"I am already doing intensive training to maintain top fitness and I am confident that whenever the ICC gives the clearance I can get back into domestic cricket quickly," he told PTI.
The Pakistan Cricket Board has said it had pushed for the ACU code to be revised in a bid to ensure that the 22-year-old Aamir is allowed to play domestic cricket before his five-year ban ends in August 2015.
The PCB has maintained it had decided to plead Aamir's case because when he was caught in the spot-fixing scandal he was just 18 and secondly he had been the first player to admit his guilt and present himself for rehabilitation.
The left-arm pacer, who was first suspended and then banned in September 2010 after the spot-fixing scandal broke out during Pakistan's tour of England, has also served jail time in the United Kingdom for the same offence.
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"I know how difficult it has been for me to stay away from cricket for the last four years and I have learnt my lesson. But I never gave up hope of making a return after my ban ends next year," he said.
"I consider myself fit now to play domestic cricket. I have been training hard and I know how to pace myself back into competitive cricket. Whenever I get a chance to get back to playing domestic cricket my top priority will be to make a comeback to the national team with my performances," he said.
The PCB is expected to send a request to the ICC ACU chief within 10 days to give permission to Aamir to play domestic cricket before his ban ends.