Division 10 OPERATING CONDITIONS OF THE AFTERTREATMENT SYSTEM

Manufacturers shall ensure that the emission control system retains its emission control function during all ambient conditions regularly found in the European Union, especially at low ambient temperatures. This includes taking measures to prevent the complete freezing of the reagent during parking times of up to 7 days at 258 K (– 15 °C) with the reagent tank 50 % full. If the reagent has frozen, the manufacturer shall ensure that reagent shall be available for use within 20 minutes of the vehicle starting at 258 K (– 15 °C) measured inside the reagent tank, so as to ensure correct operation of the emission control system.