The International Football Association Board (IFAB) said that the use of five substitutes, introduced as a tweak to the rules because of the COVID-19 pandemic, will be formally written into the Laws of the Game at a meeting in Doha on Monday.
Further discussions, and possible decisions, on concussion substitutes and semi-automated offside technology will also be on the agenda of governing body IFAB.
A maximum of five substitutes per team, instead of three, had been allowed since the outbreak of the pandemic in 2020.
It will now become permanent although its use in different competitions will remain at the discretion of the body organising the matches.