WP.29 183rd session: amendments to UN Regulations
9–11 March 2021
Amendments to UN Regulations that the WP.29 documents submitted for the vote at the 183rd session. Each change report shows what changes, why, and who is affected.
This list has the 39 amendments with a RegVault change report, in 32 regulations. It is not the full agenda of the session.
UN R13 — Heavy vehicle braking
- 11 series — Supplement 18
New definitions and special requirements cover towing trailers, dollies and link-trailers (paras. 2.43. to 2.43.2. and 5.2.2.24. to 5.2.2.25.2.).
UN R13H — Braking of passenger cars
- 01 series — Supplement 2
After a battery recharge or replacement, vehicles with Category B regenerative braking now need further reconditioning of the linings to complete the recovery procedure.
UN R18 — Anti-theft of motor vehicles
- 03 series — Supplement 4
New paragraph 1.3. says that vehicles approved in accordance with Regulation No. 161 on Unauthorized Use are deemed to comply with this Regulation.
UN R30 — Tyres for passenger cars and their trailers
- 02 series — Supplement 23
Paragraph 3.4. no longer requires the markings and the approval mark to be moulded on to or into the tyres. They must be clearly legible, indelible and raised above or sunk below the tyre surface.
UN R41 — Noise emissions of motorcycles
- 05 series — Base text
RD-ASEP: vAA' must now be at least 10 km/h instead of 20 km/h, and vBB' must not exceed 100 km/h for vehicles with PMR>150.
- 04 series — Supplement 9
In Annex 3, the road surface covering of the test site must now conform only to ISO 10844:2014.
UN R46 — Devices for indirect vision
- 04 series — Supplement 9
The reflecting surface of a mirror must now be flat or convex, instead of flat or spherically convex (para. 6.1.2.2.1.).
UN R48 — Installation of lighting and light-signalling devices
- 07 series — Supplement 1
Paragraphs 6.2.4.2., 6.4.4.2. and 6.11.4.2. allow a higher maximum height for category N2G, N3G, M2G and M3G (off-road) vehicles.
- 06 series — Supplement 14
For category N2G, N3G, M2G and M3G (off-road) vehicles, the maximum height in paragraphs 6.2.4.2., 6.4.4.2. and 6.11.4.2. may be increased.
UN R53 — Installation of lighting and light-signalling devices for L3 vehicles
- 03 series — Supplement 1
Paragraph 3.2.4. now refers to paragraph 2.5.1. for the definition of the illuminating surface, instead of paragraph 2.7.1.
- 02 series — Supplement 4
Paragraph 3.2.4. now refers to paragraph 2.5.1. for the definition of the illuminating surface, instead of paragraph 2.7.1.
UN R54 — Tyres for commercial vehicles and their trailers
- 00 series — Supplement 24
The markings and the approval mark no longer need to be moulded on to or into the tyres (para. 3.4.). They must be clearly legible, indelible and raised above or sunk below the tyre surface.
UN R65 — Special warning lamps
- 00 series — Supplement 11
For groups of several flashes, the “on” time now runs from the beginning of the group's first flash to the end of its last flash.
UN R67 — LPG vehicles
- 03 series — Supplement 1
Paragraph 6.17.10.6. and the title of Annex 9, Figure 3 now say “K15 filling unit” instead of “light vehicle Euro filling unit”.
- 02 series — Supplement 3
New paragraph 11.7. covers type-approvals of components to the 01 series that the changes of the 02 series do not affect.
UN R74 — Installation of lighting and light-signalling devices (mopeds)
- 02 series — Supplement 1
Paragraphs 6.1.1. and 6.2.1. now also list Class B of UN Regulation No. 149.
- 01 series — Supplement 13
Item (g) of paragraph 6.1.1. and item (i) of paragraph 6.2.1. now include Class B of UN Regulation No. 149.
UN R75 — Tyres for L-category vehicles
- 00 series — Supplement 19
The tyre markings and the approval mark no longer need to be moulded on, to or into the tyres. They must be clearly legible, indelible and raised above or sunk below the tyre surface.
UN R79 — Steering equipment
- 03 series — Supplement 4
In several Annex 8 tests for ACSF of Category C, another vehicle approaches from the rear to enable the system. This step now applies unless the system is already enabled according to paragraph 5.6.4.8.3.
UN R86 — Installation of lighting and light-signalling devices for agricultural vehicles
- 01 series — Supplement 3
References to “[LSD]”, “[RID]” and “[RRD]” now name UN Regulations Nos. 148, 149 and 150.
UN R97 — Vehicle Alarm Systems (VAS)
- 01 series — Supplement 9
New paragraph 1.5. deems vehicles approved in accordance with Regulation No. 163 on Alarm System to comply with Part II of this Regulation.
UN R98 — Headlamps with gas-discharge light sources
- 02 series — Supplement 2
In the table of paragraph 6.2.5., the symbols “E max R” and “E max L” change to “I max R” and “I max L”.
- 01 series — Supplement 10
In the table of paragraph 6.2.5., the symbols “E max R” and “E max L” change to “I max R” and “I max L”.
UN R106 — Tyres for agricultural vehicles
- 00 series — Supplement 19
Tyre markings no longer have to be moulded during manufacture. The markings of paragraph 3.1. and the approval mark must be clearly legible, indelible and raised above or sunk below the tyre surface.
UN R107 — General construction of buses and coaches
- 09 series — Base text
The fire detection system must detect a temperature in excess of the reference temperature occurring during normal operation as declared by the manufacturer. This applies in the engine compartment and in each compartment where a combustion heater is located.
UN R113 — Headlamps emitting a symmetrical passing-beam
- 03 series — Supplement 2
Annex 3, Figure C, “Passing beam test points and zones for Class B headlamp(s)”, has a new drawing.
UN R116 — Anti-theft and alarm systems
- 00 series — Supplement 8
New paragraph 1.10. deems vehicles approved in accordance with Regulation No. 161 on Unauthorized Use to comply with Part I of this Regulation.
UN R117 — Tyres rolling resistance, rolling noise and wet grip
- 02 series — Supplement 13
Annex 5 has new wet grip index formulas, and its track characterization now uses the Standard Reference Test Tyre SRTT16.
UN R118 — Fire resistance of interior materials
- 04 series — Base text
New paragraph 5.2.4.1. covers single materials fulfilling the relevant requirements of paragraphs 6.2.1. to 6.2.7. If an adhesive agent not exacerbating the burning behaviour bonds them together, they are considered to fulfil the requirements as a composite material.
UN R123 — Adaptive front lighting systems (AFS)
- 02 series — Supplement 2
The introductory part of Annex 4 now lists passing-beam points 25LL, 50V and B50L (or 25RR, 50V and B50R for headlamps designed for left-hand traffic).
- 01 series — Supplement 10
The introductory part of Annex 4 now names passing-beam points 25LL, 50V and B50L (or 25RR, 50V and B50R for headlamps designed for left-hand traffic).
UN R124 — Replacement wheels for passenger cars
- 00 series — Supplement 2
In the Annex 8 impact test, the acceptance criteria now name “total loss of inflation pressure due to tyre depressurization” instead of “any loss of inflation pressure”.
UN R125 — Forward field of vision of drivers
- 01 series — Supplement 2
Item (b) of paragraph 5.1.3. now covers any “defrosting/demisting” normally in “zigzag” or sinusoidal form with the listed dimensions. Before, item (b) covered “defrosting/demisting” located within zone A.
UN R141 — Tyre pressure monitoring systems (TPMS)
- 01 series — Base text
The Regulation now also applies to vehicles of categories M2, M3, N2, N3, O3 and O4 when equipped with a tyre pressure monitoring system.
UN R142 — Tyre installation
- 01 series — Base text
The Regulation now applies to vehicles of category M, N and O with regard to the installation of their tyres, instead of category M1.
UN R148 — Light-Signalling Devices (LSD)
- 00 series — Supplement 3
Paragraph 4.6.1.4. no longer names direction indicator lamps of category 11, 11a, 11b, 11c and 12 as lamps that must comply with paragraph 5.6.3.
UN R149 — Road Illumination Devices (RID)
- 00 series — Supplement 3
Paragraph 4.13. now asks, if applicable, for a UN Regulation No. 48 failure signal if a light source and/or LED module has failed.
UN R150 — Retro-Reflective Devices (RRD)
- 00 series — Supplement 3
New paragraphs 3.3.4.7. to 3.3.4.10. set rules for the approval and approval marks of grouped, combined or reciprocally incorporated lamps.
UN R160 — Event Data Recorder (EDR)
- 01 series — Base text
The EDR non-volatile memory buffer must now accommodate the data related to at least three different events, instead of at least two.