Bookworm
Thank you for the info.
AD 1.1.2 contains a difficult to unravel mixture of regs and recommendations, occassionally "strong recommendations".
The min takeoff RVR is governed by the State of Registry, and foreign reg planes are lumped together with non PT UK ones, and there is no minimum specified. Why did you say "for G-reg"? It appears to me that both non-PT G-reg, and all noncommercial N-reg, have no min takeoff RVR.
Interesting about the ICAO min 1500ft cloudbase. When does it apply? Biarritz used to be 1000ft and last time I was there (2004) it was 1200ft. They are in Class D. The FAA uses a blanket 1000ft min for Class D.