How many countries have two kinds of licences: operator's licence and
station licence? You only get your callsign (station licence) after
you bring your rig in for inspection, whereupon you are granted a
callsign whose letter reflect the level of operator's licence you have
achieved. Taiwan is one.

This seems like a commercial radio concept dragged over into ham radio.
One would think one equipment approval would be enough too, as all
rigs on the market already have local FCC approval.