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50. The expert from EC presented ECE/TRANS/WP.29/GRSG/2019/19 proposing to update the provisions on frontal underrun protection to be approved as integrated part of the vehicle, and to allow more a rounded shape of cabs for better aerodynamic performance. The expert from OICA introduced GRSG-117-36 highlighting the need for keeping exceptions for vehicles of Category G and proposed to cover the issue of the scope in a separate proposal.
51. Following detailed technical discussions and adjustment of language used (GRSG-117-55), GRSG agreed to submit it to WP.29 and AC.1 as proposal for 01 series of amendments to UN Regulation No. 93 for consideration at their June 2020 sessions and thus providing for reconsideration by GRSG at its 118th session.
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GRSG/2019/19 | UN R93: Proposal for amendments
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UN R93: Proposal for amendments
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Reference Number: GRSG/2019/19
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Proposal to update Part III of UN R93 to enable approval of truck cabs where the front underrun protection is integrated in the motor vehicle (in order to improve aerodynamic performance). This proposal would define the forward reference point as being the same transverse location where the force is applied. This results in FUPs where (in the case of cab fronts that are curved) at least 400 mm must be maintained along the front contour of the cab, instead of the foremost point. The proposal includes transitional provisions from 1 September 2020.
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Submitted by: EC
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Document date: 18 Jul 19
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Document status: Superseded
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Relevant to
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View full document file for more information
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GRSG-117-36 | UN R93: Comments on ECE/TRANS/WP.29/GRSG/2019/19
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UN R93: Comments on ECE/TRANS/WP.29/GRSG/2019/19
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Reference Number: GRSG-117-36
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Proposal to modify the scope and transitional provisions of the proposal concerning aerodynamic cabs.
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Submitted by: OICA
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Document date: 10 Oct 19
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Relevant to
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View full document file for more information
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GRSG-117-55 | Proposal based on GRSG-117-48
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Proposal based on GRSG-117-48
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Reference Number: GRSG-117-55
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Revisions to the proposal to update Part III of UN R93 to enable approval of truck cabs where the front underrun protection is integrated in the motor vehicle (in order to improve aerodynamic performance). The proposal includes transitional provisions from 1 November 2025.
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Submitted by: EC
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Document date: 10 Oct 19
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Document status: Superseded
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Relevant to
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View full document file for more information
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