| PTI-04-02 | Proposal to amend UN Rule No. 2 | |
| PTI-04-03 | Draft proposal to amend the 1997 Agreement on Periodical Technical Inspections | |
| PTI-04-04 | Accession by the European Community to the UNECE 1997 Agreement | |
| PTI-04-05 | Schedule for development of the 1997 Vienna Agreement on Periodical Technical Inspections | |
| PTI-04-10 | Proposal for amendments to UN Rule No. 2 | |
| PTI-04-09 | Proposal for amendments to UN Rule No. 1 | |
| PTI-04-08 | Working draft of the revised 1997 Agreement pursuant to the 4th PTI informal group session | |
| PTI-04-03 | Draft proposal to amend the 1997 Agreement on Periodical Technical Inspections | |
| PTI-04-01 | Draft agenda for the 4th PTI informal group session | |
| PTI-04-09 | Proposal for amendments to UN Rule No. 1 |