Of course, in FAA-land it's done just a tad differently.
No such thing as an approach 'ban', the pilot decides whether to land (or not) depending on what he actually sees, at minima.
An entirely more satisfactory arrangement, it seems to me.
Japan has (or at least did have) this arrangement...as I recall being on approach at NRT, with the reported viz/rvr below minima.
In the meantime, a CX L1011 departs, and the fog lifts just a tad, we have runway in sight at DH, and land.
Aircraft behind, however, had no such advantage.
They divert.
IMO, the decision to land (or not) belongs on the FD, not in the tower.
411A........but surely at 1000ft/FAF he is only allowed to continue the approach to minimums to "have a look" if the reported RVR is above minima for the approach in use.
It depends.
Private operators (business jets, for example) have no such restriction and, believe it or not, some airlines outside of the USA (dependant on the regulatory authority) also have no such restriction in their ops specs.