GAR | GRSG/2021/30

UN R121: Proposal for Supplement 4 to the 01 series of amendments

Document GRSG/2021/30

30 July 2021

122nd GRSG session (12-15 Oct 2021)

Proposal to apply the same tell-tale requirements for tyre pressure refill systems (TPRS) and central tyre inflation systems (CTIS) as already in place for tyre pressure monitoring systems (TPMS)

Submitted by Netherlands

Status: Superseded

186th WP.29 session (7-11 Mar 2022)

4.8. | Consideration of draft amendments to existing UN Regulations submitted by GRSG

82. The World Forum considered draft amendments under agenda items 4.8.1 and 4.8.14, corrected in the title of ECE/TRANS/WP.29/2022/22 the number of the supplement to “5” and recommended their submission to AC.1 for voting.

4.8.2. | Proposal for Supplement 4 to the 01 series of amendments of UN Regulation No. 121 (Identification of controls, tell-tales and indicators)

122nd GRSG session (12-15 Oct 2021)

12. | UN Regulation No. 121 (Identification of controls, tell-tales and indicators)

89. The expert from the Netherlands on behalf of the GRBP Task Force on Tyre Pressure Monitoring System and Tyre Installation (TF TPMSTI) presented document ECE/TRANS/WP.29/GRSG/2021/30, a proposal for supplement 4 to the 01 series of amendment of UN Regulation No. 121. The experts from Germany, Japan, United Kingdom, Sweden, Italy, France, the European Commission and OICA all supported this proposal.

90. The Chair of GRSG endorsed document ECE/TRANS/WP.29/GRSG/2021/30 and requested its submission to WP.29 and AC.1 for voting at their March 2022 sessions.

Reference Number:	WP.29/2025/2
Meeting Session(s):	195th WP.29 session (3-7 Mar 2025)
Document date:	24 Dec 24
Document status:	Formal WP.29 review
Regarding:	Communications/Connectivity

Reference Number:	EVE-79-05
Meeting Session(s):	79th EVE session (17 Dec)
Document date:	23 Dec 24
Regarding:	GTR No. 21 EV Power Determination \| GTR No. 22 EV Battery Durability \| HD EV Battery Durability

Reference Number:	VIAQ-30-09
Meeting Session(s):	30th VIAQ session (11 Oct)
Document date:	23 Dec 24
Regarding:	MR 3: VIAQ

Reference Number:	WT-64-03
Meeting Session(s):	64th WT session (16 Dec)
Document date:	22 Dec 24
Regarding:	UN R117 Tire Noise, Wet Adhesion, and Rolling Resistance

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