| Download: WP.29/1154/Rev.1 | from UNECE: | .pdf format | .docx format |
| 14.4. | Proposal for Amendment 1 to UN GTR No. 18 (On-Board Diagnostic (OBD) systems for L-category vehicles) |
| 19.18. | UN GTR No.18 (On-board diagnostics for two- or three-wheeled motor vehicles) |