Document Number GRVA-WS-CS-01-02
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Document title Draft provisions for vehicle type based on another vehicle type (multistage vehicles)
Date 13 Feb 2026

Draft specific guidance for vehicle types that are based on another vehicle type. This specific guidance is without prejudice to national procedures (e.g. as defined in the R155 methods and criteria) and applies to various use cases, such as vehicles developed, produced and/or sold in collaboration with another manufacturer, completed and transformed vehicles, “multi-stage” vehicles, etc.

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Related documents
GRVA-WS-CS-01-05 UN R155: Multistage vehicle specific guidance
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