The provisions of UN Regulation No. 16 (paragraph 6.4.1.4.1.) only allow contact of the chest of the dummy driver with the steering assembly, provided that this contact fulfils certain energy-dissipation test requirements and that contact does not occur at a speed higher than 24 km/h. In response to the updated provisions of UN Regulation No. 16 which allow greater forward displacement of occupants, UN Regulation No. 17 will be updated to provide requirements on improved energy-dissipation criteria for those areas of the rear of seats and head restraints where impact of the head of the rear occupant may occur. Given the update to UN R17, this proposal would amend the scope of UN R25 (which has not been updated with regard to energy dissipation) to cover only vehicle categories M2 < 3.5 tons and N1 and mention explicitly that application to N2 and N3 vehicle categories is optional.

Proposal to limit the use of a booster cushion (booster seat without backrest) with children of a stature greater than 125 cm and the application for type approval of such CRS only in mass Group III for children of mass from 22 kg to 36 kg. The proposal is submitted on behalf of the CRS informal working group.

Revised version of the proposal (formal document GRSP/2015/9 ) to extend the scope of UN Regulation No. 129 to include non-Integral child restraint systems (“Universal Booster” or “Specific to vehicle Booster”). This version includes all corrections to the text made by the Informal Working Group on Child Restraint Systems through its September session. (The CRS informal group will discuss this version during its October session.)

Proposal to introduce an integral fixture for lateral (lie flat, carry cot) child restraint systems.

Proposal to introduce phase 2 amendments related to the booster seat category (booster seat with backrest) into UN R129. The text includes all modifications proposed by GRSP up to and including its 57th session (Geneva, 18–22 May 2015) as well as those of the IWG CRS up to and including its 53rd session (London, 2 September 2015). The proposal builds on the original UN Regulation No. 129, Corrigendum 1, Supplements 1, 2, 3 and 4 as well as the draft 01 series of amendments to the UN Regulation (ECE/TRANS/WP.29/GRSP/2015/24) Phase 1.

Changes to NCAP testing oblige the use of load limiters on safety-belts with lower threshold values that yield less thorax compression but also allow for greater forward displacement of the occupants. To address the greater forward displacement of rear occupants, UN R17 is under revision to require more stringent energy dissipation performance for those areas of the rear of seats (including the head restraints and parts mounted on the seat) where the head of the rear occupant may come into contact. UN R21 allows for alternative testing of the rear parts of seats (paras. 5.7-5.7.3. ) However, in light of the changes to UN R17, this alternative approach is no longer valid. This proposal would delete the alternate method and expands the scope of UN R21 to include testing of any parts mounted on the seats.

EVS informal group secretary proposal for work structure and schedule. The co-sponsors of the GTR have agreed to a two-step approach and a one-year extension of the effort. The plan is to submit the first final draft to GRSP for initial consideration (i.e., as an informal document) for the December 2016 session.

US comments on the draft GTR text as presented in document EVS-08-07.

Proposal to clarify UN R16 provisions for the dynamic testing of rear seat systems, advanced restraint system approval and transitional provisions.

Proposal to clarify that a guide strap which constrains the shoulder strap of the adult seat belt in a position to suit the child in a child restraint system cannot be approved as a separate CRS under UN R44.

Copy of GRSP/2015/32 for discussion during the 54th CRS informal group session. This proposal would limit the use of booster cushions (booster seats without backrest) to children taller than 125 cm and limit their type approval under UN R44 to Group III.

Data to support change from plastic to aluminum hip cup in order to resolve Q-dummy problem where the plastic cup has not been strong enough to retain the hip joint (ball and socket) in position.

Presentation of proposal for interim solution to allow for booster cushions without a backrest to be kept in UN R44 (but prohibited for children smaller than 125 cm) pending development of provisions for non-integral i-Size booster seats with integrated backrest under UN R129 (Phase2).

Reference document for 54th CRS informal group discussion providing background on child stature discussions under the EU EPOCh (Enabling Protection for Older Children) project.

Presentation to highlight inconsistencies in the lateral and forward cumulative head and chest acceleration injury criteria (determination of the maximum acceleration with a cumulative duration of at least 3ms).

Copy of document GRSP/2015/24 for discussion during the 54th CRS informal group session. This proposal would extend the scope of UN Regulation No. 129 to include non-Integral child restraint systems (“Universal Booster” or “Specific to vehicle Booster”).

Informal group discussion version of document GRSP/2015/24, including proposed transitional provisions starting from 2018.

Review of UN R129 testing with regard to child dummy performance, submarining, pelvic/abdominal measurements, and injury criteria.