7. The expert from the Russian Federation presented ECE/TRANS/WP.29/GRPE/2017/2 on amendments to the scope of Regulation No. 83. He explained that the proposal was aimed at allowing extensions of type approvals granted under Regulation No. 83 to special purpose vehicles.

8. The experts from CLEPA and OICA expressed some concerns on the limitation of 2,610 kg reference mass introduced by the definition of special purpose vehicle in ECE/TRANS/WP.29/GRPE/2017/2. The expert from Hungary suggested the use of existing definitions in the Consolidated Resolution on the Construction of Vehicles (R.E.3). Following the discussion, the experts from Hungary and the Russian Federation presented GRPE-74-22 to amend ECE/TRANS/WP.29/GRPE/2017/2 by deleting the definitions of special purpose vehicle and armoured vehicle and referring to R.E.3 instead.

9. GRPE adopted ECE/TRANS/WP.29/GRPE/2017/2 amended by GRPE-74-22 as reproduced in Annex IV and requested the secretariat to submit it to WP.29 and the Administrative Committee of the 1958 Agreement (AC.1) for consideration and vote at their June 2017 sessions as draft Supplement 10 to the 06 series of amendments and draft Supplement 6 to the 07 series of amendments to Regulation No. 83.

GRPE-74-22 | Proposal of changes to document GRPE/2017/2 concerning amendments to Regulation No. 83 Pursuant to GRPE discussions, the proposal adds the following paragraph to the amendment: "At the manufacturer's request, type approval granted under this Regulation may be extended from vehicles mentioned above to special purpose vehicles of categories M1, M2, N1 and N2 regardless of their reference mass. The manufacturer shall demonstrate to the Type Approval Authority which granted the type approval that the vehicle in question is a special purpose vehicle."

GRPE/2017/2 | Proposal for a new Supplement to the 06 and 07 series of amendments to Regulation No. 83 Proposal to allow the use of compliance assessments of vehicles with a reference mass less than 2,610 kg in extending the type approval to special purpose vehicles (including armoured ones) having a reference mass exceeding 2,840 kg. This proposal would align UN R83 with provisions of European Directive 2007/46/EC.

10. The expert from OICA withdrew ECE/TRANS/WP.29/GRPE/2017/5 on amendments to Regulation No. 83 to adapt the provisions on selective catalytic reduction warning and inducement systems to current vehicles, emissions requirements and reagent infrastructure. He mentioned that this is an urgent topic and that differences between European legislation and UN Regulations should be minimized. He announced his intention to address this topic first at the European level, and he invited all stakeholders to contribute to the discussion since the beginning.

GRPE/2017/5 | Proposal for a new Supplement to the 06 and 07 series of amendments to Regulation No. 83 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. For heavy-duty vehicles, the warning has to be activated at least at a reagent level of 10 per cent of total reagent tank volume. The inducement system has to be activated at least at 2.5 per cent of reagent level.

11. The Secretary of GRPE presented ECE/TRANS/WP.29/2017/42, ECE/TRANS/WP.29/2017/43 and ECE/TRANS/WP.29/2017/44 on transitional provisions to be introduced in Regulations Nos. 83 and 101 as an interim solution while the Worldwide harmonized Light vehicles Test Procedure (WLTP) is transposed into the 1958 Agreement. He explained that these documents were prepared by the Secretariat as agreed by WP.29 at its June 2016 session. Following the request of WP.29 and taking into account the urgency of the topic, he explained that the three proposals were already submitted to WP.29 and AC.1 for consideration and vote at their March 2017 sessions, but subject to the endorsement of GRPE at this session.

12. The expert from OICA presented GRPE-74-16 on some modifications to the wording of ECE/TRANS/WP.29/2017/42, ECE/TRANS/WP.29/2017/43 and ECE/TRANS/WP.29/2017/44. The expert from EC stated that he was not in the position to accept the changes introduced by GRPE-74-16.

13. Following the discussion, GRPE endorsed ECE/TRANS/WP.29/2017/42, ECE/TRANS/WP.29/2017/43 and ECE/TRANS/WP.29/2017/44 to be further considered by WP.29 and AC.1 at their March 2017 sessions.

GRPE-74-16 | Proposal for amendments to ECE/TRANS/WP.29/2017/42, ECE/TRANS/WP.29/2017/43 and ECE/TRANS/WP.29/2017/44 The subject documents would permit Contracting Parties applying UN R83 and/or UN R101 and which have transposed GTR No. 15 (WLTP) into their local legislation to refuse to accept type approvals granted under the UN R83 and/or UN R101 as a compliance alternative to their national/regional legislation (i.e., aligned with GTR No. 15). OICA proposes to clarify the intent by deleting allusions to the measure as a form of derogation, to replace the phrase "may no longer accept" with "may refuse", and to introduce a sunset clause to noting that the measure is intended as a stop-gap until such time as GTR No. 15 has been transposed into the corpus of UN Regulations.

WP.29/2017/42 | Proposal for Supplement 9 to the 06 series of amendments to Regulation No. 83 Proposal, subject to endorsement by the GRPE during its January 2017 session, to permit Contracting Parties applying UN R83 and GTR No. 15 (WLTP) to refuse type approvals granted under UN R83 as an alternative to compliance with their national/regional legislation from the date of entry into force of Supplement 9 to the 06 series of amendments to UN R83.

WP.29/2017/43 | Proposal for Supplement 5 to the 07 series of amendments to Regulation No. 83 Proposal, subject to endorsement by the GRPE during its January 2017 session, to permit Contracting Parties applying UN R83 and GTR No. 15 (WLTP) to refuse type approvals granted under UN R83 as an alternative to compliance with their national/regional legislation from the date of entry into force of Supplement 5 to the 07 series of amendments to UN R83.

WP.29/2017/44 | Proposal for Supplement 7 to the 01 series of amendments to Regulation No. 101 Proposal, subject to endorsement by the GRPE during its January 2017 session, to permit Contracting Parties applying UN R101 and GTR No. 15 (WLTP) to refuse type approvals granted under UN R101 as an alternative to compliance with their national/regional legislation from the date of entry into force of Supplement 7 to the 01 series of amendments to UN R101.

14. The Vice-Chair of the IWG on WLTP reported on the progress made by the group on each of the tasks of the Phase 2 activities (GRPE-74-11).

GRPE-74-11 | Status report of the WLTP informal group

15. The drafting coordinator of the IWG on WLTP presented ECE/TRANS/WP.29/GRPE/2017/7 on amendments to UN global technical regulation (GTR) No. 15 on WLTP. He also presented GRPE-74-02-Rev.1 introducing some changes to ECE/TRANS/WP.29/GRPE/2017/7 and he referred to GRPE-74-03-Rev.1 as a consolidated version of both documents. He introduced the technical report on the further development of WLTP (GRPE-74-05). He clarified that the technical report was a consolidated version combining all phases of the development of GTR No. 15 up to now.

16. GRPE adopted ECE/TRANS/WP.29/GRPE/2017/7 as amended by Annex V to this report and requested the secretariat to submit it to WP.29 and the Executive Committee of the 1998 Agreement (AC.3) for consideration and vote at their June 2017 sessions as draft Amendment 2 to GTR No. 15 on WLTP. GRPE also adopted the technical report (GRPE-74-05) as reproduced in Addendum 1 to this report and requested the secretariat to submit it to WP.29 and AC.3 for consideration and vote at their June 2017 sessions.

GRPE-74-02/Rev.1 | Proposal for amendments to ECE/TRANS/WP.29/GRPE/2017/7 (Amendment 2 to GTR No. 15) WLTP informal working group refinements to the amendment proposal.

GRPE-74-03/Rev.1 | Consolidated revision of GTR No. 15 incorporating Amendment 2 Complete version of GTR No. 15 including the proposed Amendment 2 (GRPE/2017/7) and latest refinements by the WLTP informal group (GRPE-74-02). Amendment 2 corresponds to phase 2a development of the GTR, including the following modification to the text:<ol class="alpha"><li>If an alternative value is applied for a parameter, such as a higher n_min_drive or an ASM, this parameter value has to be the same within an interpolation family (Paragraph 5.6.1.).</li><li>The mass in running order used for the calculation of the power to mass ratio is replaced by mass in running order minus 75 kg (paragraph 1. of Annex 1).</li><li>Idle engine speed n_idle is removed from the power curve measurement requirement (paragraph 2. of Annex 2).</li><li>The additional safety margin (ASM) value may be decided by manufacturer rather than the prescribed exponential curve (paragraph 3.4. of Annex 4).</li><li>The number of decimal place of road load coefficients is defined (paragraph 2.4. of Annex 4).</li><li>Additional restrictions are set to the application of the split run method for coastdown testing (paragraph 4.3.1.3.4. of Annex 4).</li><li>Specific data rejection criteria are added (paragraph 4.3.1.4.3. of Annex 4).</li><li>The “delta method” for road load determination is added (paragraph 6.8. of Annex 4 and other paragraphs. See section 4.4.25.for more detail).</li><li>The roller radius correction factor is modified(paragraph 6.6.3. of Annex 4).</li><li>The allowable combination of the test vehicle selection and family requirements are further clarified (paragraph 4.2.1.3. of Annex 4 and other paragraphs of Annex 4).</li><li>Provisions for an additional cooling fan are included(paragraph 1.1.5. and 1.1.6. of Annex 5).</li><li>The correction of measurement/recording frequency requirements are specified (over several annexes).</li><li>Calculation of the n/v ratio is defined (paragraph 8. of Annex 7).</li><li>The stepwise procedure for calculating the final test results of OVC-HEVs is added (paragraph 4.6. of Annex 8).</li></ol>

GRPE-74-05 | Technical report on the development of global technical regulation No. 15 on WLTP including Amendment 2 Official technical report detailing the rationale and decision-making behind the development of Amendment 2 (Development Phase 2a) of GTR No. 15.

GRPE/2017/7 | Proposal for Amendment 2 to global technical regulation No. 15 Amended Phase 2a Worldwide Light vehicles emissions Test Procedure (WLTP). Versions of the amended GTR highlighting the changes to the original regulation are available in <a href="http://www.unece.org/fileadmin/DAM/trans/doc/2016/wp29grpe/ECE-TRANS-WP29-GRPE-2017-07e__Track_changes_.docx">word format</a> and <a href="http://www.unece.org/fileadmin/DAM/trans/doc/2016/wp29grpe/ECE-TRANS-WP29-GRPE-2017-07e__Track_changes_.pdf">pdf format</a>. The amendments address:<ol class="alpha"><li>If an alternative value is applied for a parameter, such as a higher n_min_drive or an ASM, this parameter value has to be the same within an interpolation family (Paragraph 5.6.1.).</li><li>The mass in running order used for the calculation of the power to mass ratio is replaced by mass in running order minus 75 kg (paragraph 1. of Annex 1).</li><li>Idle engine speed n_idle is removed from the power curve measurement requirement (paragraph 2. of Annex 2).</li><li>The additional safety margin (ASM) value may be decided by manufacturer rather than the prescribed exponential curve (paragraph 3.4. of Annex 4).</li><li>The number of decimal place of road load coefficients is defined (paragraph 2.4. of Annex 4).</li><li>Additional restrictions are set to the application of the split run method for coastdown testing (paragraph 4.3.1.3.4. of Annex 4).</li><li>Specific data rejection criteria are added (paragraph 4.3.1.4.3. of Annex 4).</li><li>The “delta method” for road load determination is added (paragraph 6.8. of Annex 4 and other paragraphs. See section 4.4.25.for more detail).</li><li>The roller radius correction factor is modified(paragraph 6.6.3. of Annex 4).</li><li>The allowable combination of the test vehicle selection and family requirements are further clarified (paragraph 4.2.1.3. of Annex 4 and other paragraphs of Annex 4).</li><li>Provisions for an additional cooling fan are included(paragraph 1.1.5. and 1.1.6. of Annex 5).</li><li>The correction of measurement/recording frequency requirements are specified (over several annexes).</li><li>Calculation of the n/v ratio is defined (paragraph 8. of Annex 7).</li><li>The stepwise procedure for calculating the final test results of OVC-HEVs is added (paragraph 4.6. of Annex 8).</li></ol>

17. The expert from EC presented ECE/TRANS/WP.29/GRPE/2017/3 on a draft new GTR on evaporative emission test procedure for WLTP (WLTP EVAP). He clarified that the current proposal focuses on the evaporative emissions that can occur during parking events, so running losses and refuelling emissions are out of the scope for the time being. He explained that the test procedure for sealed fuel tank systems will be introduced at a later stage. He introduced the technical report on the development of the draft new GTR (GRPE-74-04).

GRPE-74-04 | Draft technical report on the development of a new global technical regulation on Evaporative emission test procedure for the Worldwide harmonized Light vehicles Test Procedure (WLTP EVAP)

GRPE/2017/3 | Proposal for a new GTR on evaporative emissions test procedures under the Worldwide harmonized Light vehicles Test Procedure (WLTP EVAP) Text prepared by the Evaporative emissions Task Force of the WLTP informal working group in line with Phase 2 of its mandate (ECE/TRANS/WP.29/AC.3/44). The WLTP referred to a first draft of this proposal (GRPE-73-12) at the seventy-third session of GRPE (see report ECE/TRANS/WP.29/GRPE/73, para. 12).

18. The expert from ETRMA presented GRPE-74-10 to highlight that emissions from tyres should be excluded from the test procedure in the draft new GTR on WLTP EVAP. He explained that tyres should be removed at the stage of vehicle preparation, since they are not part of the fuel storing system and they may add some uncertainty to the test.

GRPE-74-10 | Highlights related to ECE/TRANS/WP.29/GRPE/2017/3 on WLTP EVAP Pursuant to the development of a GTR on evaporative emissions under the WLTP informal group, ETRMA presents its views on the draft procedure in order to clarify the role of tyres.

19. GRPE adopted ECE/TRANS/WP.29/GRPE/2017/3 and requested the secretariat to submit it to WP.29 and AC.3 for consideration and vote at their June 2017 sessions as a new draft GTR on evaporative emission test procedure for WLTP (WLTP EVAP). GRPE also adopted the technical report (GRPE-74-04) as reproduced in Addendum 2 to this report and requested the secretariat to submit it to WP.29 and AC.3 for consideration and vote at their June 2017 sessions.

GRPE-74-04 | Draft technical report on the development of a new global technical regulation on Evaporative emission test procedure for the Worldwide harmonized Light vehicles Test Procedure (WLTP EVAP)

GRPE/2017/3 | Proposal for a new GTR on evaporative emissions test procedures under the Worldwide harmonized Light vehicles Test Procedure (WLTP EVAP) Text prepared by the Evaporative emissions Task Force of the WLTP informal working group in line with Phase 2 of its mandate (ECE/TRANS/WP.29/AC.3/44). The WLTP referred to a first draft of this proposal (GRPE-73-12) at the seventy-third session of GRPE (see report ECE/TRANS/WP.29/GRPE/73, para. 12).

20. The expert from EC presented a status report on the WLTP Task Force dealing with the transposition of WLTP into the 1958 Agreement (GRPE-74-20). He informed that the Task Force had not met yet, but the first meeting would take place in February 2017. For the [adaptation] of the 1958 Agreement to include WLTP, he explained the intention was to follow a two-step approach: first, introduction of transitional provisions in Regulations Nos. 83 and 101 (see paras. 11-13 above); second, full transposition of GTR No. 15 into new Regulations under the 1958 Agreement. He recalled previous presentations by EC and the Secretariat on possible ways to structure these new Regulations (GRPE-72-18 and GRPE-73-26).

21. GRPE agreed to further discuss the transposition of WLTP into the 1958 Agreement at the next GRPE session on the basis of the work carried out by the WLTP Task Force dealing with this topic.

GRPE-72-18 | Transposition of GTR No. 15 WLTP into EU Regulations and UN/ECE Regulations

GRPE-73-26 | Comments on the transposition process of GTR No. 15 (WLTP) into UN Regulation (1958 Agreement)

GRPE-74-20 | Transposition of GTR 15 (WLTP) into UN Regulations under the 1958 Agreement European Commission report on the effort to transpose the GTR on light vehicle emissions into UN type approval regulations, including handling of current UN Regulations on emissions (notably, UN R83 and UN R101) and process for implementing the WLTP requirements.

22. GRPE acknowledged the progress made by the IWG on WLTP and noted the request for a meeting room for one day during the GRPE week in June 2017.