anx_II__para__21
3.3.2.1. After stabilisation, the engine will be run over the service accumulation schedule selected by the manufacturer, as described in section 3.2 above. At the periodic intervals in the service accumulation schedule determined by the manufacturer, and, where appropriate, also stipulated by the type-approval authority according to section 3.2.2, the engine shall be tested for gaseous and particulate emissions over the ESC and ETC tests. In accordance with section 3.2, if it has been agreed that only one test cycle (ESC or ETC) be run at each test point, the other test cycle (ESC or ETC) must be run at the beginning and end of the service accumulation schedule.
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Source: EUR-Lex (Cellar) · retrieved 2026-11-10 · Text as adopted (Official Journal); later amendments are not incorporated in this text.