| TRANS/WP.29/GRB/2001/9 - (Russian Federation): Proposal for Draft Amendments to Regulation No. 59 |
| TRANS/WP.29/GRB/2001/7 - (Russian Federation) Proposal for Draft Amendments to Regulation No. 59 (Replacing silencing systems) |
| TRANS/WP.29/GRB/2001/6 - (Germany) Proposal for Draft Amendments to Reg. No. 51 (Noise of M and N categories of vehicles) |
| TRANS/WP.29/GRB/2001/5/Add.1 - (Secretariat) Replies to the Questionnaire concerning the Development of Regulation No. 51 |
| TRANS/WP.29/GRB/2001/5 - (Secretariat) Replies to the Questionnaire concerning the Development of Regulation No. 51 |
| TRANS/WP.29/GRB/2001/4 - (Netherlands) Ame to Reg. 51 (Noise of M and N categories of vehicles) |
| TRANS/WP.29/GRB/2001/3 - (Germany) The New Draft Regulation: Uniform Provisions Concerning the Approval of Tyres with Regard to Rolling Sound Emissions (Document TRANS/WP.29/GRB/2000/4) |
| TRANS/WP.29/GRB/2001/2/Rev. 1 - (ISO) Proposal for a Measuring Procedure to be Incorporated into Regulation No. 51 |
| TRANS/WP.29/GRB/2001/2 - (ISO) Proposal for a Measuring Procedure to be Incorporated into Regulation No. 51 (Noise of M and N categories of vehicles) |
