One would hope this this would be covered in local ATC instructions.
In the UK it is called 'runway sterilization/sterilisation'. Our state equivalent of ICAO Doc 4444 PANS/ATM, the UK MATS Part 1, says;
11B.4 When it is known that the emergency aircraft is committed to landing at the selected aerodrome, units shall, in conjunction with any other appropriate ATSUs, give consideration to the sterilization of the landing runway.
...and our local ATC manual (MATS Part 2) states the circumstances under which we must sterilise the runway ahead of landing emergency traffic and the distance from touchdown (of the emergency traffic) at which this must take place.