UN R39: Proposal for Supplement 2 to the 01 Series of amendments
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UN R39 allows for odometer units in miles. This proposal would clarify requirements for systems that can switch the odometer units between kilometers and miles to ensure that only one unit of measurement for total distance is used at a time.

Reference Number: GRSG/2021/7
Origin: France
Date: 29 January 2021
Proposal Status: Formal GR review
Related Documents:
GRSG-119-12 | UN R39: Suggestion for an amendment
GRSG-121-35 | UN R39: Proposal for amendments to document GRSG/2021/17