GRPE may wish to consider the draft Framework Document on Vehicle Whole-Life Compliance (ECE/TRANS/WP.29/2021/148), to develop elements to improve the draft proposal to be considered by the IWG on Periodic Technical Inspection (PTI) and WP.29.
| GRPE-86-05 | Particulate Number PTI in Switzerland |
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| GRPE-86-30 | Periodic Technical Inspection: Particle Number (PN) Measurements |
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| GRPE-86-39 | PTI : developments in the Netherlands with regard to checking vehicle emissions |
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| GRPE-86-43 | 1997 Agreement (Periodical Technical Inspections): Vehicle whole-life compliance - Proposal to amend |
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| WP.29/2021/148 | Proposal for a Framework Document on Vehicle Whole-Life Compliance |
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| GRPE-86-39 | PTI : developments in the Netherlands with regard to checking vehicle emissions | |
| WP.29/2021/148 | Proposal for a Framework Document on Vehicle Whole-Life Compliance |