system or blockage to the discharge pipe, if fitted, or allows the discharge to strike the exhaust system, container or a bystander, or the protective cap is not functioning or is missing.