ISOFIX position means a position satisfying regulation requirements to allow installation of ISOFIX child restraint systems as defined in UN R44 and UN R129. i-Size seating position means a seating position satisfying regulation requirements to allow installation of i-Size child restraint systems as defined in UN R129.

Proposal based on GRSP/2025/31 to amend para. 7.1.3.6. to require relevant intermediate dummies testing when Enhanced Child Restraint Systems require substantial modification for different sizes or when size range covers more than 3 size ranges and to delete paragraph 5.5. and renumber paragraphs 5.6. to 5.8. as 5.5. to 5.7.

Proposal to modify para. 6.2.1.1. regarding insert layers for small babies with stature below 50 cm, amend Annex 18, table 1 with updated shoulder height dimensions for statures 40 cm to 70 cm, update approval markings in Annex 2, and introduce transitional provisions with Contracting Parties no longer obliged to accept preceding series approvals from 1 September 2028.

Proposal to amend UN Regulation No. 129 to remove rebound head contact from the head acceleration requirement for all Child Restraint Systems. The regulation currently lacks consistency regarding whether rebound head movement is considered in testing. Variations in test bench design cause booster seats to pass in some laboratories but fail in others based solely on rebound contact. The proposal ensures consistency between different CRS types and reproducibility across laboratories with different test bench designs, and aligns with the approach in UN Regulations 94 and 137.

Proposal to amend UN R129 concerning Enhanced Child Restraint Systems. Modifications include: adjusting shoulder height dimensions in Annex 18 table 1 to align with anthropometric data for children from 40-70 cm; permitting one additional insert layer for infants below 50 cm; establishing minimum stature of 35 cm; and adding transitional provisions regarding type-approval acceptance timelines from September 2028-2029. Changes address fit concerns for premature newborns and small children.

Proposal to clarify that the removal of an insert may also trigger additional tests with alternative dummy statures.

Proposal to improve the shoulder height requirements to properly take the dimensions of premature newborns into account.

Proposal to enable approval of an Enhanced Child Restraint System (ECRS) with a module that is, or can be, converted into a booster seat or an ECRS with a module of a vehicle-specific application and to remove the prohibition on use of the Unique Identifier per the WP.29 decision to change the default application of the UI from a requirement (requiring prohibition in cases where UI does not apply) to a permission (requiring an affirmative statement that UI may be used under a Regulation).

Proposal ro clarify that the removal of an insert may also trigger additional tests with alternative dummy statures.

Proposal to improve the shoulder height requirements to properly take the dimensions of premature newborns into account

Presentation on creation of ISOFIX. There is interest from several specialists on Child Restraint Safety, CRS manufacturers and Consumer Organisations to add a 3rd fixed point.

Question remains, what if the ECRS is permanently or temporarily connected, on what basis can compliance with (the technical provisions of) UN R10 be required ?

This proposal removes rebound head contact from the head acceleration requirement for all CRS.

Proposal to clarify the prerequisites for the granting of type approval numbers for “Enhanced Child Restraint Systems”.

Proposal to clarify the prerequisites for the granting of type approval numbers for “Enhanced Child Restraint Systems”.

Proposal to remove the prohibition on use the Unique Identifier per the WP.29 decision to change the default application of the UI from a requirement (requiring prohibition in cases where UI does not apply) to a permission (requiring an affirmative statement that UI may be used under a Regulation).

Proposal to remove the prohibition on use the Unique Identifier per the WP.29 decision to change the default application of the UI from a requirement (requiring prohibition in cases where UI does not apply) to a permission (requiring an affirmative statement that UI may be used under a Regulation).

Proposal to remove the prohibition on use the Unique Identifier per the WP.29 decision to change the default application of the UI from a requirement (requiring prohibition in cases where UI does not apply) to a permission (requiring an affirmative statement that UI may be used under a Regulation).

Proposal to remove the prohibition on use the Unique Identifier per the WP.29 decision to change the default application of the UI from a requirement (requiring prohibition in cases where UI does not apply) to a permission (requiring an affirmative statement that UI may be used under a Regulation).

Proposal to enable approval of an Enhanced Child Restraint System (ECRS) with a module that is, or can be, converted into a booster seat or an ECRS with a module of a vehicle-specific application.

Proposal to clarify the prerequisites for the granting of type approval numbers for “Enhanced Child Restraint Systems”.

Proposal to clarify the prerequisites for the granting of type approval numbers for “Enhanced Child Restraint Systems”.

Proposal to extend the definition of a module.

Proposal from the STCBC informal group to clarify the provisions for granting type approval numbers for “Enhanced Child Restraint Systems”.

Proposal for the STCBC informal group to clarify the provisions for granting type-approval numbers to “Enhanced Child Restraint Systems”.

Proposal to correct editorial mistakes found in the 04 series of amendments to UN R129.

Proposal to correct an inconsistency in para. 6.3.8.1. by replacing the provision to apply a force of 2,500 N ± 50 N to each generic lower tether bracket with a force of 5,000 ± 100 N.

Proposal to correct an inconsistency in para. 6.3.8.1. by replacing the provision to apply a force of 2,500 N ± 50 N to each generic lower tether bracket with a force of 5,000 ± 100 N.

Draft proposal to require approval to UN R170 of Enhanced Child Restraint Systems approved according to UN R129 and eligible for installation in buses with a 2-point seat belt.

Proposal to correct an inconsistency in para. 6.3.8.1. by replacing the provision to apply a force of 2,500 N ± 50 N to each generic lower tether bracket with a force of 5,000 ± 100 N.

Proposal to clarify the conditions under which Enhanced Child Restraint Systems must be tested in a vehicle body shell and to allow installation of a dummy protective device on the UN R129 bench in the dynamic frontal test with a universal booster cushion.

Proposal to clarify the conditions under which Enhanced Child Restraint Systems must be tested in a vehicle body shell and to allow installation of a dummy protective device on the UN R129 bench in the dynamic frontal test with a universal booster cushion.

Proposal to correct editorial mistakes found in the 04 series of amendments to UN R129.

Proposal to allow installation of a dummy protective device on the UN R129 bench in the dynamic frontal test with a universal booster cushion. (Also proposed as Supplement 11 to the 03 series of amendments).

Explanatory presentation to …/GRSP/2023/38 – Clarification of test bench vs. bodyshell testing

Explanations and clarifications concerning the “one belt route” provisions.

Proposal to to clarify the single belt route principle mentioned in paragraph 3.2.2. and to restrict use of the colour green exclusively to the marking belt route indicators.

Proposal to clarify the conditions under which Enhanced Child Restraint Systems must be tested in a vehicle body shell.

Proposal to:

1. Clarify the single belt route principle mentioned in paragraph 3.2.2.
2. Introduce definitions, requirements and a test procedure for lower tether anchorages
3. Restrict use of the colour green exclusively to the marking belt route indicators.

The text prepared by the Ad Hoc Group on CRS, aiming to introduce definitions, requirements and a test procedure for lower tether anchorages.

The proposed amendment does not intend to change the requirements nor the level of stringency. The footnote to paragraph 3.2.2. is added to further clarify the definition of the use of a one belt route. In its current state, the text apparently has been interpreted as to allow the use of a single belt route for each application that an Enhanced Child Restraint System (ECRS) would offer. That way, one belt route for a rearward facing ECRS (integral) and a second belt route for a forward facing (non- integral) ECRS has been introduced, making a combination of C and E.

Proposal to clarify the conditions under which Enhanced Child Restraint Systems must be tested in a vehicle body shell.

Proposal to amend the current support leg volume to improve the compatibility between the support leg volume and the Child Restraint Fixtures used for assessing the external dimensions of an Enhanced Child Restraint System (ECRS), harmonize the vertical excursion limit for Q3 and Q6 dummies, update the references to EN Standards for toxicity and flammability, clarify the approach used in the production-qualification testing phase, and make editorial improvements.

Proposal to restrict use of the colour green exclusively to the marking belt route indicators.

Proposal to clarify the single belt route principle mentioned in paragraph 3.2.2.

Proposal to introduce definitions, requirements and a test procedure for lower tether anchorages.

Proposal to introduce definitions, requirements, and a test procedure for Lower Tether Anchorages (as submitted to the May 2023 GRSP session).

Proposal to to introduce definitions, requirements and a test procedure for Lower Tether anchorages.

Proposal to restrict use of the colour green exclusively to the marking belt route indicators.

Proposal to update the references to EN Standards for toxicity and flammability.

Draft text to address lower tether straps in child restraints.

Proposal on behalf of the Technical Services Group to clarify the approach in the production qualification testing phase.

Proposal to clarify the requirements for monitoring the chest deflection of the Q10 dummy and for correct measurement of the location of the thoracic spine, to amend the existing procedure that measures the prescriptions of the minimum sitting height for booster cushions, and to correct editorial errors in the text of the Regulation.

Proposal to correct editorial mistakes.

Proposal from GRSP to make editorial corrections.

Proposal for editorial corrections and to harmonize the vertical excursion limit for Q3 and Q6 dummies.

Proposal from GRSP to clarify assessment of head containment injury criterion.

Proposal to clarify the requirements for monitoring the chest deflection of the Q10 dummy and for the correct measurement of the location of the thoracic spine.

Proposal to amend the existing procedure that measures the prescriptions of the minimum sitting height for booster cushions.

Proposal to correct editorial mistakes in the adopted text of the Regulation.

Proposal to correct editorial errors in the adopted text of the Regulation.

Proposal to correct editorial errors in the adopted text of the Regulation.

Proposal to clarify the head containment assessment for side impact testing.

Proposal to amend the current support leg volume to improve the compatibility between the support leg volume and the Child Restraint Fixtures used for assessing the external dimensions of an Enhanced Child Restraint System (ECRS).

Proposal from GRSP to clarify the application of the dynamic test procedures and specify the installation configurations to be tested.

Proposal from GRSP to clarify the application of the dynamic test procedures and specify the installation configurations to be tested.

Proposal from GRSP to clarify the application of the dynamic test procedures and specify the installation configurations to be tested.

Proposal from GRSP to clarify the application of the dynamic test procedures and specify the installation configurations to be tested.

Proposal to clarify

• provisions including the Test Report Template and Dimension Assessment Method
• that specific vehicle belted Enhanced Child Restraint Systems (ECRS) may be fitted with a support leg, top tether and lower tether attachments.

Proposal to clarify

• provisions including the Test Report Template and Dimension Assessment Method
• that specific vehicle belted Enhanced Child Restraint Systems (ECRS) may be fitted with a support leg, top tether and lower tether attachments.

Clarifies the application of the dynamic test procedures and specifies the installation configurations to be tested. Aims to clarify the tests conducted in a consistent way by Technical Services.

Proposal clarifies the application of the dynamic test procedures and specifies the installation configurations to be tested. Aims to clarify the tests conducted in a consistent way by Technical Service.

Proposal clarifies the application of the dynamic test procedures and specifies the installation configurations to be tested. Aims to clarify the tests conducted in a consistent way by Technical Services.

Proposal clarifies the application of the dynamic test procedures and specifies the installation configurations to be tested. Aims to clarify the tests conducted in a consistent way by Technical Services.

Clarifies how to assess the head containment. Increases the time frame for the assessment of the head containment criteria from the current period of 0 to 80 ms into the full duration of the entire test

Proposal to introduce provisions for a Digital User Guide.

Proposal to clarify that specific vehicle belted Enhanced Child Restraint Systems (ECRS) may be fitted with a support leg, top tether and lower tether attachments.

Proposal to clarify that the minimum prescribed dimensions of a CRS do not restrict the maximum dimensions of CRS.

Proposal for amendments to the injury assessment criteria for frontal and rear impact to specify limit values for tension force and flexion moment measured in the upper neck of the Q0, Q1 and Q1.5 dummies.

Proposal to clarify that specific vehicle belted Enhanced Child Restraint Systems (ECRS) may be fitted with a support leg, top tether and lower tether attachments. This proposal also amends the existing support leg volume to improve the compatibility between the support leg volume and the Child Restraint Fixtures used for accessing the external dimensions of an ECRS.

Proposal to introduce provisions for a Digital User Guide.

Proposal to clarify provisions including the Test Report Template and Dimension Assessment Method.

Consolidated proposal based on document GRSP/2020/3 to clarify aspects the current procedure, formalize the assessment practice and improve the transparency and consistency of Type Approval testing results. The document incorporates proposals for Digital User Guide and Test Report Template pursuant to discussions on document GRSP-67-16.

Proposals for “tasks and deliverables” with regard to enhanced child restraint systems and alternative seating configurations enabled by automated driving.

Proposal to clarify aspects of document GRSP/2020/03, which is based on documents GRSP-66-11 (Digital User Guide) and GRSP-66-12 (Test Report Template) introduced during the 66th GRSP session. The proposed amendments are based on feedback received from stakeholders.

Proposal for amendments to the injury assessment criteria for frontal and rear impact to specify limit values for tension force and flexion moment measured in the upper neck of the Q0, Q1 and Q1.5 dummies.

Proposal to update a reference with the new European Committee for Standardization (CEN) published EN 71-3:2019 on 10 April 2019 and to delete a cut-and-paste error in Annex 6, Appendix 2 taken from UN R44 referring to ECRS as in the “restricted” category which does not exist in UN R129.

Proposal to update a reference with the new European Committee for Standardization (CEN) published EN 71-3:2019 on 10 April 2019, to delete a cut-and-paste error in Annex 6, Appendix 2 taken from UN R44 referring to ECRS as in the “restricted” category which does not exist in UN R129, and to reconcile and consolidate various references to tolerances for the internal geometry assessment.

Proposal to clarify the requirements for the type approval category of booster seats over 135 cm, to update a reference with the new European Committee for Standardization (CEN) published EN 71-3:2019 on 10 April 2019, to delete a cut-and-paste error in Annex 6, Appendix 2 taken from UN R44 referring to ECRS as in the “restricted” category which does not exist in UN R129, and to reconcile and consolidate various references to tolerances for the internal geometry assessment.

The proposal was prepared by the expert from the European Association of Automotive Suppliers (CLEPA) to clarify aspects the current procedure, formalises the assessment practice and aims to improve the transparency and consistency of Type Approval testing results.

Proposal based on document GRSP/2019/19 to define the introduction of limit values for chest vertical acceleration of Q-dummies during dynamic testing of Enhanced Child Restraint Systems (ECRS).

Proposal to improve the repeatability and reproducibility of the assessment of the external dimensions of the ECRS. It does not change any current dimensional requirements relating to the sizes of the body of the ECRS, the support leg or the support leg foot.

Proposal to provide information on the essential measurement information that needs to be recorded in the Type Approval test report

Proposal to align UN R129 with the descriptions used in of UN R44 and UN R94 which refer to resultant head and chest accelerations.

Proposal to:

• Remove a residual reference in Annex 22 to ‘temporary’ requirements for belt-attached infant carrier modules;
• Extend and adapt the minimum breaking load requirements to cover the webbing straps of all categories of integral enhanced child restraint systems (not only i-Size); and
• Clarify that Integral Belted enhanced child restraint categories are required to undergo rear or lateral dynamic impact testing.

Proposal to update a reference with the new European Committee for Standardization (CEN) published EN 71-3:2019 on 10 April 2019, to delete a cut-and-paste error in Annex 6, Appendix 2 taken from UN R44 referring to ECRS as in the “restricted” category which does not exist in UN R129, and to reconcile and consolidate various references to tolerances for the internal geometry assessment.

Proposal to clarify the requirements for the type approval category of booster seats over 135 cm, to update a reference with the new European Committee for Standardization (CEN) published EN 71-3:2019 on 10 April 2019, to delete a cut-and-paste error in Annex 6, Appendix 2 taken from UN R44 referring to ECRS as in the “restricted” category which does not exist in UN R129, and to reconcile and consolidate various references to tolerances for the internal geometry assessment.

Proposal

• to clarify the requirements for the type approval of booster seats in the over 135 cm category,
• to update a reference with the new European Committee for Standardization (CEN) published EN 71-3:2019 on 10 April 2019,
• to delete a cut-and-paste error in Annex 6, Appendix 2 taken from UN R44 referring to ECRS as in the “restricted” category which does not exist in UN R129,
• to reconcile and consolidate various references to tolerances for the internal geometry assessment, and
• to exclude the head acceleration criterion in certain cases of contact when testing booster cushions with the larger Q-dummies, in particular the Q10, due to dummy rebound over the back of the test bench during a frontal test.

Proposal to specify the Q6 dummy in lieu of the Q3 with regard to integral ECRS testing and to add the Q3 to the already existing Q6 under the 02 series of amendments.

Proposal to introduce limit values for the chest vertical acceleration (Az) of Q dummies during dynamic testing of Enhanced Child Restraint Systems (ECRS) until such time as upper neck tension Force (Fz) and upper neck flexion moment (My) criteria can be established.

Proposal to update a reference with the new European Committee for Standardization (CEN) published EN 71-3:2019 on 10 April 2019 and to delete a cut-and-paste error in Annex 6, Appendix 2 taken from UN R44 referring to ECRS as in the “restricted” category which does not exist in UN R129.

Proposal to include booster cushion without a backrest within the scope of the 03 series of amendments to UN R129.

Final refinements developed during the May 2019 GRSP session to the proposal to include booster cushion categories within the scope of the 03 series of amendments to UN R129 (Supplement 3 to the 03 series).

Proposal to introduce chest vertical acceleration (Az) criteria until such time as upper neck tension Force (Fz) and upper neck flexion moment (My) criteria can be established.

Предложение по исправлению 3 к первоначальному варианту Правил ООН № 129 (усовершенствованные детские удерживающие системы): English wording “Upper neck tension force” corresponds to the following Russian wording “Сжимающая сила верхней части шеи”. English wording “Upper neck flexion moment” corresponds to the following Russian wording “Изгибающий момент верхней части шеи”.

Proposition de rectificatif 1 à la série 03 d’amendements au Règlement ONU no 129 (Dispositifs améliorés de retenue pour enfants): Proposal to align the French version with the adopted English version of the text (reference document WP.29/2018/45).

Proposal to

1. introduce new and modified labeling and to clarify packaging information to distinguish between forward-facing-only, rear-facing-only, and convertible CRS in order to reduce the risk of users misusing these enhanced CRS, and
2. clarify that assessment of the DE plane only applies to rearward-facing Child Restraint Systems (CRS) in UN Regulation No. 44 and therefore does not apply to forward-facing child restraints that maintain structure of the child restraint behind the head of the dummy.

Proposal to

1. introduce new and modified labeling and to clarify packaging information to distinguish between forward-facing-only, rear-facing-only, and convertible CRS in order to reduce the risk of users misusing these enhanced CRS, and
2. clarify that assessment of the DE plane only applies to rearward-facing Child Restraint Systems (CRS) in UN Regulation No. 44 and therefore does not apply to forward-facing child restraints that maintain structure of the child restraint behind the head of the dummy.

Proposal to

1. introduce new and modified labeling and to clarify packaging information to distinguish between forward-facing-only, rear-facing-only, and convertible CRS in order to reduce the risk of users misusing these enhanced CRS
2. clarify that assessment of the DE plane only applies to rearward-facing Child Restraint Systems (CRS) in UN Regulation No. 44 and therefore does not apply to forward-facing child restraints that maintain structure of the child restraint behind the head of the dummy
3. specify the dimensions of the approval number
4. correct the term “Regulation No. 129-02” to “UN Regulation No. 129/02”
5. change the 145 cm stature of the Specific Vehicle Booster seat to the 150 cm stature as this is the upper limit, and
6. modify the approval markings for consistency between technical services and approval authorities and between the labels of products approved under the 02 and 03 series.

Proposal to

1. introduce new and modified labeling and to clarify packaging information to distinguish between forward-facing-only, rear-facing-only, and convertible CRS in order to reduce the risk of users misusing these enhanced CRS
2. clarify that assessment of the DE plane only applies to rearward-facing Child Restraint Systems (CRS) in UN Regulation No. 44 and therefore does not apply to forward-facing child restraints that maintain structure of the child restraint behind the head of the dummy
3. specify the dimensions of the approval number
4. update i-Size universal ISOFIX, Specific Vehicle ISOFIX, i-Size Booster seat and Specific Vehicle Booster seat numbering (omitted in WP29-2018-045)
5. rearrange the dimensions mark for arrangements of the approval mark where used in combination with the module mark
6. change the 145 cm stature of the Specific Vehicle Booster seat to 150 cm stature as this is the correct upper limit, and
7. clarify that Conformity of Production assessments shall be conducted under the same requirements as those of the original approval or, if applicable, the extension of the approval.