Further work by the Department for Work and Pensions (DWP) into the employers' liability (EL) market is likely to be delayed following the ousting of Work Minister Nick Brown in Tony Blair's cabinet reshuffle.
The DWP released the first of two reports into EL in early June.
A second report looking at legal costs, rehabilitation and the possibility of separating long-tail disease claims from accident claims was due to be released in the autumn, but ABI head of general insurance John Parker said delays were likely.
"Clearly Nick Brown has been deeply immersed in this and it will take the new minister some time to get up to speed," he said.
Royal & SunAlliance technical insurances manager Phil Bell said Brown's likely replacement, Desmond Browne, might take a different view on the key issues in the EL market.
"It may well slow down the process of the review," Bell said.