The FAA requires a demo of VRS as part of the CFI checkride and as a part of the annual part 135 Air Taxi checkride.
Even for a Private Pilot checkride the FAA requires their definition of VRS: "Settling with Power" to be demonstrated (at least it is part of the PTS):
D. TASK: SETTLING-WITH-POWER
REFERENCES: FAA-H-8083-21; POH/RFM.
Objective.
To determine that the applicant:
1. Exhibits knowledge of the elements related to settling-with-power.
2. Selects an altitude that will allow recovery to be completed no
less than 1,000 feet AGL or, if applicable, the manufacturer’s
recommended altitude, whichever is higher.
3. Promptly recognizes and recovers at the onset of settling-withpower.
4. Utilizes the appropriate recovery procedure.
I know, I know many of you (myself included) think these are to different things (the settling thing and the vortex thing) but the FAA likes to describe it this way - and last time I checked, they where the governing body for the US when it comes to pilots licenses 