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UN R117 | 01 series of amendments | Corrigendum 2
(2008)
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2
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UN R117 | 01 series of amendments | Corrigendum 3
(2009)
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3
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UN R117 | 02 series of amendments | Corrigendum 5
(2014)
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2
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5
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UN R117 | 02 series of amendments | Corrigendum 4
(2014)
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2
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4
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UN R117 | 02 series of amendments
(2011)
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2
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UN R117 | 02 series of amendments | Corrigendum 1
(2011)
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2
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UN R117 | 02 series of amendments | Corrigendum 2
(2011)
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2
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UN R117 | 02 series of amendments | Corrigendum 3
(2011)
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UN R117 | 02 series of amendments | Supplement 1
(2012)
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2
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1
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UN R117 | 02 series of amendments | Supplement 2
(2013)
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2
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2
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UN R117 | 02 series of amendments | Supplement 3
(2013)
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UN R117 | 02 series of amendments | Supplement 4
(2014)
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WP.29/2013/55: 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.
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Discussion from 160th WP.29 session (25-28
Jun 2013)
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67. Agenda item 4.8.1, Regulation No. 117, document ECE/TRANS/WP.29/2013/55, add at the end:
Annex 4, the title, insert the reference to footnote 1 and footnote 1, to read:
“1 The specifications for the test site reproduced in this annex are valid until the end of the period indicated in paragraph 12.9.”
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2
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UN R117 | 02 series of amendments | Supplement 5
(2014)
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WP.29/2013/59: 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.
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Discussion from 160th WP.29 session (25-28
Jun 2013)
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The proposal under agenda item 4.9.4 should be considered at the November 2013 session.
[Proposal adopted.]
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2
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5
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UN R117 | 02 series of amendments | Supplement 6
(2014)
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WP.29-162-05: 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.
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Discussion from 162nd WP.29 session (11-14
Mar 2014)
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55. The World Forum considered the pending proposal for amendments to Regulation No. 117 listed under agenda item 4.12.3 (document ECE/TRANS/WP.29/2013/66) and recommended its submission to AC.1 for voting, subject to the correction of para. 47 below (see WP.29-162-05).
56. Page 1, the title, replace “Supplement 5” by “Supplement 6”. Page 2, paragraph 6.2.3, correct the wet grip index G for normal tyres other than traction tyres to read 0.80.
[The proposal was adopted as amended as “Supplement 6 to the 02 series of amendments to UN Regulation No. 117” by a vote of 36 in favor and none either opposed or abstaining.]
24. Recalling the purpose of ECE/TRANS/WP.29/2013/66, the Chair of GRRF stressed that WP.29 was expecting GRRF to conclude its deliberation about the wet grip limit values. The GRRF experts introduced their positions (GRRF-76-05, GRRF-76-07, GRRF-76-08, GRRF-76-11, GRRF-76-12, GRRF-76-26, GRRF-76-27, GRRF-76-28). The expert from the EC reported on the concerns expressed by the Directorate-General for Mobility and Transport of the European Commission (DG Move). GRRF confirmed the limit values proposed in para. 6.2.2. for Tyres of C2 category and agreed to amend the proposed limit values in para. 6.2.3. for Tyres of C3 category in ECE/TRANS/WP.29/2013/66. GRRF requested the secretariat to submit this amendment as reproduced in WP.29-162-05 to WP.29 and AC.1 for consideration at their March 2014 session.
24bis. The expert from the Russian Federation presented GRB-59-02 proposing a tyre rolling resistance test results evaluation using a mathematical algorithm, to be added as an alternative to the existing one in the text of the Regulation. He also presented the results of a validation study of the proposed algorithm for tyres of the C1 category performed in France, in cooperation with the Russian Federation (GRB-59-07 and GRB-59-08). GRRF noted that this proposal may be submitted by GRB to WP.29 as a supplement to UN Regulation No. 117. GRRF recommended further steps for a better understanding of the proposed method’s sensitivity, suggesting: (i) extending the validation study for tyres of categories C2 and C3 and (ii) verifying the application of the proposed alternative in the conditions of the conformity of production. The GRRF Chair invited the experts to provide their comments on the proposal to the GRB secretariat with a copy to the expert from the Russian Federation.
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2
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6
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UN R117 | 02 series of amendments | Supplement 7
(2015)
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WP.29/2015/5: 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.
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Discussion from 165th WP.29 session (10-13
Mar 2015)
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28. The Secretary presented ECE/TRANS/WP.29/2015/5 based on the proposals adopted by GRRF and the Working Party on Noise (GRB) and containing a correction introduced by the secretariat. GRRF endorsed the correction proposed (see para. 2.16.).
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7
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UN R117 | 02 series of amendments | Supplement 8
(2016)
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WP.29/2015/65: 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.
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Discussion from 166th WP.29 session (23-26
Jun 2015)
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66. Agenda item 4.8.7, Regulation No. 117, ECE/TRANS/WP.29/2015/65, insert the following correction:
Annex 4, the title, footnote 1, shall read: “replace “paragraph 12.9” with “paragraph 12.8””
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2
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8
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UN R117 | 02 series of amendments | Supplement 9
(2017)
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WP.29/2016/60: 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. With 38 of the 49 Contracting Parties applying UN R117 present and voting, AC.1 adopted document WP.29/2016/60 by a vote of 38 in favor, 0 opposed, with 0 abstaining.
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9
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UN R117 | 02 series of amendments | Supplement 10
(2020)
WP.29/2019/54: Proposal to- 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
- correct the text where the word “tyres” was inadvertently omitted from Paragraph 2.1.
- align the provisions of UN R117 regarding approval numbers and markings with the provisions of Schedule 4 to the revised 1958 Agreement.
With 37 of the 52 Contracting Parties applying UN R117 present and voting, AC.1 adopted document WP.29/2019/54 by a vote of 37 in favor, 0 opposed, with 0 abstaining.
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10
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UN R117 | 02 series of amendments | Supplement 11
(2020)
WP.29/2020/6: Proposal for an amendment to complement the content of working document GRVA/2018/5. The proposal includes amendments to:- The Standard Reference Test Tyre (SRTT) denominations
- Remove the discrimination between the two Class C3 tyres
- Clarify that there are no C3 tyres in the scope of this UN Regulation "not marked with speed symbol"
- Align Annex 6 with the most recent amendments made to standard ISO 28580
- Define "standard deviation" as appropriate in the text
- 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
- Use "repeatable" instead of references to "reproducibility"
- Update test report forms
- Include the date on which the new proposed supplement of UN Regulation No. 117 will apply
- Improve the description of the evaluation of the rolling sound emission test
Correct the figure in Annex 2, Appendix 2, and- Update cross references pursuant to paragraph renumbering.
With 38 of the 53 Contracting Parties applying UN R117 present and voting, AC.1 adopted document WP.29/2020/6, as amended by para. 85 per the session report, by a vote of 38 in favor, 0 opposed, with 0 abstaining.
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11
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UN R117 | 02 series of amendments | Supplement 12
(2021)
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WP.29/2020/75: 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). With 41 of the 53 Contracting Parties applying UN R117 present and voting, AC.1 adopted document WP.29/2020/75 by a vote of 41 in favor, 0 opposed, with 0 abstaining.
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12
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UN R117 | 02 series of amendments | Supplement 13
(2021)
WP.29/2021/8: Proposal to - Improve the reproducibility of the test method (in alignment with ISO 23671)
- Include maximum load and pressure information per ASTM F2493-19
- Update the test report templates accordingly
- Remove the limitation for "moulded" markings
- Transition from SRTT14 to SRTT16
- Align track friction requirements for track characterization per the transition
- Clarify vehicle selection provisions
- Introduce transitional provisions
With 37 of the 53 Contracting Parties applying UN R117 present and voting, AC.1 adopted document WP.29/2021/8, as amended by para. 78 of the session report per the session report, by a vote of 37 in favor, 0 opposed, with 0 abstaining.
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Discussion from 183rd WP.29 session (9-11
Mar 2021)
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78. The World Forum considered draft amendments under agenda items 4.6.1 to 4.6.7. and recommended their submission to AC.1 for voting, subject to the following corrections of ECE/TRANS/WP.29/2021/8 under agenda item 4.6.6 (WP.29-183-06):
In paragraph 4.4.1., replace “markings” with “approval mark”.
In paragraph 9.1., delete from the proposal (i.e. keep the paragraph in its current form).
79. The Chair of GRBP presented draft amendment proposals contained in documents ECE/TRANS/WP.29/2021/3, ECE/TRANS/WP.29/2021/10 and Rev.1, ECE/TRANS/WP.29/2021/11 under agenda item 4.6.8 to 4.6.10., to amend UN Regulations Nos. 41, 141 and 142. The World Forum recommended their submission to AC.1 for voting.
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WP.29-183-06: 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).
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Discussion from 183rd WP.29 session (9-11
Mar 2021)
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78. The World Forum considered draft amendments under agenda items 4.6.1 to 4.6.7. and recommended their submission to AC.1 for voting, subject to the following corrections of ECE/TRANS/WP.29/2021/8 under agenda item 4.6.6 (WP.29-183-06):
In paragraph 4.4.1., replace “markings” with “approval mark”.
In paragraph 9.1., delete from the proposal (i.e. keep the paragraph in its current form).
79. The Chair of GRBP presented draft amendment proposals contained in documents ECE/TRANS/WP.29/2021/3, ECE/TRANS/WP.29/2021/10 and Rev.1, ECE/TRANS/WP.29/2021/11 under agenda item 4.6.8 to 4.6.10., to amend UN Regulations Nos. 41, 141 and 142. The World Forum recommended their submission to AC.1 for voting.
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13
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UN R117 | 02 series of amendments | Supplement 14
(2022)
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WP.29/2022/8: 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. With 37 of the 53 Contracting Parties applying UN R117 present and voting, AC.1 adopted document WP.29/2022/8 by a vote of 37 in favor, 0 opposed, with 0 abstaining.
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14
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02 series of amendments
| Supplement 15
(Adopted by WP.29)
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WP.29/2023/5: Proposal to introduce provisions to allow the type approval of special use tyres that fulfil the requirements for snow performance as laid out in Annex 7, to bring the latest ISO 10844 standard test surface into the Regulation, and to make editorial corrections.
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2
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15
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02 series of amendments
| Supplement 16
(WP.29 amended and adopted)
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WP.29/2024/73: Proposal to introduce a new temperature correction formula for the rolling sound emissions of tyres of classes C1 and C2, to remove the content of the now obsolete Annex 4 as well as all its references, to update references to standards, to improve the reproducibility of the snow grip test method by replacing the current reference tyres C3 SRTTs 19.5 and 22.5 with the new reference tyres C3 SRTTs 19.5 and 22.5 siped, and to make editorial improvements for clarity and consistency across tyre regulations.
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16
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02 series of amendments
| Supplement 17
(Formal GR review)
GRBP/2025/12: Proposal to- Update standard reference to ASTM F2493-24 and ISO 4000-1:2024
- Align the definitions of tread groove and principal grooves with proposals for UN R30 and R54
- Simplify the wording of the requirements for professional off-road tyres
- Correct the transitional provision in paragraph 12.23. to specify approvals “first issued after 31 August 2028”.
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17
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03 series of amendments
(Adopted by WP.29)
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WP.29/2022/83: Proposal to introduce a procedure and thresholds on wet grip performance for C1 tyres in worn state.
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Discussion from 187th WP.29 session (20-24
Jun 2022)
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132. The Chair of GRBP presented the draft amendments to UN Regulation No. 117 on wet grip of worn tyres (agenda item 4.9.1). The representative of Japan supported these amendments, pointed out their importance for road safety and called for continuation of the work of GRBP on this matter, in particular improving the test methods.
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3
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03 series of amendments
| Supplement 1
(Adopted by WP.29)
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WP.29/2023/6: Proposal to introduce provisions to allow type approval of special use tyres that fulfil the requirements for snow performance as laid out in Annex 7, to improve precision of the test procedures for measuring the wet adhesion of tyres in a worn state by using a moulded SRTT16 reference tyre (instead of a buffed tyre), to introduce new transitional provisions related to this change, to extend corrections already made to the 02 series to the 03 series and make additional editorial corrections, and to define the range for tyre inflation vis-à-vis rim size to reduce uncertainties in measuring tread depth. The proposal introduces the tyre reference F3611-22 per document GRBP/2023/2 submitted to the January 2023 session of GRBP.
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3
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1
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03 series of amendments
| Supplement 2
(WP.29 amended and adopted)
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WP.29/2024/72: Proposal to improve the reproducibility of the snow grip test method by replacing the current reference tyres C3 SRTTs 19.5 and 22.5 with the new reference tyres C3 SRTTs 19.5 and 22.5 siped, to make editorial improvements and updates to ISO and ASTM standards references, and to align with Supplement 2 to the 04 series of amendments, including a new temperature correction formula for the rolling sound emissions of tyres of classes C1 and C2 and to remove the content of the now obsolete Annex 4 as well as all its references.
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3
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2
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04 series of amendments
(2023)
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WP.29/2023/8: Proposal to revise the limits for rolling resistance and wet grip, to address tyres for vintage vehicles, to revise the definition for special-use C1 tyres, and to set the wet grip index threshold at 0.80 for class C1 tyres with a nominal aspect ratio equal to or less than 40, a section width equal to or higher than 235 mm and suitable for speeds equal to or greater than 300 km/h and for class C1 all terrain and special use tyres. The proposal also introduces the kworn factor in a new para. 3 in Annex 9 to address wet grip of C2 and C3 tyres in a worn state (see GRBP-75-26-Rev.1 for concept), provisions to allow the type approval of special use tyres that fulfil the requirements for snow performance as laid out in Annex 7, and a new definition of traction elements to characterize traction tyres.
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4
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04 series of amendments
| Supplement 1
(2024)
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4
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1
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04 series of amendments
| Supplement 2
(2025)
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WP.29/2024/65: Proposal to introduce measures to reduce variability in noise measurements and new test methods to measure tyre abrasion.
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4
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2
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04 series of amendments
| Supplement 3
(Formal GR review)
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GRBP/2024/23: Proposal from the Wet Grip on Worn Tyres informal group to standardize provisions for the water depth measurement and to reduce the track friction range requirements under the test procedures.
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Discussion from 80th GRBP session (17-20
Sep 2024)
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26. The expert of IWG WGWT proposed improving the precision of the test method for C1 tyres (ECE/TRANS/WP.29/GRBP/2024/23, GRBP-80-11 and GRBP-80-30). GRBP adopted the proposal, as amended by GRBP-80-11 and requested the secretariat to submit them for consideration and vote at the June 2025 sessions of WP.29 and AC.1 as draft Supplement 3 to the 04 series of amendments to UN Regulation No. 117. Should GRBP adopt another draft amendment to the same series of amendments at its session in February 2025, it would be combined with the above proposal.
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GRBP/2024/25: Proposal to clarify that wet adhesion provisions apply to C1, C2, and C3 tyres, correct ISO and internal references, clarify symbols "ARC" and "ARR" relationships to indoor drum test method, and clarify application to M+S marked tyres.
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Discussion from 80th GRBP session (17-20
Sep 2024)
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27. The expert from ETRTO referred to their document with corrections to the 04 series of amendments to UN Regulation No. 117 (ECE/TRANS/WP.29/GRBP/2024/25) and requested to postpone its consideration, due to comments received from the experts of France, Netherlands and United Kingdom. GRBP agreed with this request and encouraged other experts to provide their comments as well.
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GRBP-80-11: Proposal by the IWG WGWT to replace document ECE/TRANS/WP.29/GRBP/2024/23. This proposal aims as a first step to standardize the water depth measurement.
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Discussion from 80th GRBP session (17-20
Sep 2024)
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26. The expert of IWG WGWT proposed improving the precision of the test method for C1 tyres (ECE/TRANS/WP.29/GRBP/2024/23, GRBP-80-11 and GRBP-80-30). GRBP adopted the proposal, as amended by GRBP-80-11 and requested the secretariat to submit them for consideration and vote at the June 2025 sessions of WP.29 and AC.1 as draft Supplement 3 to the 04 series of amendments to UN Regulation No. 117. Should GRBP adopt another draft amendment to the same series of amendments at its session in February 2025, it would be combined with the above proposal.
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GRBP-80-30: Presentation by the IWG WGWT on the proposal to replace document ECE/TRANS/WP.29/GRBP/2024/23 by GRBP-80-11
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Discussion from 80th GRBP session (17-20
Sep 2024)
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26. The expert of IWG WGWT proposed improving the precision of the test method for C1 tyres (ECE/TRANS/WP.29/GRBP/2024/23, GRBP-80-11 and GRBP-80-30). GRBP adopted the proposal, as amended by GRBP-80-11 and requested the secretariat to submit them for consideration and vote at the June 2025 sessions of WP.29 and AC.1 as draft Supplement 3 to the 04 series of amendments to UN Regulation No. 117. Should GRBP adopt another draft amendment to the same series of amendments at its session in February 2025, it would be combined with the above proposal.
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GRBP/2025/13: Proposal to- Clarfy the scope to reflect that adhesion performance on wet surfaces (wet adhesion) is required not only for C1 tyres, but also C2 and C3 tyres
- Update standard reference to ASTM F2493-244, F3611-24, F3676-24, F3675-24 and ISO 4000-1:2024
- Align the definitions of tread groove and principal grooves with proposals for UN R30 and R54
- Simplify the wording of the requirements for professional off-road tyres
- Correct the transitional provision in paragraph 12.23. to specify approvals “first issued after 31 August 2028”.
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4
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3
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