Andrew Gideon wrote:


Regarding the difference between 2. and 3.: When would "procedures require
application of IFR separation to VFR aircraft practicing instrument
approaches" as opposed to "Where separation services are not provided to
VFR aircraft practicing instrument approaches"?

It depends. Most facilities have a letter to airmen out there that says
they will provide services to the extent possible. If so then the
facility must provide the three mile separation(500 feet vertical)
unless there's a good reason they can't.