Man United and Man City will both be allowed to play in European competitions next season alongside their sister clubs.
There were concerns over multi-club ownership with UEFA rules previously stating that two clubs with the same ownership couldn't play in the same competition in the same season.
New minority owner Jim Ratcliffe also owns Ligue 1 club Nice and both clubs have qualified for next season's Europa League.
Girona, meanwhile, joined City Football Group in 2017 upon a purchase of a 44 per cent stake in the club and secured their place alongside City in the Champions League next term after finishing third in LaLiga.