Document Number WP.29/2017/66
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Document title Proposal for Supplement 1 to the original version of Regulation No. 143
Date 5 Apr 2017

Proposal to restrict the application of CO2 specific emission limits only to NMHC and CO emissions (back-to-back comparison of NOx and PM to apply under the regulation in any case). The proposal also aligns the text where applicable with the intent of paragraph 2.3.15.: “R49 original emission limits” means the emission limits as defined in Regulation No. 49 to which the original engine system was approved."

Source(s) Add source(s) of document, if applicable
Status Adopted
Rulemaking area(s)
Regulatory impact
Original text | Supplement 1
Meeting(s)
Related documents
GRPE/2017/4 Proposal for a Supplement to the draft Regulation on uniform provisions concerning the approval of Heavy Duty Dual-Fuel Engine Retrofit Systems (HDDF-ERS) to be installed on heavy duty diesel engines and vehicles (Superseded)
GRPE-74-25 Proposal for amendments to ECE/TRANS/WP.29/GRPE/2017/4 on Heavy Duty Dual-Fuel Engine Retrofit Systems (Superseded)
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