Document ID: chunk:federal_register_of_legislation:F2024L00447:front:0:p14
Version: federal_register_of_legislation:F2024L00447
Segment Type: other
Provision Reference: 
Character Range: 40567–43733

conformity may be reassessed by additional RDE tests.

              The manufacturer shall ensure that all vehicles within the PEMS test family are compliant with UN Regulation No. 154 on WLTP, including conformity of production requirements.

              The RDE performance shall be demonstrated by performing the necessary tests in the PEMS test family on the road operated over their normal driving patterns, conditions and payloads. The necessary tests shall be representative for vehicles operated on their real driving routes, with their normal load.

              6.2. Facilitation of PEMS testing

              A Contracting Party shall ensure that vehicles can be tested with PEMS on public roads in accordance with the procedures under their own national law, while respecting local road traffic legislation and safety requirements.

              Manufacturers shall ensure that vehicles can be tested with PEMS. This shall include:

                  (a) Constructing the exhaust pipes in order to facilitate sampling of the exhaust, or making available suitable adapters for exhaust pipes for testing by the authorities;

                  (b) For Contracting Parties applying Regulation 83, 08 Series, in case the exhaust pipe construction does not facilitate sampling of the exhaust, the manufacturer shall also make available to independent parties, adapters for purchase or rent via their spare parts or service tools network (e.g. RMI portal), through authorised dealers or via a contact point on the referred publicly accessible website;

                  (c) Providing guidance available online, without the need of registration or login, on how to attach a PEMS system to vehicles approved under this Regulation;

                  (d) Granting access to ECU signals relevant to this Regulation, as mentioned in Table A4/1 of Annex 4; and

                  (e) Making the necessary administrative arrangements.

              6.3. Selection of vehicles for PEMS testing

              PEMS tests shall not be required for each 'vehicle type with regard to emissions' as defined in UN Regulation No. 154 on WLTP, hereinafter 'vehicle emission type'. Several vehicle emission types may be put together by the vehicle manufacturer to form a "PEMS test family" in accordance with the requirements of paragraph 6.3.1., which shall be validated in accordance with the requirements of paragraph 6.4.

              Symbols, parameters and units

N          —  Number of vehicle emission types

NT         —  Minimum number of vehicle emission types

PMRH       —  highest power-to-mass-ratio of all vehicles in the PEMS test family

PMRL       —  lowest power-to-mass-ratio of all vehicles in the PEMS test family

V_eng_max  —  maximum engine volume of all vehicles within the PEMS test family

6.3.1. PEMS test family building
              A PEMS test family shall comprise finished vehicles of a manufacturer with similar emission characteristics. Vehicle emission types may be included in a PEMS test family only as long as the vehicles within a PEMS test family are identical with respect to the characteristics in all the administrative