@microburst, LBA or german CAA of course operating under EU-OPS. We are required to have at least 75m RVR for CAT IIIb on the 737 during the whole approach, no approach ban so no difference if before or after a certain point. Those 75m have to be met for all points covering the required landing distance (computed to dispatch criteria). Even on our non fail operational 737 those 75m are now a hard go-around criteria during all parts of the approach, however after the ABP we can continue if the RVR falls below the CAT III value but still is 75m or greater.