Question id 342 - Air Law - ATPL - Airline Transport Pilot license

At least 1.5 NM prior to intercepting the ILS glide path or specified MLS elevation angle
At least 3.0 NM prior to intercepting the ILS glide path or specified MLS elevation angle
At least 2.5 NM prior to intercepting the ILS glide path or specified MLS elevation angle
At least 2.0 NM prior to intercepting the ILS glide path or specified MLS elevation angle