| GRE/2015/40 | Proposal for Supplement 18 to the 01 series of amendments to Regulation No. 53 | |
| GRE/2015/42 | Proposal for Supplement 18 to the 01 series of amendments to Regulation No. 53 | |
| GRE/2015/39 | Proposal for Supplement 18 to the 01 series of amendments to Regulation No. 53 | |
| GRE/2015/41 | Proposal for a Supplement to the 01 series of amendments to Regulation No. 53 | |
| GRE-74-09 | Revised proposal for amendments to Regulation No. 53 | |
| GRE-74-09 | Revised proposal for amendments to Regulation No. 53 |