UN R131 — Supplement 4 to the 02 series of amendments

New paragraph 1.2. says that this Regulation does not apply to vehicles of Categories X and Y. Paragraph 1.1. now lists the categories as M2, N2, M3 and N3, and the word “approval” no longer has a footnote marker. The footnote “As defined in the Consolidated Resolution on the Construction of Vehicles (R.E.3.)” now cites document ECE/TRANS/WP.29/78/Rev.8. Before, it cited document ECE/TRANS/WP.29/78/Rev.6, para. 2. Its web address also changes.

New paragraph 4.1.1. gives an alternative at the request of the manufacturer “for vehicles of Category M2, and for those of Category M3 / N2 with a maximum mass below or equal to 8,000 kg, not equipped with a pneumatic braking system”. Approval must then be granted if the vehicle type “meets the requirements of paragraph 5. of the 02 or later series of amendments to UN Regulation No. 152”, subject to the conditions in paragraphs 4.1.1.1. to 4.1.1.3. In such an approval, paragraph 5.1.7. of this Regulation applies in place of paragraph 5.1.7. of UN Regulation No. 152. In such an approval, for vehicles of category M2 and M3, the performance requirements in paragraph 5.2. of UN Regulation No. 152 “corresponding to M1 category vehicles” apply. For vehicles of category N2, those “corresponding to N1 category vehicles” apply. The deleted footnote of paragraph 1. said that, for vehicles “of category M2, and for those of category M3/N2 with a maximum weight below or equal to 8t, equipped with hydraulic braking”, Contracting Parties “that are signatories to both UN Regulation No. 152 and this Regulation shall recognize approvals to either Regulation as equally valid”.

New paragraph 4.4.3. adds “A dash and an additional symbol after the approval number”. The symbol is “C” where the approval is granted for a system “to avoid or mitigate the severity of a rear-end in lane collision with a preceding vehicle”, tested according to paragraph 5.2.1. It is “P” where the approval is granted for a system “to avoid or mitigate the severity of an impact with a pedestrian”, tested according to paragraph 5.2.2. It is “X” where the approval is granted according to paragraph 4.1.1., if applicable. A new model approval mark in Annex 2 shows an approval for Vehicle-to-Vehicle scenario and for Vehicle-to-Pedestrian scenario “utilising the test requirements of UN Regulation No. 152”. In the existing Annex 2 note, “Vehicle to Vehicle” becomes “Vehicle-to-Vehicle scenario”, and “Vehicle to Pedestrian” becomes “Vehicle-to-Pedestrian scenario”.

Paragraph 4.2. now says that the first two digits of the approval number are “at present 02, corresponding to the 02 series of amendments”. Paragraph 4.3. now says that notice of approval or of refusal or withdrawal of approval is communicated to the “Parties to the Agreement which apply this Regulation”, in place of the “Contracting Parties to the Agreement which apply this Regulation”. Paragraphs 4.4.1. and 4.4.2. now write “letter” with a lower-case first letter.

Item 10. now reads “Approval granted/extended/revised/refused/withdrawn”. Before, it read “Approval”. Item 10.1. now reads “For system to avoid or mitigate the severity of a rear-end in lane collision with a preceding vehicle: yes/no”. Item 10.2. now reads “For system to avoid or mitigate the severity of an impact with a pedestrian: yes/no”. Before, these items ended with “scenario granted/refused/extended/withdrawn”. New item 10.3. reads “Utilising the test requirements of UN Regulation No. 152 (according to paragraph 4.1.1.): yes/no”.

Paragraph 5.4.5. is now the heading “Special provisions for vehicles equipped with an ADS”. The AEBS must be deactivated upon activation of an ADS feature, and must not be able to be activated while an ADS feature is active. The AEBS must be automatically reactivated upon deactivation of an ADS feature. The provisions of paragraph 5.4.4. do not apply while an ADS feature is active. Before, paragraph 5.4.5. said that the AEBS function “may be suspended or its control strategies (i.e. braking demand, warning timing) adapted without indication to the driver” while automated driving functions are in longitudinal control of the vehicle. The condition was “as long as it remains ensured that the vehicle provides at least the same collision avoidance capabilities as the AEBS function during manual operation”.

Under new paragraph 12.2.7., until 12 months after the date of entry into force of Supplement 4, Contracting Parties applying this UN Regulation “can continue to extend UN type approvals to the 02 series of amendments to this UN Regulation without taking into account the provisions of Supplement 4”.