The Public and Commercial Services union (PCS) said it had seen a report recommending the closure of several Driving Standards Agency (DSA) offices.

Three of the five regional centres in Edinburgh, Newcastle, Cardiff, Birmingham and London would close.

But a DSA spokeswoman told BBC News no decision had been made.

The review has been given the working title of 'Driving Safety Forward' but we think it will drive service standards down Paul Williams, PCS president

"We have commissioned a firm of consultants to look at the organisation of the DSA and we have recently received their report," she said.

"Their recommendations are currently being considered and will be discussed with the trade union.

"At the moment no decisions have been made."

But the PCS union said it believes jobs may be lost if the centres close and the level of service driving test applicants and driving instructors receive would be reduced.

Examiners are also angry at the changes in working practices that the report seeks to introduce.

Paul Williams, PCS president, said: "Unfortunately, like other government departments, the agency has become embroiled in a race to cut jobs and reduce costs without any thought for the impact on the level of service that the public receives.