DVSA has advised that use of AdBlue emulators is an offence on a par with using a magnet to falsify drivers’ hours records. Such emissions cheating devices disable the AdBlue system.  Operators found using such devices will in all probability be subject to a full fleet maintenance inspection and referral to the area traffic commissioner, who are taking a dim view of operators using such devices.

What is surprising and questionable is the claim from operators that they were totally unaware.   We suggest that operators request their maintenance provider to, where possible, check for such devices at inspection.  A simple way for operators to check however is to monitor AdBlue usage.