WP.29 190th session: amendments to UN Regulations
20–22 June 2023
Amendments to UN Regulations that the WP.29 documents submitted for the vote at the 190th session. Each change report shows what changes, why, and who is affected.
This list has the 29 amendments with a RegVault change report, in 25 regulations. It is not the full agenda of the session.
UN R13 — Heavy vehicle braking
- 13 series — Base text
New item (d) adds a group of N3 vehicles with 4 axles to the vehicle stability function requirement of paragraph 5.2.1.32. These vehicles have two power-driven axles in the rear axle group and only non-driven axles in the other axle group(s), including off-road vehicles.
UN R16 — Safety-belts
- 08 series — Supplement 4
Figures 2 and 3 of Annex 17, Appendix 5 (booster seat envelopes ISO/B2 and ISO/B3) get new drawings.
UN R24 — Visible pollutants, measurement of power of C.I. engines (Diesel smoke)
- 03 series — Supplement 10
Annex 1 has a new paragraph 0.5. for the name(s) and address(es) of the assembly plant(s).
UN R41 — Noise emissions of motorcycles
- 05 series — Supplement 2
The RD-ASEP table in Annex 1, item 18, has two new rows: approach condition to line AA’ and throttle control position (%).
UN R49 — Emissions of C.I. and P.I. (LPG and CNG) engines
- 07 series — Supplement 2
New paragraph 3.5. covers applications for type approval of engines fuelled with hydrogen. Hydrogen must be the fuel the engine is designed to run on primarily.
UN R51 — Noise of M and N categories of vehicles
- 03 series — Supplement 9
RD-ASEP measurements must be performed during type approval for twelve months from 1 July 2023. For these, the Technical Services must communicate the complete test report (in pdf format) to the Type Approval Authority. The monitoring information must also be entered into the “RD-ASEP Monitoring Data Sheet”.
UN R54 — Tyres for commercial vehicles and their trailers
- 00 series — Supplement 26
New paragraph 4.1.6.1. says that the speed category symbol E can be used only for the additional service description. In paragraph 2.31.2., symbol E corresponds to 70 km/h.
UN R75 — Tyres for L-category vehicles
- 00 series — Supplement 20
Special tyres declared by the tyre manufacturer at paragraph 4.1.3. as complying also with paragraph 2.33. now take the “M+S”, “M.S” or “M&S” inscription.
UN R78 — Braking (category L vehicles)
- 06 series — Base text
Paragraph 5.1.19. applies Annex 4 to the safety aspects of complex electronic vehicle control systems which provide or form part of the braking control transmission.
UN R79 — Steering equipment
- 04 series — Supplement 4
New text in paragraph 5.6.4.2.3. lets the ACSF of Category C switch automatically to standby mode. This follows an activation request on any type of road by a deliberate action with the same means as for ACSF of Category B1.
- 03 series — Supplement 9
New text in paragraph 5.6.4.2.3. lets the ACSF of Category C switch automatically to standby mode. This follows an activation request on any type of road by a deliberate action with the same means as for ACSF of Category B1.
UN R83 — Emissions of M1 and N1 vehicles
- 08 series — Base text
The scope now covers idling emissions (Type 2 test), crankcase emissions (Type 3 test) and exhaust emissions at low ambient temperature (Type 6 test).
- 07 series — Supplement 16
For tests according to this Regulation after “[xx-xx-20xx]”, new paragraph 3.2.8. requires the rear position lamp setting that applies at ambient light above 7,000 lux.
- 06 series — Supplement 19
In new paragraph 3.2.7. of Annex 4A, the test vehicle must have the group's daytime running lamp system with the highest electrical energy consumption. The daytime running lamps as defined in paragraph 2. of Regulation No. 48 must be switched ON during the test cycle.
UN R85 — Measurement of the net power and the 30 min. power
- 00 series — Supplement 12
A new sentence in paragraph 5.2.3.4., for compression ignition engines and dual-fuel engines, says: “In the case that testing for emissions according to UN Regulations Nos. 49 and/or 24 is conducted at the same time as testing to this Regulation, at the request of the manufacturer the same fuel for testing emissions may be used for testing to this Regulation”.
UN R94 — Frontal collision protection
- 04 series — Supplement 2
New paragraph 7.1.2.1. says when a change to the vehicle structure or mass requires a repeat of the Annex 3 test.
UN R95 — Lateral collision protection
- 05 series — Supplement 3
New paragraph 6.1.2.1. says when a structure or reference mass change requires a repeat of the Annex 4 test.
UN R101 — CO2 emission/fuel consumption
- 01 series — Supplement 12
In tests after the date in new paragraph 5.1.2.1., rear position lamps must be in the operating condition for ambient lighting above 7,000 lux.
UN R109 — Retreaded tyres for commercial vehicles and their trailers
- 00 series — Supplement 12
Annex 10, paragraphs 1.3., 2., 2.1. and 2.2. now refer to ASTM standard F1805-20 in place of ASTM standard F1805-06.
UN R110 — CNG and LNG vehicles
- 04 series — Supplement 4
New paragraph 24.25bis. applies notwithstanding paragraphs 24.23 and 24.25. Contracting Parties must continue to accept type approvals to the preceding series for vehicles, equipment or parts not affected by the 04 series.
UN R117 — Tyres rolling resistance, rolling noise and wet grip
- 04 series — Supplement 1
New paragraph 12.17. covers new tyres manufactured before the date in paragraph 12.5. and approved to the 02 or 03 series of amendments. Until 6 January 2029, Contracting Parties applying this Regulation must continue to allow fitting of these tyres on a vehicle in use.
UN R127 — Pedestrian safety
- 03 series — Supplement 2
New paragraph 11.12. requires Contracting Parties applying this Regulation to continue to grant type approvals using the “specific provisions related to BRRL” until 1 September 2030, notwithstanding paragraph 11.9.
UN R129 — Enhanced Child Restraint Systems (ECRS)
- 03 series — Supplement 9
Forward-facing integral ECRS and non-integral booster seats tested with the Q3 or Q6 dummy now have a DA plane value of 840 mm. For non-integral booster cushions, this value applies with the Q6 dummy.
UN R134 — Hydrogen and Fuel Cell Vehicles (HFCV)
- 01 series — Supplement 2
In Annex 5, paragraph 4.5., the measurement device must have a measurement response-time (t0 - t90) of less than two seconds. Before, the measurement response time had to be less than 300 milliseconds.
- 00 series — Supplement 5
In Annex 5, paragraph 4.5., the measurement device must have a measurement response-time (t0 - t90) of less than two seconds. Before, the measurement response time had to be less than 300 milliseconds.
UN R135 — Pole Side Impact (PSI)
- 02 series — Supplement 1
Under new item (d) of paragraph 6.1.2., a modification is also designated an “extension” “to cover all the other variants of the vehicle type for which the sum of the unladen vehicle mass and the rated cargo and luggage mass is not more than 8 per cent greater than that of the vehicle used in the approval test, provided there is no conflict with the provisions of paragraph 6.1. above”, “in addition to the change of the particulars recorded in the information folder”.
UN R137 — Restraint system in front impact
- 02 series — Supplement 4
New paragraph 7.1.2.2. says when a structure change and/or a mass increase requires a repetition of the Annex 3 test.
UN R153 — Fuel system integrity and electric power train safety at rear-end collision
- 00 series — Supplement 3
In the definition of “Vehicle type”, paragraphs 2.1.2., 2.1.7. and 2.1.9. now have the condition “in so far as they have an adverse effect on the results of the impact test”.
UN R155 — Cyber security and cyber security management system
- 00 series — Supplement 2
In Annex 5, Tables A1 and B1, the examples for spoofing of messages by impersonation now name “V2X cooperative awareness or manoeuvre coordination messages”. Before, they named “802.11p V2X during platooning”.