UN Regulation No. 106: Tires for Agricultural Vehicles

Uniform Provisions Concerning the Approval of Pneumatic Tyres for Agricultural Vehicles and their Trailers

Related groups: GRB, GRBP, and GRRF
UN R106 | Revision 1 | Amendment 3 (2013)
14 Feb 2013 2016-07-08 09:27:22 UTC 1 3 00 series of amendments | Supplement 9
UN R106 | Revision 2 (2013)
2 Dec 2013 2013-12-12 16:24:28 UTC 2 00 series of amendments | Supplement 7 00 series of amendments | Supplement 8 00 series of amendments | Supplement 9 00 series of amendments | Supplement 10
UN R106 | Revision 2 | Amendment 1 (2015)
22 Jun 2015 2015-11-06 07:35:15 UTC 2 1 00 series of amendments | Supplement 11 Based upon the adopted proposal: WP.29/2014/50/Rev.1

Proposal to insert a new marking provision and, under “categories of use”, a definition for construction application (Industrial tractor) tyres into UN R106.

UN R106 | Revision 2 | Amendment 2 (2015)
9 Nov 2015 2015-11-26 15:08:57 UTC 2 2 00 series of amendments | Supplement 12 Based upon the adopted proposal: WP.29/2015/10

Text as approved by the GRRF to transfer All Terrain Vehicles (ATV) tires from UN Regulation 106 on agricultural tires to UN Regulation No. 75 on motorcycle tires. (This proposal is associated with the proposal to regulate ATV tires under UN R75. See document WP.29/2015/8.)

UN R106 | Revision 2 | Amendment 3 (2016)
11 Jul 2016 2016-07-12 17:37:07 UTC 2 3 00 series of amendments | Supplement 13 Based upon the adopted proposal: WP.29/2015/109

Pursuant to the addition of a new speed symbol for forestry tyres, this proposal would add a bonus loads column for A6-rated tyres to Annex 7-Part D. The proposal also corrects the tables concerning “Agricultural implement tyres – Normal section sizes”.

UN R106 | Revision 2 | Amendment 4 (2017)
22 Feb 2017 2017-05-31 17:50:03 UTC 2 4 00 series of amendments | Supplement 14 Based upon the adopted proposal: WP.29/2016/59

Proposal to align UN R106 with international standards (ETRTO, T&RA and ISO 4351-2 table 2) with regard to Improved Flexion (IF) tyres and Very high Flexion (VF) tyres to add load indexes to the table in the Annex 4 to keep up with the technical evolution of tyres. This proposal also clarifies the application of EC Regulation 167/2013 which refers to UN R106.

UN R106 | Revision 2 | Amendment 5 (2018)
27 Apr 2018 2018-05-10 08:58:41 UTC 2 5 00 series of amendments | Supplement 15 Based upon the adopted proposal: WP.29/2017/70

Proposal to introduce new tyres size usually listed in Annex 5 in a new Resolution in order to simply maintenance of this annex and reduce the volume of amendments. This proposal includes changes regarding Improved Flexion (IF) tyres and Very high Flexion (VF) tyres. The proposal harmonizes with EU framework legislation for agricultural vehicles.

UN R106 | Revision 2 | Amendment 6 (2019)
16 Jan 2019 2019-01-25 13:10:52 UTC 2 6 00 series of amendments | Supplement 16 Based upon the adopted proposal: WP.29/2018/57

Proposal to add tyre sizes and tyre classification codes common in the United States and standardised by the Tire and Rim Association, but needed under UN Regulation No. 106 in order to permit their type approval in conformity with Regulation EU 167/2013 for imported tyres. The proposal adds kPa marking specifications for use in measurements and tyre testing. The proposal further includes changes to the text and addition of tyre size designations to Annex 5 and Annex 7:

  1. Paragraph 2.33.2 deleted since new tables for IF and VF were added to Annex 7
  2. Paras 3.2., 3.2.2. and 5.4. modified because “tyres submitted for approval” cannot bear an approval mark until approved and the “only” as it is written can be misunderstood. Para. 3.2.2. was aligned to the wording in other UN Regulations. Reference to para. 3.3 in paragraph 5.4. is deleted because paragraph 3.3 does not refer to specific markings
  3. Para 6.1.2. amended to align the wording to the headers in Annex 5 and to correct the reference to the footnote
  4. Para 6.2.1. amended to restore the proper references after renumbering resulting from the latest Supplements
  5. The amendment of Annex 5, Table 5 adds the value for the overall diameter (D) in column (*) that applies to tyres marked with classification code “I-3”
  6. Annex 5, Table 6, Note 1 amended because most of the tyre sizes listed in the table, especially those identified by the “classification code I‐3” (i.e. Traction tread), are currently available in both versions: ‘implement’ to be used on agricultural machinery and ‘IND’ to be used on construction vehicles. The two types of tyres have the same type of size designation and the same dimensions. Therefore some manufacturers identify those tyres with the suffix ‘IND’ rather than with the suffix ‘IMP’ thus applying the variation of load capacity with speed as published in Annex 7 Part E. The reason for this proposal is to avoid a duplication of tables with a new table only replacing the suffix IMP with the suffix IND.
  7. The addition of the footnote to Annex 5, Table 7 answers the request by GRRF to introduce appropriate formulae in the Regulation instead of continuously updating Annex 5.
  8. References in Annex 7 corrected pursuant to the renumbering following the introduction of three new paragraphs in Supplement 15 approved during the 172nd session of WP.29.
  9. Annex 7, Part A amended to conform with Tire and Rim Association specifications for code designated diagonal tyres with speed symbol A8.
The proposal also adds a paragraph to define the purpose of the “SS” marking introduce by the amendments to UN R106 on agricultural and related off-road tyres.

UN R106 | Revision 2 | Amendment 7 (2019)
19 Nov 2019 2020-02-20 15:38:21 UTC 2 7 00 series of amendments | Supplement 17 Based upon the adopted proposal: WP.29/2019/5

Proposal to

  1. modify the scope with regard to Category S and R agricultural vehicles,
  2. modify the paragraph numbering (and related footnotes) to improve text clarity,
  3. to correct an error in Annex 5 Table 7 where “35×16” should read “36×16”,
  4. amend Annex 7 Part E to address variations of load-carrying capacity for tyres for construction applications (industrial tractors or skid-steers / mini-loaders) with speed category symbol “D”.

UN R106: Revision 1 (2009)
1 Apr 2009 2016-07-08 09:08:35 UTC 00 series of amendments | Corrigendum 1 00 series of amendments | Supplement 1 00 series of amendments | Supplement 2 00 series of amendments | Supplement 2 | Corrigendum 1 00 series of amendments | Supplement 3 00 series of amendments | Supplement 4 00 series of amendments | Supplement 5 00 series of amendments | Supplement 5 | Corrigendum 1 00 series of amendments | Supplement 6
UN R106: Revision 1-Amendment 1 (2010)
19 Feb 2010 2016-07-08 09:18:41 UTC 00 series of amendments | Supplement 7
UN R106: Revision 1-Amendment 2 (2010)
11 May 2010 2016-07-08 09:24:51 UTC 00 series of amendments | Supplement 8
UN R106: Revision 1-Corrigendum 1 (2009)
30 Sep 2009 2016-07-08 09:17:25 UTC
Earlier texts may be available through the UN Official Document System.