Proposal for amendments to Regulation No. 54
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Clarifications and corrections to document GRRF/2014/26 which proposes to alter the marking requirements of UN R54 to replace the PSI Index by the inflation pressure in kilopascals (“kPa”) and to add the possibility to put the “LT” marking as a prefix or suffix to align the requirements with current practice for C2 tyres with metric size designation.

Reference Number: GRRF-78-12
Origin: ETRTO
Date: 10 September 2014
Proposal Status: Superseded
Related Documents:
GRRF/2014/26 | Proposal for amendment to Regulation No. 54
GRRF/2015/27 | Proposal for amendment to Regulation No. 54 and Regulation No. 117
Working Party on Brakes and Running Gear | Session 78 | 16-19 Sep 2014

33. GRRF agreed to defer consideration of ECE/TRANS/WP.29/GRRF/2014/26 and GRRF‑78‑12 to its February 2015 session.