Proposal to update the on-board diagnostics (OBD) requirements of UN R83 in line with technical progress and to update the reference fuels in the 06 series of amendments in line with changes introduced in the 07 series of amendments to UN R83.

Proposal to update the on-board diagnostics (OBD) requirements, to delete the definition of “vehicles designed to fulfil specific social needs” in line with the Euro 6 stages of European Union Regulation (EC) No. 715/2007 and implementation Regulation (EC) No. 692/2008, and to clarify the wording of transitional provisions and align them with the General Guidelines for UN Regulatory Procedures and Transitional Provisions in UN Regulations (ECE/TRANS/WP.29/1044/Rev.1). In addition, the proposed wording would allow Contracting Parties not to accept UN type-approvals if the requirements specified in the 07 series of amendments are not met.