Vaughan said New Zealand's decision did not indicate it condoned unsanctioned competitions and it was aware the ICC was considering sterner steps against players who take part in future rebel leagues.
"There's no question that New Zealand suffered heavily from the ICL. Our national side lost a significant number of top players," he said.
"Many of the ICL players have had limited cricket over the past 12 months and there has been no ICL cricket played since 2008. The earliest time former ICL players would be eligible for selection is in August, which would amount to almost 12 months since the last ICL event."