The Independent Automotive Aftermarket Federation (IAAF) has responded to the results of the DVSA’s 2025 market surveillance programme (MSU), calling for more “principles” to be taken into account before arriving at a conclusion and encouraging the surveillance unit to focus efforts more on rogue online marketplace sellers.

The Federation fully supports the DVSA’s ongoing work to uphold standards and protect motorists from non-compliant vehicle parts. But, IAAF argues that the basis of any test should acknowledge that the principles of accuracy depend on a test being implemented correctly.

It is extremely difficult, as proven in the brake pad testing in the summer of 2022, to arrive at a conclusion of failure when the preparation of the vehicle may have introduced unintended variabilities.

Mark Field, IAAF Chief Executive, said: “The 2025 MSU programme demonstrates the importance of effective market surveillance, and we welcome the continuous co-operation from our members in working with the MSU to thoroughly investigate any matters brought to their attention.

“But, we need a greater focus on the removal of non-compliant products from non-co-operative sellers featured on online marketplaces. Our membership wants to see sustained enforcement against sellers supplying non-compliant parts, making misleading claims or engaging in fraudulent practices.

“Businesses investing in product quality, testing and compliance should be able to compete on a level playing field. Sellers who bypass these requirements undermine responsible suppliers and expose workshops and motorists to products that may fail to meet the required safety and environmental standards.”

IAAF is urging the DVSA to strengthen its work with online marketplaces to identify those responsible, verify product approval claims and prevent removed products from simply reappearing. Removing individual listings must be backed by action against persistent offenders.

Field added: “Surveillance must also be underpinned by robust testing, consistent reporting and fair treatment of businesses. Constructive engagement with manufacturers is essential to investigate concerns thoroughly and achieve lasting improvements.”