I suspect this has been coming for a while. How and where to dump fuel.
Dumping fuel, to avoid an overweight landing, and hence the subsequent inspection is USUALLY an economic decision.
I sure there will be some guidelines drawn up.
- Is it critical to the safe landing of the A/C to dump fuel ? if yes, carry on...it's a balance of risk to people on board vs people on the ground ( military pilots often bale out late after they have steered their A/C clear of built up areas, ultimately the pilots choice )
- If not, then it's an economic question. and you have to ask, with respect to your current altitude and location, is it safe and appropriate to dump fuel now ? ( with respect to potential ground hazard )