The Swedish Road Administration to evaluating a system for
periodic inspection of Euro IV and V commercial vehicles, both EGR
and SCR, to ensure emissions compliance. There have been concerns
that some drivers are operating SCR vehicles without using AdBlue.
There is a particular focus on vehicles registered before October
2007 which do not have NOx Control systems installed and can
therefore be operated without any AdBlue. There is also a concern
that vehicles with NOx Control could be operated above the
emissions standard limit values for NOx but below the NOx Control
inducement thresholds, possibly by using diluted urea solution or
damaged emissions control equipment.
This process will be followed keenly by other European authorities
since it is the first detailed public study of periodic and
roadside inspection of Euro IV and V vehicles to ensure compliance
to emissions legislation.























