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Informal Working Group on Worn Tyres (WT)

This page provides access to the documents and meetings of the Worn Tyres informal group.
No new meetings have been scheduled as of today.

This group was authorized in 2019 to consider the performance of tyres after initial use. The broad concern is to ensure that somewhat worn tyres provide continue to comply with the requirements for new tyre approvals (i.e., no serious degradation in performance after initial use and before such wear as would require tyre replacement).


More information can be found in the note with regard to worn tyre wet grip from the Russian Federation.


Click here for more information about the Informal Working Group on Worn Tyres.
WT-09-11 13 March 13 Mar 2020 2020-03-13 19:09:10 UTC
WT-09-14 9 March 9 Mar 2020 2020-03-09 16:47:59 UTC
WT-09-13 9 March 9 Mar 2020 2020-03-09 16:45:14 UTC
WT-09-12 9 March 9 Mar 2020 2020-03-09 16:39:07 UTC
WT-09-10 9 March 9 Mar 2020 2020-03-09 16:38:07 UTC
WT-09-09 9 March 9 Mar 2020 2020-03-09 16:35:51 UTC
WT-09-07/Rev.1 9 March 9 Mar 2020 2020-03-06 11:19:35 UTC
WT-09-06/Rev.1 9 March 9 Mar 2020 2020-02-28 16:02:59 UTC
WT-09-05/Rev.2 9 March 9 Mar 2020 2020-02-28 16:01:51 UTC
WT-09-04/Rev.2 9 March 9 Mar 2020 2020-02-19 14:05:46 UTC
WT-09-08 6 March 6 Mar 2020 2020-03-06 11:16:37 UTC
WT-09-03/Rev.2 6 March 6 Mar 2020 2020-02-19 14:01:56 UTC
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Access all 71 WT documents in the GAR database.
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