Japan Automobile Tyre Manufacturers Association
14 Sep 2011 Proposal for amendments to UNR30 : markings for “temporary uses spare tyres” (ETRTO and JATMA) GRRF-71-28 2011-09-14
12 Sep 2012 Proposal for amendments to document GRRF/2012/22 (ETRTO, JATMA, and USTMA) GRRF-73-12 2012-09-12
9 Dec 2011 Proposal for Supplement 17 to the 02 series of amendments to Regulation No. 30 (ETRTO and JATMA) GRRF/2012/4 2011-12-09
9 Dec 2022 Tyre abrasion: Tyre selection for Correlation Test Plan (ETRTO and JATMA) TA-07-06 2022-12-09
28 Jun 2024 Tyre abrasion: 2024 ETRTO, JASIC, USTMA Vehicle and drum Correlation and Validation plan (ETRTO, JASIC, and JATMA) TA-25-04 2024-06-28
2 Feb Tyre abrasion: Comments on the draft Annex 4 (Equivalence method) (JATMA) TA-43-08 2026-02-02
12 Jan 2011 Draft gtr text for harmonized PC tyre requirements (ETRTO, USTMA, and JATMA) TYREGTR-10-02 2011-01-12
22 Jun 2011 Harmonized provisions concerning pneumatic tyres for passenger and light truck (commercial) vehicles (ETRTO, JATMA, and USTMA) TYREGTR-11-02 2011-06-22
19 Apr 2012 Counter Proposal and Rationale Regarding font for Tyre Identification (USTMA, JATMA, and ETRTO) TYREGTR-12-07 2012-04-19
28 Jun 2012 New modifications to the draft GTR on tires (ETRTO, JATMA, and USTMA) TYREGTR-13-05 2012-06-28
1 Nov 2017 Tyre GTR: Review of China informal document GRRF-84-12 (ETRTO, JATMA, and USTMA) TYREGTR-17-10 2017-11-01
9 Jun 2018 GTR 16: Inflation Pressure Markings (ETRTO, JATMA, and USTMA) TYREGTR-18-10 2018-06-09
11 Jun 2018 GTR 16: Tyre marking provisions (ETRTO, JATMA, USTMA) (ETRTO, JATMA, and USTMA) TYREGTR-18-17 2018-06-11
23 Nov 2020 Worn tyres: Proposals for sharing of the buffing reports (JATMA) WT-16-04 2020-11-23
5 Jan 2021 Surface roughness studies on buffed tires: Lateral Scanning vs Circumferential Scanning (JATMA) WT-17-03 2021-01-05