WP.29 187th session: amendments to UN Regulations
21–24 June 2022
Amendments to UN Regulations that the WP.29 documents submitted for the vote at the 187th session. Each change report shows what changes, why, and who is affected.
This list has the 38 amendments with a RegVault change report, in 30 regulations. It is not the full agenda of the session.
UN R12 — Steering mechanism
- 05 series — Base text
Under the low electrical energy criterion, the Total Energy (TE) on the high voltage buses must be less than 0.2 joules, instead of 2.0 joules.
UN R13 — Heavy vehicle braking
- 12 series — Supplement 1
For trailers, Annex 8, paragraph 2.5. now has an exception to the limit on the pressure at which the spring brakes begin to act.
- 11 series — Supplement 19
For trailers, Annex 8, paragraph 2.5. now has an exception to the limit on the pressure at which the spring brakes begin to act.
UN R13H — Braking of passenger cars
- 01 series — Supplement 4
Paragraph 5.2.22.2. gives requirements for vehicles with automatically commanded braking and/or regenerative braking which produce a retarding force.
UN R22 — Protective helmets and visors
- 06 series — Supplement 2
The Regulation now also applies to the accessories to be fitted to protective helmets or intended to be added to them.
UN R24 — Visible pollutants, measurement of power of C.I. engines (Diesel smoke)
- 03 series — Supplement 8
In Annex 4, the engine power tolerance at the other measurement points is now ± 4 per cent, not + 6 per cent and - 2 per cent.
UN R48 — Installation of lighting and light-signalling devices
- 08 series — Supplement 1
In case of doubt, paragraph 5.10.4.3. accepts red light to the front and/or white light to the rear below 0.25 cd per lamp. The values are those verified during type approval of the lamps, taking into account the influence of the vehicle body if applicable.
- 07 series — Supplement 3
In case of doubt, paragraph 5.10.4.3. accepts red light to the front and/or white light to the rear below 0.25 cd per lamp. The values are those verified during type approval of the lamps, taking into account the influence of the vehicle body if applicable.
- 06 series — Supplement 16
In case of doubt, paragraph 5.10.4.3. accepts red light to the front and/or white light to the rear below 0.25 cd per lamp. The values are those verified during type approval of the lamps, taking into account the influence of the vehicle body if applicable.
UN R49 — Emissions of C.I. and P.I. (LPG and CNG) engines
- 07 series — Supplement 1
Annex 2B has a new Addendum to the type approval communication. Items 1. and 5. of Section II now say “see Addendum”.
UN R51 — Noise of M and N categories of vehicles
- 03 series — Supplement 7
New Annex 9 gives a measurement method for the Real Driving Additional Sound Emission Provisions (RD-ASEP). Starting from 1 July 2023 and for a period of twelve months, Annex 9 measurements must be performed during type approval of a vehicle. Compliance with Annex 9 is not mandatory for the purpose of type approval.
UN R53 — Installation of lighting and light-signalling devices for L3 vehicles
- 03 series — Supplement 3
New paragraph 6.16. gives the installation rules for the adaptive driving-beam (ADB) on L3 vehicles.
- 02 series — Supplement 6
L3 vehicles may be fitted with an Adaptive Driving-Beam (ADB), with its own installation rules in new paragraph 6.16.
UN R54 — Tyres for commercial vehicles and their trailers
- 00 series — Supplement 25
The markings now give the service description, and one additional service description surrounded by a circle in case paragraph 6.2.5. is applied.
UN R74 — Installation of lighting and light-signalling devices (mopeds)
- 02 series — Supplement 2
When a vehicle has secondary driving-beam(s) approved under UN Regulations Nos. 113 or 149, at least one listed lamp must stay switched ON with them.
- 01 series — Supplement 14
If the vehicle has secondary driving-beam(s) approved to UN Regulations Nos. 113 or 149, at least one listed lamp must remain switched ON with them.
UN R79 — Steering equipment
- 04 series — Supplement 3
New paragraphs 5.6.4.8.1.2. and 5.6.4.8.1.3. cover N2 and N3 vehicles able to assist lane change when coupled to an O3 or O4 trailer.
- 03 series — Supplement 8
New paragraphs 5.6.4.8.1.2. and 5.6.4.8.1.3. cover N2 and N3 vehicles able to assist lane change when coupled to an O3 or O4 trailer.
UN R85 — Measurement of the net power and the 30 min. power
- 00 series — Supplement 11
Annex 6 now also applies to electric drive trains used as the sole mode of propulsion of HEVs, at least for part of the time.
UN R86 — Installation of lighting and light-signalling devices for agricultural vehicles
- 02 series — Supplement 1
Paragraphs 6.1.2. and 6.2.2. now list the type approvals for main-beam and dipped-beam headlamps, with classes of UN Regulation No. 149.
- 01 series — Supplement 4
Paragraphs 6.1.2. and 6.2.2. now list the type approvals for main-beam and dipped-beam headlamps, with classes of UN Regulation No. 149.
UN R90 — Replacement braking parts
- 02 series — Supplement 9
Item (b) of the Annex 7a grouping criteria now ends “or, in case of drum brakes, of only one brake shoe”.
UN R100 — Electric power trained vehicles
- 03 series — Supplement 2
Paragraphs 6.4.1.1. and 6.4.2.1.1. now refer to UN Regulation No. 137 (02 series of amendments or later) for frontal impact, not the 01 series.
UN R109 — Retreaded tyres for commercial vehicles and their trailers
- 00 series — Supplement 11
Paragraph 6.4.10. now also permits upgrading of the service description for a used casing, under conditions on the traceability of the carcasses.
UN R117 — Tyres rolling resistance, rolling noise and wet grip
- 03 series — Base text
New paragraph 6.4.1. sets wet grip index (GB) limits for class C1 tyres in worn state, tested with the new Annex 9 procedure.
UN R127 — Pedestrian safety
- 03 series — Base text
Headform tests must now also be made to the windscreen, within the windscreen test area of new paragraph 2.44.
UN R129 — Enhanced Child Restraint Systems (ECRS)
- 03 series — Supplement 7
Paragraph 6.6.4.5.1. now says that side protection must be positioned "at the same horizontal level and longitudinal position as that of the dummy’s head centre of gravity, between the vertical longitudinal planes of the head and the door panel" at the start of the lateral impact test.
UN R131 — Advanced emergency braking systems (AEBS)
- 02 series — Base text
Paragraph 5.2.2. now covers a vehicle to pedestrian scenario, with requirements for collision warning, emergency braking, speed range and speed reduction.
UN R135 — Pole Side Impact (PSI)
- 02 series — Base text
New paragraph 5.6. covers protection against electrical shock, electrolyte spillage, REESS retention and REESS fire hazards after the Annex 3 test.
UN R136 — Electric vehicles of category L (EV-L)
- 01 series — Base text
New paragraphs 6.10. to 6.15. cover overcurrent protection, low-temperature protection, management of gases emitted from REESS, two REESS warnings and thermal propagation.
UN R137 — Restraint system in front impact
- 02 series — Supplement 3
New paragraph 3.1.2. of Annex 5 gives the sequence to level the head of the test dummy in vehicles with adjustable backs.
- 01 series — Supplement 4
New paragraph 3.1.2. of Annex 5 gives the sequence to level the head of the test dummy in vehicles with adjustable backs.
UN R141 — Tyre pressure monitoring systems (TPMS)
- 01 series — Supplement 2
A TPRS or CTIS must fulfil paragraphs 5.1.2., 5.1.3., 5.4. to 5.6. and Annex 4 to be deemed equivalent for Type Approval to a TPMS.
UN R145 — ISOFIX anchorage systems, ISOFIX top tether anchorages and i-Size seating positions
- 00 series — Supplement 2
The definition of “vehicle type” no longer lists the characteristics of any restraint system component that influences the forces applying to the anchorages.
UN R148 — Light-Signalling Devices (LSD)
- 01 series — Base text
On request of the applicant, a lamp (function) may incorporate only one manufacturer logo inside its apparent surface, under the conditions of new paragraph 4.5.5. Stop lamps, direction indicator lamps and reversing lamps must not incorporate a logo.
UN R149 — Road Illumination Devices (RID)
- 01 series — Base text
Passing-beam requirements in paragraph 5.2. now cover Class C and V headlamps (symbols “C” and “V”), instead of Class A, B and D (GDL).
UN R150 — Retro-Reflective Devices (RRD)
- 01 series — Base text
New definitions use the coefficient of luminous intensity RI and the specific coefficient of retro-reflection RA; RI is often referred to as CIL.
UN R162 — Immobilizers
- 00 series — Supplement 3
Annex 9, paragraph 4.3.1. now applies to unsetting of the immobilizer instead of unlocking of the device to prevent unauthorized use.