UN R154: Proposal for a new supplement to the original version and 01 series of amendments
Reference Number: GRPE-83-12
This document aims to:
• harmonize the KCO2 family concept from UN GTR15 Amendment 6 with this Regulation.
• harmonize the correction of CO2 results against target speed in Level 1A with Level 1B and the most stringent
Level 2.
• delete correction criterion c as it is no longer needed.
• propose a clarification and specification in the ATCT family criteria.
UN R154: proposal for amendment to original series of amendments
Reference Number: GRPE-83-13
This document aims to clarify OBD monitoring requirements for combustion-ignition engines with regard to Level 1A and Level 1B. The modifications to the current text of the Regulation are marked in bold for new or strikethrough for deleted characters.