GAR | GRPE-87-13/Rev.2

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Document Title	UN R83: Proposal for additional content in GRPE/2023/10
Reference Number	GRPE-87-13/Rev.2
Date	31 Jan 2023
Summary	Proposal for changes to the draft amendments to the 05, 06, and 07 series per the following justifications: In GRPE-86-12, the introduction of SAE J 1979-2 was proposed for Series 05, 06 and 07 of Regulation No. 83. Due to the different structure of Series 05 and 06 compared to 07, this proposal was not adopted. This proposal introduces the new standard to Series 05 and 06 and aligns the standards with Series 07. The standards used for transmission of OBD information are maintained by international standardisation bodies (ISO, SAE). These standardisation body have to be informed. Alignment of wording between the first sentence of paragraph 3.2.1.2. (“ambient or engine temperatures”) and the second sentence, where “or engine” was missing to avoid misunderstanding and ambiguity. Engine temperature is sometimes used as a substitute for ambient temperature. In this case, the engine temperature is evaluated once after a longer engine shut off phase. Only in this case an approval is necessary, as this is the only case, where an OBD monitor is disabled for the complete trip. Align Paragraph 6.5.1.3. with GTR No. 15 to avoid ambiguity.
Source(s)	OICA
Rulemaking Area(s)	UN R83 Motor Vehicle Emissions
Proposal Status	Superseded
Meeting(s)	GRPE \| Session 87 \| 10-13 Jan 2023 3. (a) UN Regulations Nos. 68, 83, 101, 103, and 154 3. (a) UN Regulations Nos. 68, 83, 101, 103, and 154 16. Any other business
Related Documents
	GRPE/2023/10		UN R83: Proposal for a new Supplement to the 06 and 07 series of amendments (superseded)
	GRPE-86-12		UN R83 : Proposal to amend the proposal for a new Supplement to the 05, 06 and 07 series of amendments (superseded)
	WP.29/2023/61		UN R83: Proposal for Supplement 17 to the 05 series of amendments (adopted)
	WP.29/2023/62		UN R83: Proposal for Supplement 19 to the 06 series of amendments (adopted)
	WP.29/2023/63		UN R83: Proposal for Supplement 16 to the 07 series of amendments (adopted)
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Excerpts from session reports related to this document
GRPE \| Session 87 \| 10-13 Jan 2023			13. The representative from OICA introduced GRPE-87-13-Rev.2. The representative from the Netherlands sought clarification on the modifications provided in the revision of this document. The representative from OICA clarified the justification had been improved. The representative from Japan suggested to add the word “coolant” between the words “engine temperature” for better clarity. GRPE agreed with the content of the proposal. 12. The representative from OICA introduced ECE/TRANS/WP.29/GRPE/2023/10, ECE/TRANS/WP.29/GRPE/2023/11 and ECE/TRANS/WP.29/GRPE/2023/12, which content had already been discussed in previous sessions of GRPE. GRPE agreed with the content of the proposal. 14. GRPE adopted GRPE-87-13-Rev.2 as reflected in Annex IV to the session and requested the secretariat to submit it to WP.29 and AC.1 for consideration and vote at their June 2023 sessions as draft new supplement to the 05 Series of Amendments to UN Regulation No. 83. 15. GRPE adopted ECE/TRANS/WP.29/GRPE/2023/10 and GRPE-87-13-Rev.2, as combined in Annex V to the session report, and requested the secretariat to submit it to WP.29 and AC.1 for consideration and vote at their June 2023 sessions as draft new supplement to the 06 Series of Amendments to UN Regulation No. 83. 16. GRPE adopted ECE/TRANS/WP.29/GRPE/2023/10 and GRPE-87-13-Rev.2, as combined in Annex VI to the session report, and requested the secretariat to submit it to WP.29 and AC.1 for consideration and vote at their June 2023 sessions as draft new supplement to the 07 Series of Amendments to UN Regulation No. 83 respectively.