The following is a direct copy/paste for EU ops. I don't have the EASA document to hand but imagine it's the same -
The touch-down zone RVR is always controlling. If reported and relevant, the mid point and stop end RVR are also controlling. The minimum RVR value for the mid-point is 125 m or the RVR required for the touch-down zone if less, and 75 m for the stop-end. For aeroplanes equipped with a roll-out guidance or control system, the minimum RVR value for the mid-point is 75 m.
The 125m for mid-point should not be confused with the minimum take-off minima which happens to be coincident with Cat C aircraft operated by airlines with special approval.