Proposal to introduce provisions to align UN R49 with recently introduced stage D EU legislation in order enable manufacturers to continue to utilize the provisions in paragraph 4 of Annex 9A to approve light commercial vehicles with a light duty OBD architecture under this regulation. This proposal incorporates all of the provisions of the latest amendment to EU legislation. As stage D is unrelated to OBD, the proposal is to make stage C and all subsequent stages equivalent to EOBD 6-2.

Proposal to clarify the wording of the determination of the net power for electric motors and to correct an error in the formula presented in paragraph 5.4.2. Diesel engines – Factor αd. The parameter “f_m” in the equation should be a superscript (e.g., meaning “to the power of f_m”). Through a transcription error, this factor was rendered in normal text.

Proposal to clarify the text with regard to the extension of approvals for category N vehicles in order to avoid a possible misinterpretation that extensions may not be granted to vehicles with a reference mass greater than the mass of the type-approved vehicle.

Proposal to adapt the 06 and 07 series of amendments to Regulation No. 83 to Selective Catalytic Reduction (SCR) warning and inducement systems to current vehicles, emissions requirements and reagent infrastructure. In light of further vehicle weight reduction for CO2 optimization and the resultant vehicle packaging challenges, diesel cars will likely have smaller AdBlue® reagent tanks. For passenger cars, the warning indicator to refill AdBlue® has to be activated at 2,400 km of remaining reagent range which could result in very frequent refills of smaller reagent tanks. This proposal would allow for reagent refill inducement warnings as a percentage of tank capacity or as a function of the average driving range with a complete tank of fuel.

Proposal to improve the “random check requirement” and define the rounding of test results calculated according to Annex 4A in the 05 series of amendments.

Proposal to improve the Engine Control Unit (ECU) torque signal validation requirement in the 06 series of amendments to R49 with regard to dual-fuel or flex-fuel vehicles. Under the regulation, the ECU torque information can be calibrated only to one fuel’s heat value (usually the basic reference fuel) even though the heat value of the alternative fuel is different. In order to increase the accuracy of the torque values used for calculating the emission results during in-service conformity testing, OICA proposes to change the provisions to either:

1. Demonstrate that both fuels comply because the ODB system is able to detect the fuel used, or
2. Determine the torque deviation caused by the alternative fuel heat value compared to the standard fuel and apply this correction factor to calculate a more accurate power signal for the emission calculation.

Proposal to clarify the fuel tank capacity restriction for mono-fuel gas vehicles. The definition of “mono-fuel gas vehicle” was slightly amended between the 06 and the 07 series of amendments to UN R83. This proposal aims to align the definitions across both series in order to avoid divergent interpretations.
Although the reference to a 15 liters tank has always been understood to refer to the nominal capacity of the tank, the use of the term “nominal capacity” in UN GTR No. 19 in several places other than the definition of “mono-fuel gas vehicle” can lead to other interpretations of the definition. The word “nominal” should therefore be inserted into the definition in both series of amendments.

Proposal to explicitly specify requirements related to the selection of driving modes for testing of Off-Vehicle Charging Hybrid Electric Vehicles (OVC-HEV) with a mode selection switch.

Proposal to allow the usage of WLTP-based Ki and Deterioration Factors (DF) as well as On-Board Diagnostics (OBD) demos under UN R83. The proposal allows the use of the more robust WLTP and eases testing burdens by allowing manufacturers to use WLTP test results for UN R83.

Proposal to explicitly specify requirements related to the selection of driving modes for testing of Off-Vehicle Charging Hybrid Electric Vehicles (OVC-HEV) with a mode selection switch.

Proposal to allow the usage of WLTP-based Ki and Deterioration Factors (DF) as well as On-Board Diagnostics (OBD) demos under UN R101. The proposal allows the use of the more robust WLTP and eases testing burdens by allowing manufacturers to use WLTP test results for UN R101.

Proposal to modify the Constant Volume Sampling system temperature sensor time response requirement.

Proposal to align UN R24 (Compression Ignition Engines – Emission of Visible Pollutants – Power Measurement) with UN R85 with regard to correction factors.

Proposal to align the provisions of the 03 series of amendments to UN R24 with UN R85. Other amendments are proposed in order to bring the format of UN R24 up to date.

Proposal to reduce testing burdens by introducing an alternative test method to “decrease the charge air cooler outlet temperature by the same amount that the ambient conditions for the vehicle test varied from the standard temperature.” This aligns with SAE J1349, “9.3 Application of Vehicle Transient Data to Net Power Test.”

Proposal to clarify the relationship between approval levels, reference fuels and PN limits for PI vehicles and to modify the calculation formulae for determination of evaporative emissions in accordance with changes already agreed in UN GTR No. 19.

Proposal to allow an alternative test method to “set the charge air cooler outlet temperature during bench test to temperature which was observed by vehicle test and corrected to the reference temperature specified in paragraph 5.2.1.” of Annex 5. This alternative method is well recognized in SAE J1349.

The objective of this document is to provide recommendations for the minimum quality of market fuels (i.e. gasoline and diesel) that should be introduced in parallel, and at the same time, with the corresponding emissions standards.They complement the motor vehicle and NRMM pollutant emission standards that a country or a region may be considering to introduce, or to update

Proposal to complete the clarification of the basis of the petrol tank capacity restriction for mono fuel gas vehicles and address some administrative issues that have been highlighted during the transposition of WLTP.

Proposal to introduce definitions for the terms “permanent” and “Limp-home routines” and to clarify ‘permanent emission default modes.

Proposal to adapt the provisions in UN R101 to allow the usage of road load powers which have been derived from those determined in accordance with UN GTR No. 15 (WLTP).

Proposal to permit the usage of the gaseous reference fuels described in UN Regulation No. 83 in order to reduce potential testing complexity.

Proposal to permit the use of the calibration and maintenance intervals from UN GTR No. 15 for test facilities capable of testing to that UN GTR.

Proposal to permit the use of the gaseous reference fuels described in UN R83 in order to reduce potential testing complexity.

Proposal to extend the option from the 06 and 07 to the 05 series of amendments allowing the calculation of road load values from those determined according to UN GTR No.15 (WLTP).

Proposal to correct an error found in the formulas used for the calculation of a NEDC road load values from those determined according to UN GTR No. 15 (WLTP) and a cross reference in both the 06 and 07 series of amendments to UN Regulation No. 83.

Proposal to correct an error found in the formulas used for the calculation of a NEDC road load values from those determined according to UN GTR No. 15 (WLTP) and a cross reference in the 01 series of amendments to UN Regulation No.101.

Proposal to correct an editorial error of exhaust after-treatment system monitoring requirement.

Proposal to clarify the scope and application of the regulation.

Proposal aims at permitting the use of the latest reference fuels for evaporative emissions approval of vehicles

Introduces a shortened test procedure for PEVs as well as an update of the COP test procedure in order to align with proceeding and procedures described in UN R154.

Consolidates the existing text of the Regulation with that of the reference document adopted by GRPE 82nd session

Proposes to allow the use of nitrogen as batch gas for FID fuel gas and introduces the requirements for humidity sensors.

Proposal to correct and clarify the text and to introduce linearity requirements for humidity sensors to address humidity content measurement for the calculation of the specific exhaust emission.

Proposal to introduce particle number requirements and limits for Level 1B. The proposal also aligns the particulate measurement procedures with changes introduced in GTR No 15 Amendment 6 and other adaptations to technical progress.

Proposal to ensure that Level 2 is the latest version of this Regulation and is therefore subject to mutual recognition under the 1958 Agreement, given that there is a concurrent proposal to for an 02 series of amendments which introduces particle number requirements and limits for Level 1B. This proposal for a 03 series of amendments also aligns the particulate measurement procedures with changes introduced in GTR No 15 Amendment 6 as well as other adaptations to technical progress.

Proposal to introduce provisions specific to special-purpose vehicles.

Proposal to align UN R24 with to align the UN R85 and ISO 1585:2020.

Proposal to align UN R85 with ISO 1585:2020.

Proposal to correct the recursive formula of the 05, 06 and 07 series of amendments to UN R83 in the procedure for verifying the conformity of production and to align the approval certificate in 06 and 07 series of amendments with recent changes to regulation UN R24.

Proposal to update the original text of UN R154 with corrections and clarifications identified during the development of the 02 series of amendments.

Proposal to update the 01 series of amendments with corrections and clarifications identified during the development of the 02 series of amendments.

Proposal to allow measurement equipment compliant with the technical requirements of UN R154 to be used for testing under UN R83.

Proposal to introduce the possibility to switch OFF rear position lamps and other lamps when ambient light conditions outside the vehicle are above 7,000 lux in order to avoid unnecessary fuel consumption (in alignment with UN R48 wording).

Proposal to introduce the possibility to switch OFF rear position lamps and other lamps when ambient light conditions outside the vehicle are above 7,000 lux in order to avoid unnecessary fuel consumption.

Proposal to introduce the possibility to switch OFF rear position lamps and other lamps when ambient light conditions outside the vehicle are above 7,000 lux in order to avoid unnecessary fuel consumption (in alignment with UN R48 wording).

Proposal to harmonize requirements for the determination of CO2, fuel and electric energy consumption of the discharge requirement for OVC-HEV with an operating mode switch with its stop criterion. The preconditioning requirement is also harmonized between the 01 series of amendments of UN Regulation No. 101 (Annex 9, determination of electric range) and 06 and 07 series of amendments of UN Regulation No. 83 (Annex 14, provisions for emissions test procedures for HEV).

Proposal to integrate exemptions for special purpose vehicles into UN R83.