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:

• Insert new paragraphs 2.64. to 2.xx. on electronic components,
• Amend para. 3.2.1. to require technical descriptions including overview of Supplemental Restraint Systems,
• Insert new paragraphs 4.7.5. and 4.7.6. on international insert and small infant support marks,
• Renumber paragraphs 4.12. (second one), 4.12.1. to 4.12.4., and 4.13. as 4.13., 4.13.1. to 4.13.4., and 4.14.,
• Amend para. 4.12. to clarify insert information on labels,
• Insert new paragraphs 4.12.5. and 4.12.6. on international insert and small infant support marks,
• Insert new paragraphs 5.4.4. and 5.4.5. defining international insert and small infant support marks,
• Amend para. 6.2.1.1. to clarify insert and small infant support requirements,
• Amend para. 6.2.6. to reference user inflatable elements,
• Insert new paragraph 6.6.4.1.9. on dynamic testing with Supplemental Restraint Systems,
• Insert new paragraph 6.9. on provisions for electronics including battery removability, low battery voltage reminders, and vehicle battery connection warnings,
• Amend paragraphs 14.3.1. and 14.4.1. to include insert information in size range declarations,
• Insert new paragraph 16.18. on transitional provisions applicable from entry into force through 1 September 2029,
• Insert new paragraphs 3. and 4. in Annex 2 on insert and small infant support mark arrangements.

This document raises concerns regarding identification of child restraint systems through type approval numbers. Multiple brand names are marketed under single type approval numbers, creating market confusion and hampering consumer choice. Products with identical type approval numbers but variations in plastic parts have been identified and failed frontal impact testing. Proposed measures include limiting brand names per type approval number to five maximum, adding manufacturer names to type approval labels, and establishing a publicly accessible database of type approval information.

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:

• Insert new paragraphs 2.64. to 2.xx. on electronic components,
• Amend para. 3.2.1. to require technical descriptions including overview of Supplemental Restraint Systems,
• Insert new paragraphs 4.7.5. and 4.7.6. on international insert and small infant support marks,
• Renumber paragraphs 4.12. (second one), 4.12.1. to 4.12.4., and 4.13. as 4.13., 4.13.1. to 4.13.4., and 4.14.,
• Amend para. 4.12. to clarify insert information on labels,
• Insert new paragraphs 4.12.5. and 4.12.6. on international insert and small infant support marks,
• Insert new paragraphs 5.4.4. and 5.4.5. defining international insert and small infant support marks,
• Amend para. 6.2.1.1. to clarify insert and small infant support requirements,
• Amend para. 6.2.6. to reference user inflatable elements,
• Insert new paragraph 6.6.4.1.9. on dynamic testing with Supplemental Restraint Systems,
• Insert new paragraph 6.9. on provisions for electronics including battery removability, low battery voltage reminders, and vehicle battery connection warnings,
• Amend paragraphs 14.3.1. and 14.4.1. to include insert information in size range declarations,
• Insert new paragraph 16.18. on transitional provisions applicable from entry into force through 1 September 2029,
• Insert new paragraphs 3. and 4. in Annex 2 on insert and small infant support mark arrangements.

This document raises concerns regarding identification of child restraint systems through type approval numbers. Multiple brand names are marketed under single type approval numbers, creating market confusion and hampering consumer choice. Products with identical type approval numbers but variations in plastic parts have been identified and failed frontal impact testing. Proposed measures include limiting brand names per type approval number to five maximum, adding manufacturer names to type approval labels, and establishing a publicly accessible database of type approval information.

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:

• Insert new paragraphs 2.64. to 2.xx. on electronic components,
• Amend para. 3.2.1. to require technical descriptions including overview of Supplemental Restraint Systems,
• Insert new paragraphs 4.7.5. and 4.7.6. on international insert and small infant support marks,
• Renumber paragraphs 4.12. (second one), 4.12.1. to 4.12.4., and 4.13. as 4.13., 4.13.1. to 4.13.4., and 4.14.,
• Amend para. 4.12. to clarify insert information on labels,
• Insert new paragraphs 4.12.5. and 4.12.6. on international insert and small infant support marks,
• Insert new paragraphs 5.4.4. and 5.4.5. defining international insert and small infant support marks,
• Amend para. 6.2.1.1. to clarify insert and small infant support requirements,
• Amend para. 6.2.6. to reference user inflatable elements,
• Insert new paragraph 6.6.4.1.9. on dynamic testing with Supplemental Restraint Systems,
• Insert new paragraph 6.9. on provisions for electronics including battery removability, low battery voltage reminders, and vehicle battery connection warnings,
• Amend paragraphs 14.3.1. and 14.4.1. to include insert information in size range declarations,
• Insert new paragraph 16.18. on transitional provisions applicable from entry into force through 1 September 2029,
• Insert new paragraphs 3. and 4. in Annex 2 on insert and small infant support mark arrangements.

This document raises concerns regarding identification of child restraint systems through type approval numbers. Multiple brand names are marketed under single type approval numbers, creating market confusion and hampering consumer choice. Products with identical type approval numbers but variations in plastic parts have been identified and failed frontal impact testing. Proposed measures include limiting brand names per type approval number to five maximum, adding manufacturer names to type approval labels, and establishing a publicly accessible database of type approval information.