WP.29 186th session: amendments to UN Regulations
8–11 March 2022
Amendments to UN Regulations that the WP.29 documents submitted for the vote at the 186th session. Each change report shows what changes, why, and who is affected.
This list has the 34 amendments with a RegVault change report, in 26 regulations. It is not the full agenda of the session.
UN R0 — International Whole Vehicle Type Approval (IWVTA)
- 04 series — Supplement 1
Supplement 1 adds transitional provisions to the 04 series of amendments in new paragraphs 12.5. and 12.6.
UN R9 — Noise of three-wheeled vehicles
- 08 series — Supplement 2
In Annex 3, the surface of the test track must conform to ISO 10844:2014, and the requirements of Annex 5 are no longer an alternative.
UN R10 — Electromagnetic compatibility
- 06 series — Supplement 2
Figure 1 of Annex 4, Appendix 1 now also shows the alternative 3 m antenna distance: 3,00 m ± 0,05 m for 3 m measurements.
UN R13 — Heavy vehicle braking
- 12 series — Base text
Paragraph 5.2.1.26.4. now requires the parking brake to apply automatically, at least when the vehicle is detected to be stationary and (a) or (b) applies. Item (a) is the switch-off of the ignition/start switch which controls the electrical energy for the braking equipment, and/or key removal. Item (b) is that the driver is deemed to leave the driving seat, with an alternative for vehicles of category M.
UN R39 — Speedometer and odometer
- 01 series — Supplement 2
New paragraph 5.5.2. requires the odometer to display the distance in the unit of the predominant speedometer scale.
UN R46 — Devices for indirect vision
- 05 series — Base text
New paragraph 6.2.2.1.2. exempts parts of the CMS external surface that protrude less than 5 mm from the radius requirement, under conditions on their angles.
UN R53 — Installation of lighting and light-signalling devices for L3 vehicles
- 03 series — Supplement 2
Paragraph 6.6.7. covers a front position lamp reciprocally incorporated with a direction indicator. The front position lamp on the relevant side, or its reciprocally incorporated part, must be OFF during the entire operation of the direction indicator lamp.
- 02 series — Supplement 5
Paragraph 6.6.7. covers a front position lamp reciprocally incorporated with a direction indicator. The front position lamp on the relevant side, or its reciprocally incorporated part, must be OFF during the entire operation of the direction indicator lamp.
UN R63 — Noise emissions of mopeds
- 02 series — Supplement 5
In Annex 3, the surface of the test track must now conform to ISO 10844:2014 only, not to the requirements of Annex 5.
UN R78 — Braking (category L vehicles)
- 05 series — Supplement 1
Paragraph 5.1.17.2. no longer limits the braking signal provisions under regenerative braking to vehicles powered solely by electric powertrain.
- 04 series — Supplement 2
Annex 3, paragraph 1.1.3. adds a new item (b): the ASTM F2493-20 standard reference test tyre for the measurement of the PBC.
- 03 series — Supplement 4
Annex 3, paragraph 1.1.3. adds the ASTM F2493-20 standard reference test tyre as a new way to measure the PBC.
UN R79 — Steering equipment
- 04 series — Supplement 2
For ACSF of Category B1, paragraph 5.6.2.2.3. now says that the system must avoid sudden loss of steering support. It must do this by continuing to provide assistance to the extent possible as outlined in the safety concept of the vehicle manufacturer.
- 03 series — Supplement 7
The system must now avoid sudden loss of steering support by continuing assistance to the extent possible as outlined in the vehicle manufacturer's safety concept.
UN R90 — Replacement braking parts
- 02 series — Supplement 8
Annex 15 has new definitions of “bell mounting face” (para. 1.5.) and “reference disc” (para. 1.6.).
UN R107 — General construction of buses and coaches
- 10 series — Base text
Under paragraph 7.6.8.2.2., an emergency window must now be made of toughened glass pane(s) instead of readily-breakable safety glass. An easy-to-operate device must make sure that a single person from inside the passenger compartment can break and remove each glass pane within 20 seconds.
UN R108 — Retreaded tyres for passenger cars and their trailers
- 00 series — Supplement 6
New paragraph 2.3.3. adds the category of use “Special use tyre”. New paragraph 6.9. gives the characteristics a tyre needs to be classified as a special use tyre or a professional off-road tyre.
UN R116 — Anti-theft and alarm systems
- 00 series — Supplement 9
Paragraph 5.3.1.1. now says “Before the engine as a motive power can be started” instead of “Before the engine can be started”.
UN R117 — Tyres rolling resistance, rolling noise and wet grip
- 02 series — Supplement 14
A class C1 snow tyre for use in severe snow conditions needs a minimum ice grip index of 1.18 for classification as ice grip tyre.
UN R121 — Identification of controls, tell-tales and indicators
- 01 series — Supplement 5
Either low tyre pressure tell-tale may now also be used to indicate a tyre pressure refill system (TPRS) and central tyre inflation system (CTIS) malfunction.
UN R125 — Forward field of vision of drivers
- 02 series — Supplement 1
In paragraph 5.1.3.5., the words “outside of area S” now read “above and on the sides of area S in the transparent area”.
- 01 series — Supplement 3
The Regulation now applies to the 180° forward field of vision of drivers of category M1 and N1 vehicles.
UN R141 — Tyre pressure monitoring systems (TPMS)
- 01 series — Supplement 1
Paragraphs 12.2. to 12.4. now name vehicle types of category N1 without twin wheels fitted on an axle, instead of other categories than M1.
UN R142 — Tyre installation
- 01 series — Supplement 1
Paragraph 10.2. on type approvals to the preceding series of amendments, first issued after 6 July 2022, is deleted.
UN R148 — Light-Signalling Devices (LSD)
- 00 series — Supplement 4
Paragraph 5.11.3. now groups the illuminated areas in categories 1a, 1b, 1c, 2a, 2b, 1 and 2, each with a minimum illuminated area. Category 1c is for use on agricultural or forestry tractors, and categories 1 and 2 are for use on a vehicle of category L.
UN R149 — Road Illumination Devices (RID)
- 00 series — Supplement 5
For AFS, new paragraph 3.3.2.4.8. adds “T” after the symbol(s) of all lighting function(s) and/or class(es) designed to comply with bend lighting provisions.
UN R154 — Worldwide harmonized Light vehicles Test Procedure (WLTP)
- 02 series — Base text
Table 1B now sets a particle number (PN) limit for Level 1B vehicles.
UN R155 — Cyber security and cyber security management system
- 00 series — Supplement 1
Paragraphs 7.3.1. and 7.3.4. now refer to type approvals first issued before 1 July 2024 and to each extension thereof.
UN R160 — Event Data Recorder (EDR)
- 01 series — Supplement 1
New paragraph 2.42. defines “Rollover” as any vehicle rotation of 90 degrees or more about any true longitudinal or lateral axis.
- 00 series — Supplement 1
New paragraph 2.29. defines “Rollover” as any vehicle rotation of 90 degrees or more about any true longitudinal or lateral axis.
UN R161 — Devices against Unauthorized Use
- 00 series — Supplement 2
Paragraph 5.2.1.1. now says “Before the engine as a motive power can be started” instead of “Before the engine can be started”.
- 00 series — Supplement 1
Paragraph 5.1.16. says that, in addition, digital keys must comply with the provisions of new Annex 9, “Safety provisions for digital keys”.
UN R162 — Immobilizers
- 00 series — Supplement 2
Paragraph 5.2.1.1. now says “under its own motive power” instead of “under its own power” in the immobilizer design rule.
- 00 series — Supplement 1
Paragraph 5.1.11. says that, in addition, digital keys must comply with the provisions of new Annex 9, “Safety provisions for digital keys”.