11 February 2019 Minutes of the 12th PTI informal group session PTI-12-04	PTI-12-04	2019-02-11
17 January 2020 GRPE priority emission items list GRPE-80-04/Rev.3	GRPE-80-04/Rev.3	2020-01-17
20 June 2019 Minutes of the 14th PTI informal group session PTI-14-06/Rev.1	PTI-14-06/Rev.1	2019-06-20
21 June 2019 PTI informal group report to WP.29 on its 14th session WP.29-178-13	WP.29-178-13	2019-06-21
8 November 2019 PTI informal group: Report of the 15th session WP.29-179-20	WP.29-179-20	2019-11-08
11 November 2019 General Overview of In-Service Compliance Assessment (Russia) PTI-16-03	PTI-16-03	2019-11-11
12 November 2019 General overview of in-service compliance assessment WP.29-179-22	WP.29-179-22	2019-11-12
14 February 2020 Draft agenda for the 17th PTI informal group session PTI-17-01/Rev.5	PTI-17-01/Rev.5	2020-02-14
14 February 2020 Minutes of the 16th PTI informal group session PTI-16-04/Rev.1	PTI-16-04/Rev.1	2020-02-14
24 June 2020 Status report of the PTI informal working group WP.29-181-11	WP.29-181-11	2020-06-24
4 February 2021 Agenda for the 19th PTI informal group session PTI-19-01	PTI-19-01	2021-02-04
23 February 2021 Minutes of the 19th PTI informal group session PTI-19-05	PTI-19-05	2021-02-23
1 March 2021 Agenda for the 20th PTI informal group session PTI-20-01	PTI-20-01	2021-03-01
9 March 2021 Report to WP.29 about results of the 19th and 20th meetings of the Informal Working Group on Periodical Technical Inspections WP.29-183-18	WP.29-183-18	2021-03-09
12 April 2021 Lifetime compliance and PTI, including automated vehicles PTI-WLC-02-01	PTI-WLC-02-01	2021-04-12
12 April 2021 Comments on the proposal for work on in-service compliance, including automated vehicles (OICA) PTI-WLC-02-02	PTI-WLC-02-02	2021-04-12
20 April 2021 Agenda for the 21st PTI informal group session PTI-21-01	PTI-21-01	2021-04-20
13 May 2021 Minutes of the 21st PTI informal group session PTI-21-03	PTI-21-03	2021-05-13
13 May 2021 Agenda for the 22nd PTI informal group session PTI-22-01	PTI-22-01	2021-05-13
14 May 2021 Draft updated terms of reference for the PTI informal group PTI-22-02	PTI-22-02	2021-05-14
26 May 2021 Framework document on vehicle whole-life compliance PTI-19-02/Rev.6	PTI-19-02/Rev.6	2021-05-26
26 May 2021 Report of the 22nd PTI informal group session PTI-22-06	PTI-22-06	2021-05-26
9 June 2021 Revised draft proposal for PTI informal group terms of reference PTI-22-02/Rev.1	PTI-22-02/Rev.1	2021-06-09
18 June 2021 PTI informal group: Report to WP.29 about results of the 21st, 22nd and 23rd meetings WP.29-184-08	WP.29-184-08	2021-06-18
24 June 2021 Draft Terms of Reference of the Informal Working Group on Periodical Technical Inspections WP.29-184-09/Rev.1	WP.29-184-09/Rev.1	2021-06-24
27 July 2022 Proposal for amendments to UN Regulations Nos. 148, 149 and 150 (CITA) GRE/2022/13	GRE/2022/13	2022-07-27
1 June 2022 PTI : developments in the Netherlands with regard to checking vehicle emissions (Netherlands) GRPE-86-39	GRPE-86-39	2022-06-01
13 October 2022 Unique Identifier – the impact in periodic and roadside inspection (CITA) GRE-87-07	GRE-87-07	2022-10-13
11 November 2022 PTI informal group report to WP.29 WP.29-188-17	WP.29-188-17	2022-11-11
7 February 2023 Agenda for the 29th PTI informal group session PTI-29-01/Rev.1	PTI-29-01/Rev.1	2023-02-07
14 February ACEA Roadworthiness Package Study (OICA) PTI-34-02/Rev.1	PTI-34-02/Rev.1	2024-02-14
12 February PTI informal group working draft terms of reference for 2024-27 PTI-34-05	PTI-34-05	2024-02-12
23 April PTI informal group: Terms of Reference for 2024-27 PTI-35-02	PTI-35-02	2024-04-23
25 June Terms of Reference of the Informal Working Group on Periodical Technical Inspections WP.29-193-07	WP.29-193-07	2024-06-25