Dan Wegman wrote:

I just noticed an approach to Frederick, MD (FDK) entitled "ILS OR LOC RWY
23". I thought every ILS could be flown as a non-precision LOC approach so
why not just call this one the "ILS RWY 23"?

The naming convention was changed to conform with Jeppesen's view of what the
rest of the world does in this regard.

Stay tuned. ;-)