Barcelona's one-year transfer ban has been suspended by FIFA pending the outcome of their appeal.
The decision means the Catalan club will be able to sign new players during the summer transfer window.
FIFA barred Barcelona from registering new players for breaching rules on signing youth players from overseas.
This summer is crucial as Barca look to add to their squad in the wake of recent on-pitch struggles.
Among the positions in sore need of reinforcements is the centre of defence with the club linked with Chelsea's David Luiz, while the La Liga giants had closed on a deal for goalkeeper Marc-Andre Ter Stegen as a replacement for the departing Victor Valdes.