The EOBD (European On Board Diagnostics) regulations are the European equivalent of OBD-II. With the same SAE J1962 diagnostic link connector and signal protocols, the technical implementation of EOBD is essentially the same as OBD-II. With Euro V and Euro VI emission standards, its emission threshold is lower than previous Euro III and IV.
The system was mandated for all gasoline (petrol) vehicles of category M1 sold in EU member states since January 1, 2001 and for diesel engine cars two years later.
For newly introduced models, the regulation was applied a year earlier - January 1, 2000 for petrol and January 1, 2003 for diesel.
For passenger cars with a Gross Vehicle Weight rating of greater than 2500 kg and for light commercial vehicles, the regulation was applied from January 1, 2002 for petrol models, and January 1, 2007 for diesel models.