18 June 2017 Proposal for Rule No. 4 on safety requirements for hybrid and electric vehicles WP.29-172-19	WP.29-172-19	2017-06-18
9 June 2017 Draft inspection requirements for hybrid and electric vehicles PTI-07-03	PTI-07-03	2017-06-09
19 June 2017 Report to WP.29 about results of the 7th meeting of Informal Group on Periodical Technical Inspections WP.29-172-22	WP.29-172-22	2017-06-19
5 September 2017 Proposal for a draft UN Rule No. [4] on safety requirements for hybrid and electric vehicles WP.29/2017/135	WP.29/2017/135	2017-09-05
5 September 2017 Minutes of the 7th PTI informal group session PTI-07-05	PTI-07-05	2017-09-05
31 October 2017 Minutes of the 8th PTI informal group session PTI-08-06	PTI-08-06	2017-10-31
14 November 2017 PTI: Report to WP.29 about results of the 8th meeting of Informal Group on Periodical Technical Inspections WP.29-173-06	WP.29-173-06	2017-11-14
5 January 2020 UN Rule 4: Proposal for an amendment WP.29/2020/40	WP.29/2020/40	2020-01-05