Ron Gainsford, chief executive of the Trading Standards Institute, has become part of the car service and repair industry's code of practice.
Mr Gainsford will chair the Motor Code for Service and Repair compliance panel, which is responsible for keeping a check on the standards maintained by its member garages. He will take on the role of the chairman in the beginning of 2011.
The Motor Code for Service and Repair, which includes more than 6,500 garages, was set up after the industry was criticised for failing to maintain standards.
The panel can impose sanctions on garages, while it can also cancel their membership of the voluntary scheme.
Mr Gainsford said: "The Trading Standards Institute has worked with the automotive industry for many years now to encourage and support improvement in its transactions with consumers. We continue to see progress.
"At a time of extraordinary economic challenge, the need for mutual confidence can rarely have been more important."
The compliance panel independently monitors performance of member garages, while four independent delegates provide assistance in the process.
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