AMC5 ADR.OPS.B010(a)(2), point (a) refers to the ‘position to apply foam’. How should the term ‘position to apply foam’ be understood?

As the capabilities of vehicles (e.g, moving and discharge or stop and discharge) and the procedures (e.g. one or two persons) in place at aerodromes vary widely, in such a context:

• To be in a ‘position to apply foam’ means the moment whenever the vehicle(s) is capable to effectively apply at least 50 % of the required discharge rate as per the reported incident’s category.
• The requirement may be considered to be fulfilled as soon as the vehicle(s) reach(es) a location where fire monitors of the vehicle(s) are within the range of where the incident occurred and is/are in a position to effectively apply the extinguishing agents at the specified discharge rate.
• The capabilities of vehicles and procedures in place should be taken into consideration when calculating the response time.