This proposal would correct editorial errors detected in GTR 4 during the transposition of the GTR provisions into UN Regulation 49 (6 series of amendments).

Notifications concerning the establishment of UN Global Technical Regulations and the status of their application among the Contracting Parties to the 1998 Global Agreement.

Notification that the Government of Japan is considering the details of the test procedures of the Worldwide Harmonized Heavy-duty Vehicle Emissions Certification Procedures (GTR No. 4) in order to decide whether to transpose the provisions into its national regulations.

Corrections to paragraph cross-references within GTR No.4 which were identified during transposition of the GTR into UN Regulation 49.

Report of the informal group session held in Tokyo during March 2012. This group is working to add provisions for heavy-duty hybrid vehicles to GTR No. 4 (WHDC).

Overview of TU Graz and TNO evaluation of hardware-in-the-loop simulation methodologies covering the test cycle and vehicle related parameters, harmonisation with CO2 test methods, inclusion of power take-off, and worldwide harmonized vehicle cycle weighting factors.

Progress report on the effort to establish provisions for heavy-duty hybrid vehicles in GTR No. 4, prepared for presentation to the June session of the Working Party on Pollution and Energy (GRPE).

Progress report on the effort to introduce heavy-duty hybrid emissions and related performance requirements into GTR No. 4.

Presentation on the status of work on the introduction of provisions for heavy-duty hybrid vehicle emissions and power consumption testing into GTR No. 4

GRPE-adopted corrections to paragraph cross-references within GTR No.4 which were identified during transposition of the GTR into UN Regulation 49.

Voting table prepared for the November session of the World Forum’s 1958 Agreement general session. The Executive Committee of the 1958 Agreement will consider amendments to GTR No. 4 and GTR No. 5.