Division 3.1.3 F1

Paragraph 3.5.1 of Annex 7 to UNECE Regulation No 49 shall be understood as follows:

1. 3.5.1.

   ‘ For each pollutant measured on the hot WHTC and WHSC tests at each test point during the service accumulation schedule, a “ best fit ” linear regression analysis shall be made on the basis of all test results. The results of each test for each pollutant shall be expressed to the same number of decimal places as the limit value for that pollutant, as shown in the table of Annex I to Regulation (EC) No 595/2009, plus one additional decimal place. In accordance with paragraph 3.2.1.4 of Annex 7 to Regulation UNECE No 49, if it has been agreed that only one test cycle (hot WHTC or WHSC) be run at each test point and the other test cycle (hot WHTC or WHSC) run only at the beginning and at the end of the service accumulation schedule, the regression analysis shall be made only on the basis of the test results from the test cycle run at each test point.

   At the request of the manufacturer and with the prior approval of the approval authority a non-linear regression shall be permitted. ’