Revision 2 has been prepared purely as documentation tool. The authentic and legally binding texts are . This document incorporates the following changes:

Revision 2 | Amendment 1 has been prepared purely as documentation tool. The authentic and legally binding texts are . This document incorporates the following change:

Revision 2 | Amendment 2 has been prepared purely as documentation tool. The authentic and legally binding texts are . This document incorporates the following change:

Revision 2 | Amendment 3 has been prepared purely as documentation tool. The authentic and legally binding texts are . This document incorporates the following change:

Revision 3 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2013/55. This document incorporates the following changes:

Based upon a proposal from the ETRTO and the UK, this text was adopted by the Working Party on Noise (GRB) at its 57th session to update noise test-track requirements from ISO 19844:1994 to ISO 10844:2011 and incorporate transitional provisions to allow repaving of existing, non-compliant test tracks with the ISO 10844:2011 standards.

Revision 3 | Amendment 1 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2013/59. This document incorporates the following change:

Text as adopted by the Working Party on Brakes and Running Gear (GRRF) at its 74th session based upon a European Tyre and Rim Technical Organisation (ETRTO) proposal to amend the snow test method for C3 tyres in order to prescribe the wider of the possible speed ranges (document GRRF/2012/19). Please note that this proposal was adopted at the November 2013 (161st) WP.29 session as Supplement 5, having originally been proposed as Supplement 4 during the June session.

Revision 3 | Amendment 2 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29-162-05. This document incorporates the following change:

Submission of the wet grip limit values for Class C3 tires as agreed to within the Working Party on Brakes and Running Gear (GRRF). These values were originally proposed in document WP.29/2013/66.

Revision 3 | Amendment 3 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2015/5. This document incorporates the following change:

Proposal as approved by the GRB to introduce a “Deceleration Calculator” (dω/dt) for use in the UN R117 test procedures. This procedure was developed by Russia and validated by an ad hoc group (including NAMI, UTAC, and ETRTO). This proposal also includes clarifications concerning snow tire markings approved by the GRRF during its 78th session.

Revision 3 | Amendment 4 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2015/65. This document incorporates the following change:

Proposal for a new time measurement accuracy for instrumentation involved in the rolling resistance method (Annex 6 of the UN Regulation) and to restore transitional provisions incorrectly deleted by Supplement 6 to the 02 series of amendments. The proposal also updates the test-track references to the recently published ISO 10844:2014.

Revision 3 | Corrigendum 1 has been prepared purely as documentation tool. The authentic and legally binding texts are . This document incorporates the following change:

Revision 3 | Corrigendum 2 has been prepared purely as documentation tool. The authentic and legally binding texts are . This document incorporates the following change:

Revision 4 has been prepared purely as documentation tool. The authentic and legally binding texts are WP.29/2015/65, WP.29/2015/5, WP.29-162-05, and WP.29/2013/59. This document incorporates the following changes:

Text as adopted by the Working Party on Brakes and Running Gear (GRRF) at its 74th session based upon a European Tyre and Rim Technical Organisation (ETRTO) proposal to amend the snow test method for C3 tyres in order to prescribe the wider of the possible speed ranges (document GRRF/2012/19). Please note that this proposal was adopted at the November 2013 (161st) WP.29 session as Supplement 5, having originally been proposed as Supplement 4 during the June session.

Submission of the wet grip limit values for Class C3 tires as agreed to within the Working Party on Brakes and Running Gear (GRRF). These values were originally proposed in document WP.29/2013/66.

Proposal as approved by the GRB to introduce a “Deceleration Calculator” (dω/dt) for use in the UN R117 test procedures. This procedure was developed by Russia and validated by an ad hoc group (including NAMI, UTAC, and ETRTO). This proposal also includes clarifications concerning snow tire markings approved by the GRRF during its 78th session.

Proposal for a new time measurement accuracy for instrumentation involved in the rolling resistance method (Annex 6 of the UN Regulation) and to restore transitional provisions incorrectly deleted by Supplement 6 to the 02 series of amendments. The proposal also updates the test-track references to the recently published ISO 10844:2014.

Revision 4 | Amendment 1 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2016/60. This document incorporates the following change:

Proposal to:
a) Align definitions and content with the other tyre regulations (UN Regulations Nos. 30, 54, 75 etc.);
b) Include a definition of “manufacturer” extracted from the resolution “R.E.3”;
c) Adopt a common definition and use of the terms “Manufacturer’s name”, “Brand name”, “Trademark”, “Trade description” and “Commercial name” and their links; and
d) Add information in the certificate to enable approval authorities to more easily understand the products the certificate addresses.

Revision 4 | Amendment 2 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2019/54. This document incorporates the following change:

Proposal to

1. correct a type in Annex 7- Appendix 2, Part 2, Paragraph 5 where the snow group index should read “1.00”, not “100” as appeared erroneously in the adopted text
2. correct the text where the word “tyres” was inadvertently omitted from Paragraph 2.1.
3. align the provisions of UN R117 regarding approval numbers and markings with the provisions of Schedule 4 to the revised 1958 Agreement.

Revision 4 | Amendment 3 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2020/6. This document incorporates the following change:

Proposal for an amendment to complement the content of working document GRVA/2018/5. The proposal includes amendments to:

1. The Standard Reference Test Tyre (SRTT) denominations
2. Remove the discrimination between the two Class C3 tyres
3. Clarify that there are no C3 tyres in the scope of this UN Regulation “not marked with speed symbol”
4. Align Annex 6 with the most recent amendments made to standard ISO 28580
5. Define “standard deviation” as appropriate in the text
6. Clarify that, in the cases of C2 and C3 tyres, the “Reference (test) pressure” and the value “Pr” correspond to the indication of the inflation pressure which is always marked on the sidewall
7. Use “repeatable” instead of references to “reproducibility”
8. Update test report forms
9. Include the date on which the new proposed supplement of UN Regulation No. 117 will apply
10. Improve the description of the evaluation of the rolling sound emission test
Correct the figure in Annex 2, Appendix 2, and
11. Update cross references pursuant to paragraph renumbering.

Revision 4 | Amendment 4 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2020/75. This document incorporates the following change:

Proposal to adapt the rolling-sound measurement procedures to accommodate special C2 tyres presenting a section width wider than 200 mm, aspect ratio lower than 55, rim diameter code lower than 15 and without any dual fitting indication (i.e. the front size 175/75R15 LT and the rear size 235/50R14 LT or the front size 175/75R15 LT and the rear size 265/50R14 LT).

Revision 4 | Amendment 5 has been prepared purely as documentation tool. The authentic and legally binding texts are WP.29/2021/8 and WP.29-183-06. This document incorporates the following change:

1. Improve the reproducibility of the test method (in alignment with ISO 23671)
2. Include maximum load and pressure information per ASTM F2493-19
3. Update the test report templates accordingly
4. Remove the limitation for “moulded” markings
5. Transition from SRTT14 to SRTT16
6. Align track friction requirements for track characterization per the transition
7. Clarify vehicle selection provisions
8. Introduce transitional provisions

Proposal to replace “markings” by “approval mark” in paragraph 4.4.1. to clearly specify the intended application of the provision (i.e., to the approval mark, not to all markings).

Revision 4 | Amendment 6 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2022/8. This document incorporates the following change:

Proposal to introduce provisions for ice grip tyres, clarify provisions on Conformity of Production, sample submissions, and testing methods, and to make editorial corrections and improvements.