Sam Spade wrote:

5-4-7 i. ATC may clear aircraft that have filed an Advanced RNAV
equipment suffix to the intermediate fix when clearing aircraft for an
instrument approach procedure.

Wouldn't a cleaner and more permanent change be to mark those
intermediate fixes as IAF or IF/IAF on the GPS/RNAV approach plates?
Or is there a reason that isn't practical? I guess that means the
initial segment would have a length of zero. (perhaps that's not
allowed in the TERPS?)