Simon
I had put a garmin 430 in my old plane, it was IFR certified, any ifr certified
GPS will have to have the supplement in the POH, but yes a IFR certified GPS can
be used in place of a VOR/DME , but you have to have back up equipment in the
plane, ie.. VOR, in case the GPS goes out. If you use a 430, it pretty much does
everything for you, tells you when to turn and to what heading, your not using
VOR's or DME so you cant use say, the approach shows your MAP at 14 DME from xxx
vor, but it will show you the MAP on the moving map so you know when your there,
it also will show you your FAF, pretty simple to use once you learn it. But yes
it can replace all the other stuff when its installed / certified for IFR

"S. Ramirez" wrote:

Someone in another forum said that it's okay to substitute certified GPS for
DME or ADF on an approach plate that depicts FAFs or intersecting points
using DME or ADF. I asked that person to back it up with a reference from
an official document like the FARs, AIM or something that the FAA puts out.
He can't do it. Does anyone know where this information may be located?

Thanks.

Simon