Back in June of 2007, the powers-that-be in Europe officially introduced EURO 5 emissions regulations (.pdf link), and these standards are ... cycles through the EURO 4 requirements in 2012 ...

Back in November, the European Commission published an initial proposal for the upcoming Euro VI emission standards ... reduction in NOx (down to 0.4 g/kWh ) and a 66 reduction in the PM emission ...

the RTA has plans to gradually adopt the more strict Euro 4 and 5 standards. How is the air pollution being monitored currently? Currently, the air pollution is monitored through the emission ...

emissions for the clean air zones. The ULEZ standard for passenger cars is Euro 4 (or equivalent) for petrol cars and Euro 6 (or equivalent) for diesels, and it’s important to remember that it ...