Nottingham Forest goalkeeper Lee Camp has been granted clearance to play for Northern Ireland, the Irish Football Association has confirmed.
Derby-born Camp, who qualifies through his grandfather, could now come into contention for the Euro 2012 qualifiers against Serbia and Slovenia next month.
Northern Ireland manager Nigel Worthington is pleased to have the 26-year-old at his disposal after Fifa gave the player the green light.
He said: "I am delighted that clearance has come through for Lee to play for us. It has taken a bit of time, but the patience has paid off.
"This is a big plus and it is testament to the quality we have in the squad that players of Lee's calibre want to come and play for Northern Ireland.
"I have spoken to Lee and he is absolutely delighted that he has been cleared to represent the birthplace of his grandfather."
Camp, capped five times at England Under-21 level, cannot wait to don the Northern Ireland jersey, adding: "I am thrilled that I am now able to play international football for Northern Ireland.
"It seems like I have been waiting forever for the relevant paperwork to be sorted out with Fifa, but now that I have been given the green light I am looking forward to the opportunity to join up with the squad.
"I would like to thank Nigel Worthington for his patience and for giving me the chance to become involved in the Northern Ireland team."