Notts County manager Kevin Nolan has registered himself as a player and loaned West Brom forward Tahvon Campbell until the end of the season.
Nolan was appointed by the struggling League Two club on 12 January, but the 34-year-old midfielder was unable to play because of a transfer embargo.
However, debts to HM Revenue & Customs and other clubs have now been settled.
Campbell, 20, has scored two goals in 36 League Two games across two loan appearances with Yeovil.
Owner Alan Hardy has confirmed that former Bolton Wanderers, Newcastle United and West Ham man Nolan can now play.