5. The expert from the Republic of Korea introduced the progress report (GRSP-72-11) of Informal Working Group on Deployable Pedestrian Protection Systems (IWG DPPS). He informed GRSP that the following issues had been resolved by IWG: (a) detection area definition, (b) numerical simulation for Head Impact Time (HIT) against Wrap Around Distance (WAD) information (linear regression), (c) head test area marking with un-deployed DPPS and (d) overshooting phase (dynamic testing). He added that discussion was ongoing on a new wording in the preamble and a final agreement on HIT. He introduced the text of the proposed amendment to the preamble (GRSP-72-08) and the amendment to the text of the regulation (GRP-72-09 amending ECE/TRANS/WP.29/GRSP/2022/2). Finally, he informed GRSP that the final report of IWG would be submitted to the May 2023 session of GRSP.

6. GRSP agreed to resume discussion on the draft Amendment 3 to UN GTR No. 9 on DPPS at its May 2023 session, based on a consolidated text of the amendments (preamble and text of the regulation combined) and on a final report of IWG on DPPS. GRSP requested its experts to provide feedback on GRSP-72-08 and GRSP-72-09 to the expert from the Republic of Korea before the deadline for submission of official documents (20 February 2023) of its May 2023 session.

13. The expert from Japan introduced GRSP-69-23 through a presentation (GRSP-69-24), aimed at solving the issue of safety-belt slipping up to the neck and submarining occurring in some cases when the booster seat was fixed to the vehicle by an ISOFIX attachment increasing the risk of child occupant’s neck and abdomen injuries. The experts from the CLEPA and OICA requested a study reservation on the proposal. GRSP agreed to resume discussion at its December 2021 session and requested the secretariat to distribute GRSP-69-23 with an official symbol at its next session.

11. The expert from Japan introduced ECE/TRANS/WP.29/GRSP/2021/19 on the safety-belts of seat positions equipped with the lower ISOFIX anchorages. He also introduced presentation GRSP-70-32 highlighting that the maximum values of pelvis acceleration and lap belt force of rear dummies were larger than those of front dummies. The expert from OICA introduced GRSP-70-25 showing that data from the expert of Japan showed that for booster seats secured by both safety-belt and ISOFIX could cause slack in the belt system which leads to increased dummy loadings. Therefore, he suggested that booster seats with ISOFIX attachments should be type approved according to UN Regulation No. 129 as “specific to vehicle” and not as “universal” or “i-Size”. GRSP agreed to resume discussion on the proposal at its May 2022 session.

16. The expert from the Netherlands presented the status report of the Ad Hoc Group on CRS (GRSP-73-15) as an introduction to GRSP-73-16-Rev.2 (superseding ECE/TRANS/WP.29/GRSP/2023/9), which allows the use of Lower Tether Anchorages (LTA) as anti-rotation devices. He added that the proposal would not mandate the use of LTA, but would ensure that use be unambiguous, and that users be informed correctly. He also explained that the proposal would be accompanied by parallel proposals to UN Regulations Nos. 129 and 145. The expert from OICA introduced GRSP-73-24 to provide consistency on transitional provisions with other proposals of amendments to the UN Regulation. GRSP adopted ECE/TRANS/WP.29/GRSP/2023/9, as amended by annex III to the session report. GRSP requested the secretariat to submit the proposal as the draft 09 Series of Amendments to UN Regulation No. 16 for consideration and vote at the November 2023 sessions of WP.29 and AC.1.

19. The expert from Germany introduced GRSP-70-17 (superseding ECE/TRANS/WP.29/GRSP/2019/18), concerning new provisions to cope with Adjustable Ride Height Suspension System (ARHSS). GRSP agreed to distribute GRSP-70-17 with an official symbol at its May 2022 session, as draft 04 series of amendments to UN Regulation No. 127.

22. The expert from Germany introduced ECE/TRANS/WP.29/GRSP/2022/24, on new provisions to cope with the Adjustable Ride Height Suspension System (ARHSS). GRSP also considered GRSP-71-15-Rev.3 amending ECE/TRANS/WP.29/GRSP/2022/24. GRSP adopted ECE/TRANS/WP.29/GRSP/2022/4 as amended by annex II (GRSP-71-15-Rev.3) to the report. The secretariat was requested to submit the proposal as the draft 04 series of amendments to UN Regulation No. 127 (Pedestrian Safety) for consideration and vote at the November 2022 sessions of WP.29 and AC.1. Moreover, GRSP agreed that the GRSP Chair would seek guidance at the WP.29 June 2022 session, highlighting the May 2022 session of GRSP, concerning the interpretation of the acceptance of type approvals to the preceding series of amendments (singular or plural) to be mentioned in transitional provisions of UN Regulations in general. In the meantime, GRSP agreed that the expert of Japan (Ambassador of IWVTA to GRSP) would inform the meeting of IWVTA IWG about this issue prior to the June 2022 session of WP.29.

83. The Chair of GRSP introduced the proposal of Amendment 3, Addendum 1 to Mutual Resolution No. 1 (M.R.1) (ECE/TRANS/WP.29/2022/141), aimed at improving the application of Addendum 1 of M.R.1 when used by laboratories to maintain and certify the Biofidelic Rear Impact Dummy II (BioRID-II) UN dummy. He added that the proposal seeks to clarify interpretation, that could affect the outcome of the dummy calibration.

84. WP.29 considered and endorsed the proposal for amendments to Mutual Resolution No. 1 under agenda item 4.17.1. and submitted it to AC.3 for final approval.

150. Submitted for consideration and vote, the proposal for Amendment 3, Addendum 1 to Mutual Resolution No. 1 was adopted on 15 November 2022 by consensus vote of Australia, Canada, China, European Union (representing Cyprus, Finland, France, Germany, Hungary, Italy, Lithuania, Luxembourg, Netherlands, Romania, Slovakia, Slovenia, Spain, and Sweden), India, Japan, Norway, Republic of Korea, Russian Federation, South Africa, Tunisia, Türkiye, United Kingdom of Great Britain and Northern Ireland and United States of America.

24. GRSP resumed discussion on a proposal of amendment to UN Regulation No. 100, tabled by the expert from CLCCR that would introduce provisions for a type of electric axle in a trailer (ECE/TRANS/WP.29/GRSP/2022/14 and GRSP-72-18 amending it). The expert from France presented GRSP-72-27, introducing some comments and amendments to the proposal. GRSP agreed to resume discussion on a revised proposal introducing provisions for a type of electric axle tabled by the expert from CLCCR in cooperation with the expert from France at its May 2023 session.

59. The expert from the Netherlands introduced GRSP-72-33 on a possible solution to harmonize the three-dimensional H-Point Machine (3D HPM). He informed GRSP that the Working Party on General Safety Provisions already begun work with an ad hoc group supported by the expert from Spain. GRSP agreed to resume consideration on GRSP-72-33 and on the outcome of discussion of a group of interested experts (China, the Netherlands, Spain CLEPA and OICA) at its May 2023 session.

20. The expert from Germany reiterated his proposal (ECE/TRANS/WP.29/GRSP/2019/18) and referred to agenda item 3(a) (see paragraph 4). The expert from OICA introduced GRSP-67-07 as a counterproposal, aimed at clarifying the issue that vehicle height has an influence on the test results of headform and legform tests, and consequentially all possible vehicle heights up to a driving speed of 11.1 m/s (40 km/h) should be considered to be relevant for impact with a pedestrian. Germany stated its agreement, in general, with the OICA proposal but suggested further clarifications. GRSP agreed to resume discussion at its December 2020 session on the basis of a potentially revised proposal from the experts of Germany, the United Kingdom and OICA.

19. The expert from Germany introduced GRSP-70-17 (superseding ECE/TRANS/WP.29/GRSP/2019/18), concerning new provisions to cope with Adjustable Ride Height Suspension System (ARHSS). GRSP agreed to distribute GRSP-70-17 with an official symbol at its May 2022 session, as draft 04 series of amendments to UN Regulation No. 127.

22. The expert from Germany introduced ECE/TRANS/WP.29/GRSP/2022/24, on new provisions to cope with the Adjustable Ride Height Suspension System (ARHSS). GRSP also considered GRSP-71-15-Rev.3 amending ECE/TRANS/WP.29/GRSP/2022/24. GRSP adopted ECE/TRANS/WP.29/GRSP/2022/4 as amended by annex II (GRSP-71-15-Rev.3) to the report. The secretariat was requested to submit the proposal as the draft 04 series of amendments to UN Regulation No. 127 (Pedestrian Safety) for consideration and vote at the November 2022 sessions of WP.29 and AC.1. Moreover, GRSP agreed that the GRSP Chair would seek guidance at the WP.29 June 2022 session, highlighting the May 2022 session of GRSP, concerning the interpretation of the acceptance of type approvals to the preceding series of amendments (singular or plural) to be mentioned in transitional provisions of UN Regulations in general. In the meantime, GRSP agreed that the expert of Japan (Ambassador of IWVTA to GRSP) would inform the meeting of IWVTA IWG about this issue prior to the June 2022 session of WP.29.

19. The expert from the Republic of Korea introduced the status report (GRSP-73-43) of the Ad Hoc Group on Safety-Belt Reminders (SBR). He informed GRSP that the Group agreed to clarify and resolve three SBR issues introduced at the seventy-second session of GRSP (GRSP-72-13). He concluded that the Group planned to convene virtually at the end of May to seek basis for a proposal for discussion at the December 2023 session of GRSP. The expert from France introduced ECE/TRANS/WP.29/GRSP/2023/17, to clarify: (a) how to assess SBR connection in the case of removable seats and (b) test procedure of SBR. The expert from OICA reiterated that GRSP-73-24 also amends ECE/TRANS/WP.29/GRSP/2023/17. GRSP adopted ECE/TRANS/WP.29/GRSP/2023/17 as amended by annex III to the session report. GRSP requested the secretariat to submit the proposal as part of the draft 09 Series of Amendments (paragraphs 17 to 19) to UN Regulation No. 16 for consideration and vote at the November 2023 sessions of WP.29 and AC.1.

16. GRSP resumed discussion on a proposal (ECE/TRANS/WP.29/GRSP/2022/13) tabled by the expert from France on clarifying the assessment of the connection of the Safety-Belt Reminder (SBR) system in the case of removable seats. GRSP also noted a presentation (GRSP-72-23) to introduce a proposal for a new series of amendments (GRSP-72-22). The expert from France explained that the proposal would clarify the requirements for SBR systems on test procedure (first- and second-level warning), visual warning and requirements for SBR in the rear seat row(s).

17. GRSP agreed to resume discussion at its May 2023 session on a revised document combining GRSP-72-22 and ECE/TRANS/WP.29/GRSP/2022/13, as a new series of amendments. GRSP requested its experts to provide feedback on GRSP-72-22 and ECE/TRANS/WP.29/GRSP/2022/13 to the expert from France before the deadline for submission of official documents for the May 2023 session.

20. GRSP discussed a proposal of amendment to UN Regulation No. 100, tabled by the expert from CLCCR that would introduce provisions for a type of electric axle in a trailer (GRSP-71-06). Following a study reservation from a number of experts, GRSP agreed to resume discussion on GRSP-71-06 at its December 2022 session and requested the secretariat to distribute the proposal with an official symbol at that session.

24. GRSP resumed discussion on a proposal of amendment to UN Regulation No. 100, tabled by the expert from CLCCR that would introduce provisions for a type of electric axle in a trailer (ECE/TRANS/WP.29/GRSP/2022/14 and GRSP-72-18 amending it). The expert from France presented GRSP-72-27, introducing some comments and amendments to the proposal. GRSP agreed to resume discussion on a revised proposal introducing provisions for a type of electric axle tabled by the expert from CLCCR in cooperation with the expert from France at its May 2023 session.

42. The expert from Germany introduced ECE/TRANS/WP.29/GRSP/2022/22, ECE/TRANS/WP.29/GRSP/2022/23 and ECE/TRANS/WP.29/GRSP/2022/24 to reintroduce a text that allows tolerances of the vehicle mass and simplified testing into UN Regulations Nos. 94, 95 and 137. Moreover, GRSP noted GRSP-72-46, jointly prepared by the experts from Germany and the Netherlands, to re-introduce the same provisions into UN Regulation No. 135.

43. GRSP adopted ECE/TRANS/WP.29/GRSP/2022/22, ECE/TRANS/WP.29/GRSP/2022/23 and ECE/TRANS/WP.29/GRSP/2022/24, all not amended, and GRSP-72-46, as reproduced in annex VII to the session report. The secretariat was requested to submit the proposals – as draft Supplement 2 to the 04 series of amendments to UN Regulation No. 94 (ECE/TRANS/WP.29/GRSP/2022/22), draft Supplement 3 to the 05 series of amendments to UN Regulation No. 95 (ECE/TRANS/WP.29/GRSP/2022/23), draft Supplement 3 to the 02 series of amendments to UN Regulation No. 137 (ECE/TRANS/WP.29/GRSP/2022/24), and draft Supplement 1 to the 02 series of amendment to UN Regulation No. 135 (GRSP-72-46) – to the June 2023 sessions of WP.29 and AC.1.

42. The expert from Germany introduced ECE/TRANS/WP.29/GRSP/2022/22, ECE/TRANS/WP.29/GRSP/2022/23 and ECE/TRANS/WP.29/GRSP/2022/24 to reintroduce a text that allows tolerances of the vehicle mass and simplified testing into UN Regulations Nos. 94, 95 and 137. Moreover, GRSP noted GRSP-72-46, jointly prepared by the experts from Germany and the Netherlands, to re-introduce the same provisions into UN Regulation No. 135.

43. GRSP adopted ECE/TRANS/WP.29/GRSP/2022/22, ECE/TRANS/WP.29/GRSP/2022/23 and ECE/TRANS/WP.29/GRSP/2022/24, all not amended, and GRSP-72-46, as reproduced in annex VII to the session report. The secretariat was requested to submit the proposals – as draft Supplement 2 to the 04 series of amendments to UN Regulation No. 94 (ECE/TRANS/WP.29/GRSP/2022/22), draft Supplement 3 to the 05 series of amendments to UN Regulation No. 95 (ECE/TRANS/WP.29/GRSP/2022/23), draft Supplement 3 to the 02 series of amendments to UN Regulation No. 137 (ECE/TRANS/WP.29/GRSP/2022/24), and draft Supplement 1 to the 02 series of amendment to UN Regulation No. 135 (GRSP-72-46) – to the June 2023 sessions of WP.29 and AC.1.

42. The expert from Germany introduced ECE/TRANS/WP.29/GRSP/2022/22, ECE/TRANS/WP.29/GRSP/2022/23 and ECE/TRANS/WP.29/GRSP/2022/24 to reintroduce a text that allows tolerances of the vehicle mass and simplified testing into UN Regulations Nos. 94, 95 and 137. Moreover, GRSP noted GRSP-72-46, jointly prepared by the experts from Germany and the Netherlands, to re-introduce the same provisions into UN Regulation No. 135.

43. GRSP adopted ECE/TRANS/WP.29/GRSP/2022/22, ECE/TRANS/WP.29/GRSP/2022/23 and ECE/TRANS/WP.29/GRSP/2022/24, all not amended, and GRSP-72-46, as reproduced in annex VII to the session report. The secretariat was requested to submit the proposals – as draft Supplement 2 to the 04 series of amendments to UN Regulation No. 94 (ECE/TRANS/WP.29/GRSP/2022/22), draft Supplement 3 to the 05 series of amendments to UN Regulation No. 95 (ECE/TRANS/WP.29/GRSP/2022/23), draft Supplement 3 to the 02 series of amendments to UN Regulation No. 137 (ECE/TRANS/WP.29/GRSP/2022/24), and draft Supplement 1 to the 02 series of amendment to UN Regulation No. 135 (GRSP-72-46) – to the June 2023 sessions of WP.29 and AC.1.

171. Submitted for consideration and vote, the proposal for Amendment 1 to UN GTR No. 13 (Hydrogen and Fuel Cell Vehicles) (ECE/TRANS/WP.29/2023/81 and ECE/TRANS/WP.29/2023/82) was adopted on 21 June 2023 by consensus vote of the following contracting parties present and voting: Australia, Canada, China, European Union (representing Cyprus, Finland, France, Germany, Hungary, Italy, Lithuania, Luxembourg, Netherlands, Romania, Slovakia, Slovenia, Spain, and Sweden), India, Japan, Kazakhstan, Norway, Republic of Korea, Russian Federation, South Africa, United Kingdom of Great Britain and Northern Ireland and United States of America.

7. The IWG Chair, on behalf of the co-sponsors (Japan, Republic of Korea, United States of America and European Commission) informed GRSP about an overview of the outcome of work of the Hydrogen and Fuel Cell Vehicles (HFCV) IWG on UN GTR No. 13, Phase 2 (IWG UN GTR13 PH2) by referring to GRSP-72-21. Finally, he introduced the proposal of amendments (ECE/TRANS/WP.29/GRSP/2022/16) and the final report of the IWG (ECE/TRANS/WP.29/GRSP/2022/17).

8. GRSP recommended the proposal of amendment to UN GTR No. 13 (ECE/TRANS/WP.29/GRSP/2022/16) and the final report (ECE/TRANS/WP.29/GRSP/2022/17), of the IWG GTR13 PH2, as amended by annex II to the session report. The secretariat was requested to submit the proposal and the final report as draft Amendment 1 to UN GTR No. 13 for consideration and vote to AC.3 at its June 2023 session.

7. The IWG Chair, on behalf of the co-sponsors (Japan, Republic of Korea, United States of America and European Commission) informed GRSP about an overview of the outcome of work of the Hydrogen and Fuel Cell Vehicles (HFCV) IWG on UN GTR No. 13, Phase 2 (IWG UN GTR13 PH2) by referring to GRSP-72-21. Finally, he introduced the proposal of amendments (ECE/TRANS/WP.29/GRSP/2022/16) and the final report of the IWG (ECE/TRANS/WP.29/GRSP/2022/17).

8. GRSP recommended the proposal of amendment to UN GTR No. 13 (ECE/TRANS/WP.29/GRSP/2022/16) and the final report (ECE/TRANS/WP.29/GRSP/2022/17), of the IWG GTR13 PH2, as amended by annex II to the session report. The secretariat was requested to submit the proposal and the final report as draft Amendment 1 to UN GTR No. 13 for consideration and vote to AC.3 at its June 2023 session.

21. GRSP resumed discussion on two revised proposals tabled by the expert from Germany. He introduced ECE/TRANS/WP.29/GRSP/2023/4 to ensure that only safe head restraints would be fitted on seats in any seating position in all vehicle categories. Then he introduced ECE/TRANS/WP.29/GRSP/2023/5 that covers the same provisions of ECE/TRANS/WP.29/GRSP/2023/4 with additional new requirements in a new series of amendments. GRSP adopted ECE/TRANS/WP.29/GRSP/2023/4 not amended, and ECE/TRANS/WP.29/GRSP/2023/5 as amended by annex IV to the session report. The secretariat was requested to submit the proposals for consideration and vote at the November 2023 sessions of WP.29 and AC.1. as: (a) draft Supplement 1 to the 10 series of amendments (ECE/TRANS/WP.29/GRSP/2023/4) and (b) draft 11 Series of Amendments (ECE/TRANS/WP.29/GRSP/2023/5) to UN Regulation No. 17.

21. GRSP resumed discussion on two revised proposals tabled by the expert from Germany. He introduced ECE/TRANS/WP.29/GRSP/2023/4 to ensure that only safe head restraints would be fitted on seats in any seating position in all vehicle categories. Then he introduced ECE/TRANS/WP.29/GRSP/2023/5 that covers the same provisions of ECE/TRANS/WP.29/GRSP/2023/4 with additional new requirements in a new series of amendments. GRSP adopted ECE/TRANS/WP.29/GRSP/2023/4 not amended, and ECE/TRANS/WP.29/GRSP/2023/5 as amended by annex IV to the session report. The secretariat was requested to submit the proposals for consideration and vote at the November 2023 sessions of WP.29 and AC.1. as: (a) draft Supplement 1 to the 10 series of amendments (ECE/TRANS/WP.29/GRSP/2023/4) and (b) draft 11 Series of Amendments (ECE/TRANS/WP.29/GRSP/2023/5) to UN Regulation No. 17.

25. The experts from France introduced ECE/TRANS/WP.29/GRSP/2022/18
and ECE/TRANS/WP.29/GRSP/2022/19, on behalf of the ad hoc group to develop an amendment that clarifies the definitions of the cowl monitoring and windscreen areas, as well as of the jerk area. The expert from the Netherlands recommended that a specific symbol in the type-approval marking should be added for vehicles approved using the specific provisions related to bonnet rear reference line. Accordingly, the experts from France and OICA introduced GRSP-72-41 and GRSP-72-44 amending respectively ECE/TRANS/WP.29/GRSP/2022/18 and ECE/TRANS/WP.29/GRSP/2022/19.

26. GRSP adopted ECE/TRANS/WP.29/GRSP/2022/18 and ECE/TRANS/WP.29/GRSP/2022/19, both as amended by annex IV of the session report. The secretariat was requested to submit the proposals as Supplement 2 to the 03 Series of Amendments (ECE/TRANS/WP.29/GRSP/2022/18) and as Supplement 1 to the 04 Series of Amendments (ECE/TRANS/WP.29/GRSP/2022/19) to UN Regulation No. 127 (Pedestrian safety) to the June 2023 sessions of WP.29 and AC.1.

25. The experts from France introduced ECE/TRANS/WP.29/GRSP/2022/18
and ECE/TRANS/WP.29/GRSP/2022/19, on behalf of the ad hoc group to develop an amendment that clarifies the definitions of the cowl monitoring and windscreen areas, as well as of the jerk area. The expert from the Netherlands recommended that a specific symbol in the type-approval marking should be added for vehicles approved using the specific provisions related to bonnet rear reference line. Accordingly, the experts from France and OICA introduced GRSP-72-41 and GRSP-72-44 amending respectively ECE/TRANS/WP.29/GRSP/2022/18 and ECE/TRANS/WP.29/GRSP/2022/19.

26. GRSP adopted ECE/TRANS/WP.29/GRSP/2022/18 and ECE/TRANS/WP.29/GRSP/2022/19, both as amended by annex IV of the session report. The secretariat was requested to submit the proposals as Supplement 2 to the 03 Series of Amendments (ECE/TRANS/WP.29/GRSP/2022/18) and as Supplement 1 to the 04 Series of Amendments (ECE/TRANS/WP.29/GRSP/2022/19) to UN Regulation No. 127 (Pedestrian safety) to the June 2023 sessions of WP.29 and AC.1.

27. The expert from Spain introduced GRSP-72-01, on behalf of the Technical Service Group, aiming to clarify the approach of the production qualification testing phase. At the same time, the expert from CLEPA introduced GRSP-72-16 to update the references to EN Standards for toxicity and flammability. GRSP adopted GRSP-72-01 and GRSP-72-16 as reproduced in annex V to the session report. The secretariat was requested to submit both proposals as draft Supplement 9 to the 03 series of amendments to UN Regulation No. 129 on ECRS for consideration and vote at the June 2023 sessions of WP.29 and AC.1. It was also agreed that if further discussion was needed, the official document to the June 2023 session would be re-discussed at the May 2023 session of GRSP.

35. GRSP considered ECE/TRANS/WP.29/GRSP/2023/14 on prevention of green indicators suggesting a belt route outside the remit of the type-approval. GRSP adopted ECE/TRANS/WP.29/GRSP/2023/14, as amended below, and requested the secretariat to submit the proposal as part of (paragraphs 33 and 34 above) draft Supplement 10 to the 03 series of amendments and to include it into (paragraphs 33 and 34) the draft 04 Series of Amendments to UN Regulation No. 129 for consideration and vote at the November 2023 sessions of WP.29 and AC.1.

The title, amend to read:
“Proposal for Supplement 10 to 03 Series of Amendments and 04 Series of Amendments to UN Regulation No. 129 (Enhanced Child Restraint Systems)” **

** Note by the secretariat: The change of the title was agreed with the author of the proposal to include the text of the draft Supplement 10 to the 03 Series of Amendments into the draft 04 Series of Amendments to UN Regulation No. 129.

5. The expert from the Republic of Korea introduced GRSP-71-26, which is the progress report of IWG-Deployable Pedestrian Protection Systems (DPPS). He confirmed that the Phase 1 IWG would include: (a) detection area definition, (b) rationales and justifications for this phase to be included in the preamble, (c) deployed position and test method, (d) optional dynamic test, (e) numerical simulation for Head Impact Time (HIT) against Wrap Around Distance (WAD) information, (f) linear regression/optional linear regression, (g) head test area marking with un-deployed or with DPPS and original equipment manufacturers choice. He also added that a clear position from all contracting parties would be required as soon as possible. Moreover, he introduced the proposal of amendments (ECE/TRANS/WP.29/GRSP/2022/2) and he suggested an extension of the IWG mandate for one year to complete the planned work. Finally, he informed GRSP that the final report of IWG would be submitted to the December 2022 session of GRSP.

6. GRSP agreed to seek endorsement from WP.29 at its June 2022 session to extend the mandate of the UN GTR 9, IWG DPPS until November 2023.

27. The expert from Spain introduced GRSP-72-01, on behalf of the Technical Service Group, aiming to clarify the approach of the production qualification testing phase. At the same time, the expert from CLEPA introduced GRSP-72-16 to update the references to EN Standards for toxicity and flammability. GRSP adopted GRSP-72-01 and GRSP-72-16 as reproduced in annex V to the session report. The secretariat was requested to submit both proposals as draft Supplement 9 to the 03 series of amendments to UN Regulation No. 129 on ECRS for consideration and vote at the June 2023 sessions of WP.29 and AC.1. It was also agreed that if further discussion was needed, the official document to the June 2023 session would be re-discussed at the May 2023 session of GRSP.

37. The Secretary of the Task Force to transpose Amendment 1 of UN GTR No. 13 into UN Regulation No. 134 introduced GRSP-73-54, amending ECE/TRANS/WP.29/GRSP/2023/8: both were adopted by GRSP. The secretariat was requested to submit the proposal as draft 02 series of amendments to UN Regulation No. 134 for consideration and vote to the November 2023 sessions of WP.29 and AC.1.

24. GRSP resumed discussion on a proposal of amendment to UN Regulation No. 100, tabled by the expert from CLCCR that would introduce provisions for a type of electric axle in a trailer (ECE/TRANS/WP.29/GRSP/2022/14 and GRSP-72-18 amending it). The expert from France presented GRSP-72-27, introducing some comments and amendments to the proposal. GRSP agreed to resume discussion on a revised proposal introducing provisions for a type of electric axle tabled by the expert from CLCCR in cooperation with the expert from France at its May 2023 session.

16. The expert from the Netherlands presented the status report of the Ad Hoc Group on CRS (GRSP-73-15) as an introduction to GRSP-73-16-Rev.2 (superseding ECE/TRANS/WP.29/GRSP/2023/9), which allows the use of Lower Tether Anchorages (LTA) as anti-rotation devices. He added that the proposal would not mandate the use of LTA, but would ensure that use be unambiguous, and that users be informed correctly. He also explained that the proposal would be accompanied by parallel proposals to UN Regulations Nos. 129 and 145. The expert from OICA introduced GRSP-73-24 to provide consistency on transitional provisions with other proposals of amendments to the UN Regulation. GRSP adopted ECE/TRANS/WP.29/GRSP/2023/9, as amended by annex III to the session report. GRSP requested the secretariat to submit the proposal as the draft 09 Series of Amendments to UN Regulation No. 16 for consideration and vote at the November 2023 sessions of WP.29 and AC.1.

19. The expert from the Republic of Korea introduced the status report (GRSP-73-43) of the Ad Hoc Group on Safety-Belt Reminders (SBR). He informed GRSP that the Group agreed to clarify and resolve three SBR issues introduced at the seventy-second session of GRSP (GRSP-72-13). He concluded that the Group planned to convene virtually at the end of May to seek basis for a proposal for discussion at the December 2023 session of GRSP. The expert from France introduced ECE/TRANS/WP.29/GRSP/2023/17, to clarify: (a) how to assess SBR connection in the case of removable seats and (b) test procedure of SBR. The expert from OICA reiterated that GRSP-73-24 also amends ECE/TRANS/WP.29/GRSP/2023/17. GRSP adopted ECE/TRANS/WP.29/GRSP/2023/17 as amended by annex III to the session report. GRSP requested the secretariat to submit the proposal as part of the draft 09 Series of Amendments (paragraphs 17 to 19) to UN Regulation No. 16 for consideration and vote at the November 2023 sessions of WP.29 and AC.1.

16. GRSP resumed discussion on a proposal (ECE/TRANS/WP.29/GRSP/2022/13) tabled by the expert from France on clarifying the assessment of the connection of the Safety-Belt Reminder (SBR) system in the case of removable seats. GRSP also noted a presentation (GRSP-72-23) to introduce a proposal for a new series of amendments (GRSP-72-22). The expert from France explained that the proposal would clarify the requirements for SBR systems on test procedure (first- and second-level warning), visual warning and requirements for SBR in the rear seat row(s).

17. GRSP agreed to resume discussion at its May 2023 session on a revised document combining GRSP-72-22 and ECE/TRANS/WP.29/GRSP/2022/13, as a new series of amendments. GRSP requested its experts to provide feedback on GRSP-72-22 and ECE/TRANS/WP.29/GRSP/2022/13 to the expert from France before the deadline for submission of official documents for the May 2023 session.

16. GRSP resumed discussion on a proposal (ECE/TRANS/WP.29/GRSP/2022/13) tabled by the expert from France on clarifying the assessment of the connection of the Safety-Belt Reminder (SBR) system in the case of removable seats. GRSP also noted a presentation (GRSP-72-23) to introduce a proposal for a new series of amendments (GRSP-72-22). The expert from France explained that the proposal would clarify the requirements for SBR systems on test procedure (first- and second-level warning), visual warning and requirements for SBR in the rear seat row(s).

17. GRSP agreed to resume discussion at its May 2023 session on a revised document combining GRSP-72-22 and ECE/TRANS/WP.29/GRSP/2022/13, as a new series of amendments. GRSP requested its experts to provide feedback on GRSP-72-22 and ECE/TRANS/WP.29/GRSP/2022/13 to the expert from France before the deadline for submission of official documents for the May 2023 session.

20. GRSP discussed a proposal of amendment to UN Regulation No. 100, tabled by the expert from CLCCR that would introduce provisions for a type of electric axle in a trailer (GRSP-71-06). Following a study reservation from a number of experts, GRSP agreed to resume discussion on GRSP-71-06 at its December 2022 session and requested the secretariat to distribute the proposal with an official symbol at that session.

25. As per paragraph 23, the expert from the OICA introduced GRSP-73-35-Rev.1 (superseding ECE/TRANS/WP.29/GRSP/2023/18) to incorporate provisions on hydrogen-fuelled vehicles into UN Regulation No. 95. GRSP adopted ECE/TRANS/WP.29/GRSP/2023/18 as amended by annex VI to the session report. The secretariat was requested to submit the proposal as the draft 06 Series of Amendments to UN Regulation No. 95 for consideration and vote at the November 2023 sessions of WP.29 and AC.1.

38. As per paragraphs 23 and 25, GRSP resumed discussion on two revised proposals (ECE/TRANS/WP.29/GRSP/2023/19, amended by GRSP-73-33 and ECE/TRANS/WP.29/GRSP/2023/24, amended by GRSP-73-32) tabled by the expert from OICA to harmonize already existing provisions on hydrogen-fuelled vehicles in UN Regulation No. 135. GRSP adopted:

1. ECE/TRANS/WP.29/GRSP/2023/24 amended by annex IX to the session report, as draft Supplement 3 to the Original Version and as draft Supplement 4 to the 01 Series of Amendments to UN Regulation No. 135;
2. ECE/TRANS/WP.29/GRSP/2023/19 amended by annex IX, as draft Supplement 2 to the 02 Series of Amendments to UN Regulation No. 135.

44. As per paragraphs 23, 25, 38 and 40, the expert from OICA introduced GRSP-73-31 (superseding ECE/TRANS/WP.29/GRSP/2023/21) to incorporate provisions on hydrogen-fuelled vehicles into UN Regulation No. 153. GRSP adopted ECE/TRANS/WP.29/GRSP/2023/21 as amended by annex XII to the session report. The secretariat was requested to submit the proposal as draft Supplement 4 to the Original Version of UN Regulation No. 153, for consideration and vote at the November 2023 sessions of WP.29 and AC.1.

42. The expert from the Netherlands introduced a presentation (GRSP-71-08) on the background history of the work on harmonizing the three-dimensional H-point machine (3D H-point machine) that had ended. He urged that the work resume as soon as possible since the setting of the H-point stature was unclear and not consistent. He explained that Technical Services and laboratories accredited to ISO 17025, had met problems accrediting their test procedures, since the 3D H-point machines available on the market do not meet or cannot be calibrated according to the old specifications. GRSP agreed to restart the discussion on the lack of harmonization of the 3D H-point machine so as to reach a common understanding and solutions with the support of GRSP.

23. GRSP resumed discussion on a revised proposal tabled by the expert from OICA to incorporate provisions on hydrogen-fuelled vehicles into UN Regulation No. 94, to harmonize UN Regulation No. 94 with UN GTR No. 13, Amendment 1 (GRSP-73-34 superseding ECE/TRANS/WP.29/GRSP/2023/22). GRSP adopted ECE/TRANS/WP.29/GRSP/2023/22 as amended by annex V to the session report. The secretariat was requested to submit the proposal as the draft 05 Series of Amendments to UN Regulation No. 94 for consideration and vote at the November 2023 sessions of WP.29 and AC.1.