(15 Feb 2026, 8:51 pm)PH - BQA wrote Why would they do any Euro 6 mods on them?

As I've posted previously, it looks like they can enter Newcastle without any additional work.

There is a known "fault" with the checker system, and DVLA vehicle enquiry service, with no correction in sight. A number of Euro 5 vehicles show up incorrectly as being Euro 6 because they were registered new after the Euro 6 implementation date for buses (May 2014?), assuming an emission rating rather than using factual records. The 64 plate E300s new to Stagecoach Stockton all show as being Euro 6, as do Hodgsons 17 plate E200s, despite being Euro 5. Some V5 registration documents will even show a Euro 5 emission rating but the checker and DVLA VES show them as Euro 6, so the correct information is in the system somewhere. An absolute mockery of a system in my opinion.

I suppose, from this, that the forum member has knowledge that the B9TLs are actually only Euro 5 and may be querying whether Arriva will legitimately upgrade them to Euro 6 to work into Newcastle or whether they shall exploit the loophole while it exists, as Stagecoach Cumbria appear to be while utilising ex Stockton E300s on 685.