7.4.1.
Proposals for a new UN Rule [No. 3] on Periodical Technical Inspections of motor vehicles using Compressed Natural Gas (CNG), Liquefied Petroleum Gas (LPG) and/or Liquefied Natural Gas (LNG) in their propulsion system
23.
Establishment of new Rules annexed to the 1997 Agreement

178. No further supplementary information was provided beyond agenda item 7.4. (see paras. 102 – 104 above)

WP.29-175-19 | 1997 Agreement: Quorum, Consideration and Voting by AC.4
WP.29/2017/135 | Proposal for a draft UN Rule No. [4] on safety requirements for hybrid and electric vehicles