Rangers will face Athletic Bilbao in the quarter-final of the Europa League next month.
Barry Ferguson's side made it to the last eight after a penalty shoot-out win over Fenerbahce at Ibrox on Thursday night.
That result teed up a contest with La Liga side Bilbao for a spot in the semi-final of the UEFA competition.
Rangers will first host the Spanish side at Ibrox in the first leg on Thursday, April 10 before heading to Estadio de San Mames for the return leg seven days later.
UEFA rules state that visiting clubs will receive at least five per cent of the stadium capacity in European matches.
Bilbao's stadium has a capacity of 53,000, meaning Rangers are in line to receive around 2,650 tickets for the away leg of the quarter-final.
Similarly, Bilbao will be handed around 2,500 tickets for the match in Glasgow.
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Europa League regulations state: "Home clubs must make at least 5% of the stadium capacity available exclusively to visiting supporters in an area of the stadium that can be segregated (see Article 19 of the UEFA Safety and Security Regulations) and must ensure that all related services and facilities (e.g. sanitary, catering and first aid) are available and in operation for as long as these spectators have access to the stadium.
"The price of tickets for supporters in the 5% allocation must not exceed the price paid for adult tickets in a comparable sector of the stadium that are sold to supporters of the home team (including tickets sold to season ticket holders, to persons who are members of the club, and/or sold as part of any promotion/promotional package for tickets exclusively for UEFA competition matches).
"Furthermore, in no case shall the price of those tickets for visiting supporters exceed €40."
