87. The representative of the Russian Federation, Co-Chair of the IWG on PTI, presented ECE/TRANS/WP.29/2017/134 that proposes the establishment of a new Rule on Periodical Technical Inspections of motor vehicles using Compressed Natural Gas (CNG) and/or Liquefied Natural Gas (LNG) in their propulsion system, that would be annexed to the 1997 Agreement. He also introduced informal document WP.29-173-12 amending the proposal by adding vehicles using Liquefied Petroleum Gas (LPG). Some Contracting Parties indicated that they were still in the process of evaluating the proposal.

88. The representative of the Russian Federation, Co-Chair of the IWG on PTI, presented ECE/TRANS/WP.29/2017/135 that proposes the establishment of a new Rule on Periodical Technical Inspections, regarding minimum safety inspection requirements for hybrid and electric motor vehicles, to be annexed to the 1997 Agreement. Some Contracting Parties indicated that they were still in the process of evaluation of the proposal.

89. WP.29 recommended the submission of the two proposals to AC.4 for voting, noting that some European Contracting Parties would support, in principle, the proposals but felt not in the position to adopt these proposals due to possible inconsistencies with European Directives on PTI on these matters (not specifically addressing additional test items for gas fuelled vehicles and hybrid vehicles).