Our Ops Specs in the USA for my compnay:
NDBs with a FAF add 50ft to the HAT
NDBs w/o a FAF add 100ft to the HAT
VOR w/o a FAF add 50ft to the HAT
NDB and LOC, the lowest vis 3/4 or RVR4000
In addition we have provisions to plan a VDP on every non precision.
Comments?