To exempt marine fuel dispensing stations from the application of Clause 4.6.5.2.(2)(b), which would otherwise require automatic hose nozzle valves, if certain conditions are met [dispensing operations must be continuously attended and hose nozzle valves are manually operated], on the basis that marine fuel dispensing stations pose a higher risk of which could lead to harm to the public [water contamination].
The conditions [that are to be met] are to limit the probability that inadequate control of dispensing operations will lead to an unwanted escape of liquid, which could lead to harm to the public.
To state the application of Clause 4.6.5.2.(2)(a).