Zac Guildford has been given clearance to play rugby and will be available for his Hawke's Bay club, Napier Tech, this weekend.
In January, Guildford agreed to withdraw from the Crusaders and Super Rugby indefinitely to address on-going personal issues.
Following completion of an initial intensive treatment programme, Guildford has now committed to a continuing care plan.
New Zealand Rugby General Manager Professional Rugby Neil Sorensen says Guildford has completed an initial programme and is able to return to rugby and attend the misconduct process.
He says the Union will be meeting with Zac early next week to address the outstanding misconduct allegations.
New Zealand Rugby Players Association CEO Rob Nichol says Zac has developed a much greater understanding and acceptance of the challenges he faces, and while now is not the time, he hopes in due course to be able discuss these more openly.
In January, Guildford's was stood down after an alcohol-fuelled confrontation in Christchurch.
In 2011, Guildford was banned for four games by the New Zealand Rugby Union after an alcohol-fuelled rampage while in the Cook Islands.
In 2009, Guildford's father Robert died in a Tokyo grandstand while watching his son play for New Zealand in the final of the world under 20 rugby championship.