| WP.29-172-22 | Report to WP.29 about results of the 7th meeting of Informal Group on Periodical Technical Inspections | |
| WP.29/2017/93 | Proposal for a new Rule No. 3 on Periodical Technical Inspections of motor vehicles using Compressed Natural Gas and/or Liquefied Natural Gas in their propulsion system | |
| WP.29-172-19 | Proposal for Rule No. 4 on safety requirements for hybrid and electric vehicles | |
| WP.29/2017/92 | Proposal for amendments to the 1997 Agreement | |
| WP.29/2017/92/Corr.1 | 1997 Agreement: Corrigendum to the proposal WP.29/2017/92 |