Maybe its time for CASA to spell it out once and for all
One operation I know of operated without recourse to met info, period. Management finally relented to allowing obtaining one forecast to cover the entire days operation (days when met cost you via avfax - remember budget rules), but what was on the forecast did not impact on how things were run . Talking to a FOI was told you don't need forecasts, a phone call to Ernie or Martha at the service station to get an a report was all that was needed. I kid you not.