Proposal as approved by the GRSP to introduce new provisions for folding seats.

Proposal to define the moment of inertia in the luggage-impact test as “0.3 ± 0.05 kgm2 (around all 3 principal axis of inertia of the luggage blocks)”. UN R17 presently lacks such a definition, resulting in variations in trajectory and behavior of the luggage cubes before and after impact. This proposal would also correct a reference to UN R25 to refer to the 04 series of amendments rather than to the 03 series of amendments.

Proposal to clarify the testing of seats with and without head restraints. This proposal would allow alternatives at the request of the manufacturer by clarifying that under testing of a bench seat with three seating positions and two head restraints, a moment of 3 × 373Nm shall be applied to the back of seats and of 2 × 373Nm to the head restraints:

1. If the manufacturer wants to comply with the test requirements of paragraph 6.2. (strength of the seat-back), by the test of head restraint performance of paragraph 6.4., they choose to apply 53 daNm to each seat back without head restraint and 89 daN to each head restraint. In this case only one test shall be performed.
2. If the manufacturer chooses not to apply 53 daNm, during the test of paragraph 6.4., the seat back strength test of paragraph 6.2. has to be performed in addition to the test of paragraph 6.4.

Proposal to require seat belt components such as retractors to remain functional if damaged during the load-retention test according to Annex 9 of UN R17. Such components have occasionally been damaged during testing such that their functionality has been impaired. In order to ensure adequate occupant safety, this proposal would require all safety-belt components to be included in the test installation and require post-test inspection to confirm the continued functionality. The transitional provisions phase in the new requirements during September 2020-September 2022.

GRSP proposal to transpose provisions of UN Global Technical Regulation No. 7, Phase 2 into UN Regulation No. 17.

Proposal to clarify the possibility to install side-facing seats in buses of category M2 and M3 of classes A and I.

Proposal to correct the cross-reference to paragraph 5.11. in paragraph 6.4.3.5. The text should refer to paragraph 5.12.

Proposal to clarify the text and correct inconsistencies introduced in the 09 and 10 series of amendments, including with regard to assessment of energy dissipation on the head restraint, the test procedures for minimum width measurement, displacement and strength, gap measurement, backset measurement, seat back and its design angle, and the “10° Change in Actual Torso Angle”.

Proposal to ensure that only safe head restraints are fitted to seats of any seating position in all vehicle categories within the scope of UN R17 and to extend the test performance of paragraph 5.7.4 (height retention of head restraints) to non-adjustable head restraint with only one position of use.

Proposal to enable application of UN R17 to ADS vehicles.

Proposals to enable application of the regulation to vehicles equipped with an Automated Driving System (ADS).

Proposals to enable application of the regulation to vehicles equipped with an Automated Driving System (ADS).

Proposal to clarify the text and correct inconsistencies introduced in the 09 and 10 series of amendments, including with regard to assessment of energy dissipation on the head restraint, the test procedures for minimum width measurement, displacement and strength, gap measurement, backset measurement, seat back and its design angle, and the “10° Change in Actual Torso Angle”.

Proposals to enable application of the regulation to vehicles equipped with an Automated Driving System (ADS).

Proposal to improve whiplash protection for occupants of smaller stature and, in particular, for female drivers.

Proposal to clarify the text for consistency, including replacement of the wording “torso line” by “median longitudinal plane of the seat” and to align the text with GTR 7 concerning the determination of whether a seat includes a head restraint that must comply with the requirements of this regulation.

Proposal to clarify the text and correct inconsistencies introduced in the 09 and 10 series of amendments, including with regard to assessment of energy dissipation on the head restraint, the test procedures for minimum width measurement, displacement and strength, gap measurement, backset measurement, seat back and its design angle, and the “10° Change in Actual Torso Angle”.