Uniform Provisions Concerning the Approval for the Production of Retreaded Pneumatic Tyres for Commercial Vehicles and their Trailers

Related groups: GRB, GRBP, and GRRF
UN R109 | Revision 1 (2010)
3 Jun 2010 2011-02-03 17:19:11 UTC 1 00 series of amendments | Corrigendum 1 00 series of amendments | Supplement 1 00 series of amendments | Supplement 1 | Corrigendum 1 00 series of amendments | Supplement 6 00 series of amendments | Supplement 5 00 series of amendments | Supplement 4 00 series of amendments | Supplement 3 00 series of amendments | Supplement 2
UN R109 | Revision 1 | Amendment 1 (2016)
5 Feb 2016 2016-02-11 12:33:45 UTC 1 1 00 series of amendments | Supplement 7 Based upon the adopted proposal: WP.29/2015/67

Proposal to transpose requirements for new snow tyres (under UN R117) into UN R109 in order of avoid the exclusion of retreaded tyres from such applications/markets.

UN R109 | Revision 1 | Amendment 2 (2017)
7 Dec 2017 2018-05-04 11:57:00 UTC 1 2 00 series of amendments | Supplement 8 Based upon the adopted proposal: WP.29/2017/9

Proposal to amend Annex 7 and Annex 10. This proposal would:

  1. change measurement units for drum speed in Annex 7 from min-1 to km.h-1 to align the requirements with other tyre regulations;
  2. correct the wording from “speed category symbol” to “speed symbol” (as defined in para. 2.33);
  3. correct the wording from “load capacity index” to “load index” (as defined in para. 2.32);
  4. correct a reference to para. 3.2.13. of the Regulation in Annex 7, Appendix 1;
  5. correct a boundary value of load index in Annex 7, Appendix 1;
  6. delete in paragraph 2.1 in Annex 7, the possibility to use the 2.0 m drum diameter to perform the endurance test.

In Annex 10, the proposal aligns the text with Annex 7 of UN R117, 02 series of amendments, Supplement 5.

The proposal would also clarify provisions for the minimum heights for markings for tyres with nominal rim diameter codes ≥ 20 and nominal section width ≤ 235 and for tyres with nominal rim diameter codes < 20 and nominal section width > 235. The proposal also corrects tables and figures for the use of lowercase letter to denote tyre dimension specifications.

UN R109 | Revision 1 | Amendment 3 (2019)
16 Jan 2019 2019-01-25 13:04:27 UTC 1 3 00 series of amendments | Supplement 9 Based upon the adopted proposals: WP.29/2018/59

In order to have a Regulation on the retreaded tyres with definitions and provisions structured in the same way of those previously introduced in amendments of “new tyres” Regulations, this amendment:

  1. Indicates that for the purpose of this Regulation “tyres” means “pneumatic tyres”, so all the text has been reviewed
  2. Introduces a definition of :
    • “retreader” copy based on that “manufacturer” in the tyres regulations
    • Brand name", “Trademark”, “Trade description” and “Commercial name” as defined in the tyre regulations
    • Material manufacturer / material supplier
  3. Takes into account the rounding rules (already approved in the other tyre regulations) for the calculation of width and diameter of the tyres
  4. Aligns the title and the provisions of the para. 12 related to the names and addresses of Technical Services, Approved Laboratories and administrative Department with their equivalent in the tyres regulations

WP.29/2018/59/Add.1

Addendum from GRRF to include provisions for PSI or kilopascal (kPa) markings and to clarify inflation pressure under the test procedures in the proposal for Supplement 9.

UN R109 | Revision 1 | Corrigendum 1 (2013)
27 Aug 2013 2013-09-16 17:51:22 UTC 1 1 00 series of amendments | Corrigendum 2
Earlier texts may be available through the UN Official Document System.