UN Regulation No. 9
Three-Wheeled Cycle Noise
Series of Amendments, Supplements, and Corrigenda

This page lists changes to UN R9 by series of amendments, supplements, and corrigenda. A new series occurs when there is a material change in requirements such that an approval granted prior to the change is not equivalent to an approval given after the change. A supplement generally improves the clarity of the regulation; however, a supplement may also involve changes to the scope (range of products) covered by the regulation. A corrigenda is a correction to the text.
07 series of amendments | Supplement 1 (2016)
7 1
06 series of amendments (1999)
6
06 series of amendments | Corrigendum 1 (1999)
6 1
06 series of amendments | Supplement 1 (2006)
6 1
07 series of amendments (2013)
7
07 series of amendments | Supplement 2 (2017)
7 2
07 series of amendments | Supplement 3 (2017)
7 3
08 series of amendments (2019)
8
08 series of amendments | Supplement 1 (2020)
8 1
08 series of amendments | Supplement 2 (2022)
8 2