Proposal for Supplement 4 to the 07 series of amendments to Regulation No. 83
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UN Regulations Nos. 49 and 83 include provisions for a “driver inducement system” that alerts drivers of low reagent levels (urea, etc.) critical to correct emissions control performance and eventually prevents vehicle operation if the reagent tank is empty. Under UN R49 (para. 5.2), rescue, police, and other emergency/special use vehicles are exempted from this requirement. This proposal would extend the same treatment under UN R83. The proposal also makes several corrections and clarifications (see document GRPE/2016/11) with respect to extensions of approval, reduction in efficiency of the catalytic converter with respect to emissions of NMHC and NOx, and OBD.

Reference Number: WP.29/2016/109
Date: 2 September 2016
Proposal Status: Adopted text published
Related Documents:
GRPE/2016/10 | Proposal for a new Supplement to the 06 and 07 series of amendments to Regulation No. 83
GRPE/2016/11 | Proposal for a new Supplement to the 06 and 07 series of amendments to Regulation No. 83