| WP.29/2021/53 | GTR 9: Proposal for Amendment 3 | |
| WP.29/2021/54 | GTR 9: Final progress report on the development of Amendment 3 | |
| WP.29/1157/Add.1 | GTR 9: Statement on Amendment 3 decision | |
| WP.29/1157/Add.2 | GTR 9: Statement on Amendment 3 decision | |
| WP.29/1158/Add.1 | WP.29: Changes to the provisional agenda for the 184th (June 2021) session | |
| WP.29/2021/83 | GTR 9: Proposal to revise the authorization to develop amendments |