Under Jar ops, we need 125m for all relevant reporting points and pilot assessment can be substituted for the TDZ.
Our airline is now operating under EASA or EU-OPS. I am 99% sure the above has now been superceded. Now we need the visual segment on line up in addition to the RVR. Previously we could take off if we had the 90m segment (6 lights) irrespective of the reported RVR but that is not the case now under EU-OPS.
Your airline may still be operating under JAR in which case please disregard.