The International Cricket Council has granted national boards new powers in a bid to stop the Indian Premier League taking precedence over Test cricket.
The IPL is regarded as a domestic event but the ICC is giving member nations a right of veto over individual players.
The national board's veto can apply in respect of any cricketer, whether or not on a central contract.
And it can remain in force up to two years after an individual player has retired from international duty.
The ICC has agreed a standard-form contract with the Board of Control for Cricket in India (BCCI), the owner of the lucrative IPL, which begins in April.
The deal gives countries "absolute discretion" to lodge objections.
Any objection will have to be respected by the IPL, says the ICC, with the player in question not selected by his franchise.
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This means any player seriously considering a long Test career - and a stint in the IPL Twenty20 competition - would have to fulfil his international commitments first.
West Indies coach John Dyson said he hoped IPL officials would allow three of his senior players - captain Chris Gayle, Shivnarine Chanderpaul and their fellow batsman Ramnaresh Sarwan - sufficient time to prepare for Australia's visit in May.
"I expect our players to be back here a week before the Australian series," he told the Sydney Morning Herald.
"I think everyone here understands the dilemma our players will find themselves in if the pressure comes down from their IPL franchises," Dyson added.
"Gayle couldn't make anywhere near that kind of money here."
However the ICC's new rule does not prevent international players simply turning their back on Test cricket altogether to accept a more generous pay packet with the IPL.
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