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.

Proposal from the European Union to provide clarifications and correct errors in the 06 and 07 series of amendments to Regulation No. 83.

Proposal for a new regulation to enable type approval of dual-fuel retrofit systems to be installed on already approved and in service heavy duty diesel engines and vehicles.

Proposal to establish requirements for motorcycle OBD systems. This proposal contains draft text in square brackets for which GRPE decisions will be required.