Premier League clubs will be allowed to name seven substitutes in matches from the start of next season.
The change was suggested by Tottenham chairman Daniel Levy last year and replicates the regulations in European and international games.
The Premier League agreed to discuss the issue, amid concerns that it would favour clubs with big squads.
Premier League voting rules require 14 out of the 20 member clubs to back any suggested rule changes.
Coaches are currently restricted to naming five substitutes, and are able to use a maximum of three of them.
But Levy told his club's official website: "We have promoted and lobbied for this rule change for some time and we are absolutely delighted our proposal was supported by member clubs.
"It is important to give our managers greater choice on the bench, enabling them to be more creative tactically.
"That was the objective behind us bringing this proposal to the table.
"Additionally, it should also mean that younger players from the academy can be given an opportunity to break into the first team."