Japan Automobile Standards Internationalization Center
24 Aug 2015 The trend of noise regulation in Japan (JASIC and MLIT) GRB-62-13/Rev.1 2015-08-24 Presentation of Japan's plans for phasing in UN R41, UN R51 (Phase 2, but not Phase 3 limits), and UN R117 requirements. JASIC MLIT
23 Jan 2024 UN R117: Consideration of tyre abrasion formal working document (JASIC) TA-20-07 2024-01-23 JASIC
24 Jan 2024 Tyre abrasion: Indoor drum test method-status of drafting group discussions (JASIC) TA-20-11 2024-01-24 JASIC
4 Feb 2020 Proposal on winter tyres buff profile (JASIC) WT-08-03 2020-02-04 JASIC
4 Feb 2020 Worn tyres: Proposals on Trailer Method test campaign (JASIC) WT-08-05 2020-02-04 JASIC
6 Mar 2020 Reference Tyre and Wet Grip Index calculation: Trailer Method test campaign (JASIC) WT-09-08 2020-03-06 JASIC
9 Apr 2020 Worn tyres: Example of individual test report (JASIC) WT-10-02 2020-04-09 JASIC
9 Apr 2020 Worn tyres: Example of aggregated test report (JASIC) WT-10-03 2020-04-09 JASIC
27 Apr 2020 Worn tyres test program: Impact of COVID-19 for tyre logistics in Japan (JASIC) WT-10-05 2020-04-27 JASIC
23 Mar 2021 Effect of Tyre Mean Texture Depth on µ peak and Average Deceleration (JASIC) WT-17-05/Rev.1 2021-03-23 JASIC
21 Jun 2021 UN R117: Comments on the draft provisions for worn tyres (ETRTO and JASIC) WT-23-03 2021-06-21 ETRTO JASIC
24 Aug 2021 Water depth vs SRTT Average μpeak (JASIC) WT-24-06/Rev.1 2021-08-24 JASIC
30 Nov 2021 Worn tyres: Additional test campaign and necessary quantity of "molded SRTT worn" (JASIC) WT-30-04 2021-11-30 JASIC
3 Dec 2021 Proposal for additional Worn Tyres group test campaign (JASIC) WT-30-06 2021-12-03 JASIC
21 Dec 2021 Worn tyres: Proposal for additional text campaign for minimum assessment (JASIC) WT-31-03 2021-12-21 JASIC
12 Jan 2022 Worn Tyres: JASIC Review on ETRTO Proposed Equations (JASIC) WT-32-03 2022-01-12 JASIC
19 Jan 2022 Worn tyres: Comments on threshold proposal and timeline for additional assessment (JASIC) WT-33-04 2022-01-19 JASIC
4 Feb 2022 Position on worn tyre track friction properties (JASIC) WT-35-05 2022-02-04 JASIC
4 Mar 2022 Worn tyres: Evaluation of Molded SRTT-worn (JASIC) WT-36-03 2022-03-04 JASIC
18 Apr 2022 Japan comments on worn tyre cluster definitions (JASIC) WT-37-02 2022-04-18 JASIC
12 Jul 2022 Worn tyres: Proposal for 2023 additional test campaign matrix (JASIC) WT-44-01 2022-07-12 JASIC
27 Jul 2022 Worn tyres: Proposal for additional test campaign (JASIC) WT-44-07 2022-07-27 JASIC
13 Sep 2022 Worn tyre wet test precision improvement test plan proposal (JASIC) WT-45-03 2022-09-13 JASIC
13 Oct 2022 Worn tyre wet test precision improvement: test plan proposal (JASIC) WT-46-02 2022-10-13 JASIC
13 Oct 2022 Worn tyres: 2023 test campaign-report on JASIC/JATMA-ETRTO meetings (JASIC) WT-46-03 2022-10-13 Report on discussions to reconcile proposals for a test campaign towards improving the wet grip test precision. JASIC
27 Feb 2023 Worn tyres: Water-depth measurement test plan (JASIC) WDM-2-02 2023-02-27 JASIC
13 Apr 2023 External self-watering water depth comparison test procedure proposal (JASIC) WT-50-02 2023-04-13 JASIC
27 Mar 2023 Reply to ETRTO comments and questions on JASIC document WT-51-02 (JASIC) WDM-3-05/Rev.1 2023-03-27 JASIC
6 Dec 2023 Worn tyres: Opinion on 2024-2025 test campaign (JASIC) WT-53-07 2023-12-06 JASIC
12 Mar 2024 Worn tyres: Proposal for 2024-2025 test campaign (JASIC) WT-56-02 2024-03-12 JASIC
12 Mar 2024 Worn tyres: New and worn state test campaign result (JASIC) WT-56-03 2024-03-12 JASIC
25 May 2024 Preliminary study on C2 worn tyre wet performance (JASIC) WT-58-07 2024-05-25 JASIC
9 Jul 2024 Revised proposal for worn tyre wet test precision improvement (2024-25 Test campaign) in response to chairs' proposal (JASIC) WT-60-06 2024-07-09 JASIC
2 Sep 2024 Response to proposal for 2024-25 wet grip on worn tyres test campaign precision improvement (JASIC) WT-62-03 2024-09-02 JASIC
8 Sep 2024 Wet grip on worn tyres: Synthesis of JASIC-ETRTO meeting (ETRTO and JASIC) WT-62-06 2024-09-08 ETRTO JASIC
24 Sep 2024 Questions and comments on proposed WGWT work plan (JASIC) WT-62-08 2024-09-24 JASIC
19 Nov 2024 Wet Grip Worn Tyres: Test tyre allocation plan for the Stage 1 evaluation (ETRTO and JASIC) WT-63-02 2024-11-19 ETRTO JASIC
16 Dec 2024 Wet Grip on Worn Tyres: Revised test plan (JASIC) WT-64-02 2024-12-16 JASIC
25 Aug 2025 Wet Grip on Worn Tyres: Proposal to amend the informal group terms of reference (JASIC) WT-69-03 2025-08-25 JASIC