103. Submitted for consideration and vote, the proposal for Amendment 3 to draft UN GTR on Worldwide Heavy-Duty Certification procedure (WHDC) (ECE/TRANS/WP.29/2014/84, ECE/TRANS/WP.29/2014/85, ECE/TRANS/WP.29/AC.3/29, ECE/TRANS/WP.29/AC.3/38) was established in the UN Global Registry on 12 March 2015 by consensus vote of the following Contracting Parties present and voting: Australia, Canada, China, European Union (voting for Cyprus, Finland, France, Germany, Hungary, Italy, Lithuania, Luxembourg, Netherlands, Romania, Slovakia, Slovenia, Spain, Sweden and the United Kingdom), India, Japan, Norway, Republic of Korea, Republic of Moldova, Russian Federation, South Africa and United States of America.

104. The representative of the United States of America reported on the activities of his country on correlation verification between the two test procedures (in Annexes IX and X). He reported that, at this point, the EPA had completed the powertrain testing according to the procedures in the UN GTR, noting that additional work would be needed. He stated that appropriate support from manufacturers was critical for completing a proper correlation assessment and for future certification and type approval activities, as the Hardware In the Loop Simulation (HILS) testing required a significant amount of proprietary information. He added that in order for the procedure to be transparent and reproducible, the manufacturers would need to commit to providing support information including digital, analog and CAN signals, as well as the required hardware. He concluded that EPA would need to complete a full correlation study before undertaking the implementation process to address the identified questions. He expected this work to be done through the efforts at GRPE. He was confident that the powertrain procedure could produce repeatable and representative results.

[GAR note pending publication of official session report: Amendment 3 (documents WP.29/2014/84 and WP.29/2014/85) is unanimously adopted by the Contracting Parties present, including EU, USA, Japan, China, and others. US EPA notes a number of open issues concerning discrepancies in results achieved during extensive testing which will need to be resolved in the next phase of development. Nonetheless, the US reaffirms their belief that the test methodology is essentially sound and votes to adopt the amendment.]