Approaches : Procedural and Radar Vectored ILSDME/NDBDME/VORDME/DME ARC/SRA etc
Tracking : VOR/NDB
Holds : VOR/NDB
RNAV : Enroute Navigation using VOR/DME/NDBFixes
Circle to land Bad/Weather Circuit
Not sure if all this is required for IMC but I sure was put through my paces.