The International Cricket Council approved its revised anti-corruption code yesterday, but left it up to home boards to let banned players return early to domestic competition.
A player's return to domestic competition before the expiry of his ban would require the agreement of anti-corruption board chairman Sir Ronnie Flannagan, and the relevant National Cricket Federation, with the approval of the ICC Board.
The revised code will help Pakistan seamer Mohammad Aamer's early return to domestic cricket, likely to come in February.
Last year, the Pakistan Cricket Board demanded the ICC relax certain conditions of Aamer's ban after he pleaded guilty to a spot-fixing crime and then completed the rehabilitation process.
Aamer, now 22, was banned with Salman Butt and Mohammad Asif for involvement in spot-fixing on Pakistan's tour of England in 2010.