| GRB-67-09 | UN R138: Proposal for Supplement 2 to the 01 series of amendments | |
| GRB-67-09 | UN R138: Proposal for Supplement 2 to the 01 series of amendments | |
| GRB/2017/7 | Proposal for a new Supplement to the 01 series of amendments of Regulation No. 138 | |
| WP.29/2017/107 | Draft General Guidelines for United Nations regulatory procedures and transitional provisions in UN Regulations |