7. Conclusions
In the third year that companies were subject to fleet average NOx requirements under the Regulations, a total of 22 companies submitted reports for 308 test groups comprising 1 423 961 vehicles of the 2006 model year manufactured or imported for the purpose of sale in Canada. The average NOx value for the entire Canadian LDV/LLDT fleet is 0.1023669 grams/mile compared to a fleet average NOx standard of 0.13 grams/mile. The average NOx value for the entire Canadian HLDT/MDPV fleet is 0.256539 grams/mile compared to a fleet average NOx standard of 0.33 grams/mile. The NOx values for both overall fleets remain better than the corresponding fleet average NOx standards, consistent with the environmental performance objectives of the Regulations.