Noob question about flying a VOR/DME approach using a GNS430

[illinipilot]

I tried reading through this but my attention span wandered. What about an ILS approach that requires ADF? It seems that we can identify the outer-marker (LOM) just as easily with a GPS as we can with an ADF. Are we able then to substitute the GPS when an ADF is required per the approach plate?

 

[Green Banana]

Yes, you may substitute IFR-certified GPS receivers for DME and ADF avionics for all operations except NDB approaches without a GPS overlay. GPS can be used in lieu of DME and ADF on all localizer-type approaches as well as VOR/DME approaches, including when charted NDB or DME transmitters are temporarily out of service. These operations are allowable even when the facility is explicitly identified as required (e.g., "Note ADF Required")!

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