FIFA have that confirmed England can wait until June 9 to replace Wayne Rooney.
The Manchester United striker seems unlikely to play in the World Cup finals in Germany this summer after breaking a metatarsal bone in the 3-0 defeat by Chelsea on Saturday.
However, rather than having to replace injured players before the May 15 deadline, when Sven-Goran Eriksson will name his squad of 23, the England boss will have until the day before their opening game against Paraguay.
A FIFA spokesman told the Daily Telegraph: 'Coaches will have players who are crucial to their team and who they hope will be fit in time for the tournament and this gives them a chance to recover fully right up to the beginning of their team's World Cup.
'That provision is there for any player, provided a medical certificate confirms the injury.'
The Football Association, meanwhile, have insist there is no club-versus-country rift over the decision about whether Wayne Rooney will go to the World Cup.
United boss Sir Alex Ferguson has told Eriksson the club will have the final say on whether Rooney goes to the World Cup after the Swede said he would give the striker 'every chance' to play in the finals.
But Herren has given England the green light to name the 20-year-old in their initial squad if there is any hope of Rooney regaining his fitness during the tournament.
'Coaches will have players who are crucial to their team and who they hope will be fit in time for the tournament and this gives them a chance to recover fully right up to the beginning of their team's World Cup,' he told Sky Sports News.
'That provision is there for any player, provided a medical certificate confirms the injury.
'The diagnosis must be formed in a way that an independent observer or the FIFA medical specialist can logically draw a conclusion based on the case history and clinical findings.
'We had a similar approach over the last World Cup. The point is FIFA want to make sure the players are sufficiently rested and recuperated.
'But we want all coaches to have options open to them.'
Sir Alex has said the club will have the final say on whether their striker goes to Germany - after Eriksson said he would give the 20-year-old 'every chance' to recover from a broken metatarsal.
That has been interpreted in some quarters as meaning there could be conflict between United and the England camp.
But an FA spokesman said: 'There is no rift whatsoever. We are communicating very regularly there has been very good communication between Sir Alex and Sven.
'We are working together on what is best for Wayne and Manchester United and England.'
Rooney is Eriksson's most important player but United do not want to take any risks with the long-term fitness of their player after he suffered a broken metatarsal bone in his right foot during the 3-0 defeat at Chelsea last Saturday.
United's medical staff are in charge of Rooney's treatment but England team doctors are liaising with them.