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UN Regulation No. 138
Quiet Road Transport Vehicles
Revisions, Amendments, and Corrigenda

Please note that these texts are prepared by the WP.29 secretariat for convenience. The legal texts remain the original documents as submitted to the World Forum session, including any last-minute changes recorded in World Forum session reports.
UN R138 (2016)
24 Oct 2016 2016-11-15 19:29:30 UTC
UN R138 | Amendment 1 (2017)
11 Dec 2017 2017-12-14 12:21:47 UTC 1
UN R138 | Amendment 2 (2017)
11 Dec 2017 2017-12-14 12:27:07 UTC 2
UN R138 | Revision 1 (2018)
22 Jan 2018 2018-01-23 11:39:00 UTC 1
UN R138 | Revision 1 | Amendment 1 (2020)
29 Jan 2020 2020-02-18 14:18:02 UTC 1 1
Earlier texts may be available through the UN Official Document System.