UN R21: Proposal for Supplement 4 the 01 series of amendments
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Proposal to clarify rounded-edge requirements for roof-opening roof devices.

Reference Number: WP.29/2019/106
Date: 28 August 2019
Proposal Status: Adopted
Related Documents:
GRSP-65-03 | UN R21: Proposal for supplement 04 to the 01 series of amendments