The English Football League will continue to stage pilots with up to 1,000 fans at matches this weekend, following approval from the government.
EFL clubs were asked to put in requests by Tuesday in order for their plans to be signed off in time.
Culture Secretary Oliver Dowden will meet with sports bodies later this week to discuss the planned return of spectators to sport from 1 October.
The EFL said the pilots were an "important step" for fans' safe return.
Those in local lockdown areas were told they would not receive permission to take part in the test events.
In a letter to clubs on Tuesday morning, the EFL's head of policy John Nagle said: "We cannot guarantee at this stage that all clubs that would like to stage a pilot will be given permission to do so, as only a limited number will be approved.
"We are still in discussions with regard to pilot matches on other dates."
Nagle said that "the next 48 hours are likely to be critical in terms of determining the direction of travel" regarding the potential return of fans.
He asked clubs to lobby local MPs, asking them to "make representations on behalf of you, their local club, to government," and added that football was facing "an impending financial crisis as a result of the Covid-19 pandemic".
Read more. source: https://www.bbc.com