- is the Contractor's design acceptable?
- is the event a compensation event?
- is the quotation for a compensation event prepared in accordance with the contract?
- does the work meet the Condition stated for the Key Date?
- and so on.
Lots of decisions, so (clients) make sure your ECC PM (or equivalent in other NEC3 contracts) is a competent decision maker. In a recent training course I was pointed to a quote from Theodore Roosevelt....
'In any moment of decision, the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.'
I couldn't locate the absolute source of this other than general reference in a Google search but this sums my point up brilliantly. Make sure you have available all the data, support, opinion etc to help you make that decision, then make it!
Happy deciding!