UN R137 change reports — Restraint system in front impact
UN Regulation No. 137 (ECE R137) — Uniform provisions concerning the approval of vehicles with regard to restraint systems, fuel system integrity and protection against electrical shock in the event of a frontal collision.
04 series
- 04 series — Supplement 1
The Regulation is now amended to account for vehicles of category X, and it does not apply to vehicles of category Y.
- 04 series — Base text
Paragraph 5.2.1.2.3. now sets a ThCC limit of 34 mm also for some vehicles of category N1. These vehicles have a maximum permissible mass not exceeding 2,800 kg, maximum vehicle width not exceeding 1,480 mm and length not exceeding 3,400 mm.
03 series
- 03 series — Supplement 1
Footnote 1 of Annex 6 now refers to Addendum 6 of M.R.1 for the “H” point procedure, instead of Annex 1 to R.E.3.
- 03 series — Base text
In the case of a compressed hydrogen-fuelled vehicle, new paragraphs 5.2.7.1. to 5.2.7.3. set requirements on hydrogen leakage, gas concentration and container attachment.
02 series
- 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.
- 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.
- 02 series — Supplement 2
The “Specific voltage condition” definition in paragraph 2.37. has a new Note 2. For pulsating DC voltages (alternating voltages without change of polarity), the DC threshold must be applied.
- 02 series — Supplement 1
From 1 September 2023, Contracting Parties are not obliged to accept type-approvals of vehicles to the preceding series first issued after that date (para. 12.2.).
01 series
- 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.