Information on the goals and objectives of the ASEP informal group can be found on its Terms of Reference wiki page. The ASEP II informal group has also established wiki pages for correspondence regarding the drafting of amendments to UN R51:
| Document removed. |
| Reference Number: ASEP II-01-05/Rev.1 |
| Meeting Sessions: 1st ASEP II session (7-8 Nov 2016) |
| Document date: 10 Jan 17 |
| Click here to view the full document file |
| Presentation of Supplement 2 to the 03 series of amendments to UN Regulation No. 51 |
| Reference Number: ASEP II-02-02 |
|
Draft presentation on the amendments developed by the informal working group on Additional Sound Emission Provisions. |
| Meeting Sessions: 2nd ASEP II session (13-15 Feb 2017) |
| Document date: 09 Feb 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Draft report of the ASEP informal group to the 65th GRB session |
| Reference Number: ASEP II-02-03 |
| Meeting Sessions: 2nd ASEP II session (13-15 Feb 2017) |
| Document date: 09 Feb 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Draft agenda for the 2nd ASEP-II informal group session |
| Reference Number: ASEP II-02-01/Rev.1 |
| Meeting Sessions: 2nd ASEP II session (13-15 Feb 2017) |
| Document date: 12 Feb 17 |
| Click here to view the full document file |
| Provisional attendance list for the 2nd ASEP II informal group session |
| Reference Number: ASEP II-02-04 |
| Meeting Sessions: 2nd ASEP II session (13-15 Feb 2017) |
| Document date: 14 Feb 17 |
| Click here to view the full document file |
| ASEP II informal group revised proposal for Supplement 2 to the 03 series of amendments to Regulation No. 51 |
| Reference Number: ASEP II-02-05 |
|
Updated version of document GRB/2017/2 pursuant to discussions during the 2nd ASEP II informal group session. |
| Meeting Sessions: 2nd ASEP II session (13-15 Feb 2017) |
| Document date: 14 Feb 17 |
| Document status: Superseded |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| OICA presentation on stable acceleration variation |
| Reference Number: ASEP II-02-06 |
|
OICA proposal to provide a clearer and more precise definition for “stable acceleration”. The definition introduced in document GRB/2017/02 is specified as "when the acceleration from line AA’ to PP’ has a low variation to the acceleration from line PP’ to BB’.” The term “low variation” is imprecise and so OICA proposes the wording “when the acceleration ratio a(PP’-BB’)/a(AA’-BB’) is lower than 1,2.” |
| Submitted by: OICA |
| Meeting Sessions: 2nd ASEP II session (13-15 Feb 2017) |
| Document date: 14 Feb 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Problems with Noise-Emissions of M1 and N1 Vehicles / NORESS and possible Solutions |
| Reference Number: ASEP II-02-09 |
|
Presentation of concerns and possible responses through GRB regarding vehicle noise, especially related to system tampering and vehicle modifications. |
| Submitted by: BMV |
| Meeting Sessions: 2nd ASEP II session (13-15 Feb 2017) |
| Document date: 14 Feb 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Revision of UN R51 ASEP: OICA input on consideration of future steps |
| Reference Number: ASEP II-02-08 |
|
Discussion of current issues related to vehicle noise levels, especially given the availability of affordable electronic devices that enable car owners to artificially increase vehicle sound output. |
| Submitted by: OICA |
| Meeting Sessions: 2nd ASEP II session (13-15 Feb 2017) |
| Document date: 13 Feb 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Draft agenda for the 3rd ASEP II informal group session |
| Reference Number: ASEP II-03-01 |
| Meeting Sessions: 3rd ASEP II session (10-12 May 2017) |
| Document date: 21 Apr 17 |
| Click here to view the full document file |
| Agenda for the first session of the 2nd ASEP informal group |
| Reference Number: ASEP II-01-01/Rev.2 |
| Meeting Sessions: 1st ASEP II session (7-8 Nov 2016) |
| Document date: 07 Nov 16 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Revised presentation on GRB/2017/2 including ASEP II informal group updates |
| Reference Number: ASEP II-02-07 |
|
Presentation updated to include revisions to the working document GRB/2017/2 as agreed during the 2nd ASEP II informal group session to be presented during GRB-65 as an informal document amending the draft Supplement 2 to the 03 series of amendments to UN R51. |
| Meeting Sessions: 2nd ASEP II session (13-15 Feb 2017) |
| Document date: 05 May 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Vehicle noise standards system of China |
| Reference Number: ASEP II-02-10 |
| Submitted by: China |
| Meeting Sessions: 2nd ASEP II session (13-15 Feb 2017) |
| Document date: 05 May 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| ASEP: A Way to Analyse Methods |
| Reference Number: ASEP II-02-11 |
| Submitted by: France |
| Meeting Sessions: 2nd ASEP II session (13-15 Feb 2017) |
| Document date: 05 May 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| IMMA overview presentation of UN-R41.04 additional sound emission provisions (ASEP) |
| Reference Number: ASEP II-03-06 |
| Submitted by: IMMA |
| Meeting Sessions: 3rd ASEP II session (10-12 May 2017) |
| Document date: 10 May 17 |
| Relevant to: UN Regulation No. 41 | Motorcycle Noise |
| Click here to view the full document file |
| CLEPA input for the 3rd ASEP informal group meeting |
| Reference Number: ASEP II-03-05 |
| Submitted by: CLEPA |
| Meeting Sessions: 3rd ASEP II session (10-12 May 2017) |
| Document date: 10 May 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Document removed. |
| Reference Number: ASEP II-03-10 |
| Meeting Sessions: 3rd ASEP II session (10-12 May 2017) |
| Document date: 10 May 17 |
| Click here to view the full document file |
| Study of velocity x acceleration concept for ASEP |
| Reference Number: ASEP II-03-02 |
|
Presentation concerning vehicle noise relationship to speed and acceleration and other factors |
| Submitted by: JASIC |
| Meeting Sessions: 3rd ASEP II session (10-12 May 2017) |
| Document date: 10 May 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Background and concerns from China on ASEP theory and test method |
| Reference Number: ASEP II-03-03 |
| Submitted by: CATARC |
| Meeting Sessions: 3rd ASEP II session (10-12 May 2017) |
| Document date: 10 May 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| ASEP and Off-cycle testing principles |
| Reference Number: ASEP II-03-04 |
| Submitted by: France |
| Meeting Sessions: 3rd ASEP II session (10-12 May 2017) |
| Document date: 10 May 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Proposal for Supplement 2 to the 03 series of amendments to Regulation No. 51 (GRB/2017/yy/Rev.1) |
| Reference Number: ASEP II-03-14 |
| Meeting Sessions: 3rd ASEP II session (10-12 May 2017) |
| Document date: 10 May 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Proposal for Supplement 2 to the 03 series of amendments to Regulation No. 51 (GRB/2017/yy) |
| Reference Number: ASEP II-03-13 |
| Meeting Sessions: 3rd ASEP II session (10-12 May 2017) |
| Document date: 10 May 17 |
| Document status: Superseded |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| ASEP control range |
| Reference Number: ASEP II-03-07 |
| Meeting Sessions: 3rd ASEP II session (10-12 May 2017) |
| Document date: 11 May 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| ASEP sound box |
| Reference Number: ASEP II-03-08 |
| Meeting Sessions: 3rd ASEP II session (10-12 May 2017) |
| Document date: 11 May 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| ASEP informal group working draft proposal for Supplement 2 to the 03 series of amendments to Regulation No. 51 (GRB/2017/xx) |
| Reference Number: ASEP II-03-12 |
| Meeting Sessions: 3rd ASEP II session (10-12 May 2017) |
| Document date: 12 May 17 |
| Document status: Superseded |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| ASEP informal group working draft proposal for Supplement 2 to the 03 series of amendments to Regulation No. 51: Revision 1 (GRB/2017/xx/Rev.1) |
| Reference Number: ASEP II-03-12 |
| Meeting Sessions: 3rd ASEP II session (10-12 May 2017) |
| Document date: 12 May 17 |
| Document status: Superseded |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| ASEP informal group milestones |
| Reference Number: ASEP II-03-15 |
| Meeting Sessions: 3rd ASEP II session (10-12 May 2017) |
| Document date: 12 May 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Location of the 4th ASEP II informal group session |
| No reference number |
| Meeting Sessions: 4th ASEP II session (11-13 Jul 2017) |
| Document date: 09 Jun 17 |
| Click here to view the full document file |
| ASEP informal group working draft proposal for Supplement 2 to the 03 series of amendments to Regulation No. 51 |
| Reference Number: GRB/2017/xxx |
| Meeting Sessions: 3rd ASEP II session (10-12 May 2017) |
| Document date: 27 Jun 17 |
| Document status: Superseded |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Draft report of the first and second ASEP II informal group sessions |
| Reference Number: ASEP II-02-12/Rev.1 |
| Meeting Sessions: 2nd ASEP II session (13-15 Feb 2017) |
| Document date: 27 Jun 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Revision of GRB-65-24 |
| Reference Number: ASEP II-03-18 |
|
Modification of the proposal to enable indoor testing under UN R51 on vehicle noise. |
| Meeting Sessions: 3rd ASEP II session (10-12 May 2017) |
| Document date: 27 Jun 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Additional mass relative to mro: Relative change of L urban |
| Reference Number: ASEP II-03-17 |
| Meeting Sessions: 3rd ASEP II session (10-12 May 2017) |
| Document date: 27 Jun 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| GRB list of amendments to UN R51 03 series of amendments: Expert Group Meeting |
| Reference Number: ASEP II-03-09 |
| Meeting Sessions: 3rd ASEP II session (10-12 May 2017) |
| Document date: 27 Jun 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| ASEP 2007 databank |
| Reference Number: ASEP II-04-06 |
| Meeting Sessions: 4th ASEP II session (11-13 Jul 2017) |
| Document date: 06 Jul 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Draft agenda for the 4th ASEP II informal group session |
| Reference Number: ASEP II-04-01/Rev.2 |
| Meeting Sessions: 4th ASEP II session (11-13 Jul 2017) |
| Document date: 10 Jul 17 |
| Click here to view the full document file |
| Attendance list for the 4th ASEP II informal group session |
| Reference Number: ASEP II-04-10 |
| Meeting Sessions: 4th ASEP II session (11-13 Jul 2017) |
| Document date: 10 Jul 17 |
| Click here to view the full document file |
| ASEP alternative methods for indoor noise testing |
| Reference Number: ASEP II-04-07 |
| Meeting Sessions: 4th ASEP II session (11-13 Jul 2017) |
| Document date: 10 Jul 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Draft ASEP II informal group report on the development of additional sound emission provisions under UN R51 |
| Reference Number: ASEP II-04-08 |
| Meeting Sessions: 4th ASEP II session (11-13 Jul 2017) |
| Document date: 10 Jul 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Draft status report to GRB of the ASEP II informal group |
| Reference Number: ASEP II-04-09 |
| Meeting Sessions: 4th ASEP II session (11-13 Jul 2017) |
| Document date: 10 Jul 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| IMMA presentation of UN-R41.04 additional sound emission provisions (ASEP) |
| Reference Number: ASEP II-04-12 |
| Submitted by: IMMA |
| Meeting Sessions: 4th ASEP II session (11-13 Jul 2017) |
| Document date: 10 Jul 17 |
| Relevant to: UN Regulation No. 41 | Motorcycle Noise and UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Driving conditions and conclusions of China on ASEP test method |
| Reference Number: ASEP II-04-11 |
| Submitted by: CATARC |
| Meeting Sessions: 4th ASEP II session (11-13 Jul 2017) |
| Document date: 11 Jul 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Development Strategy for ASEP Revision 2: Development of a Physical Expectation Model Based on UN R51.03 Annex 3 Performance Parameters |
| Reference Number: ASEP II-04-02/Rev.1 |
| Submitted by: OICA |
| Meeting Sessions: 4th ASEP II session (11-13 Jul 2017) |
| Document date: 19 Jul 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Stationary noise measurements setup for ASEP 2017 |
| Reference Number: ASEP II-04-04/Rev.1 |
|
Measurement Setup Scheme for Stationary Sound Emission Test – Engine Proximity: Stationary Run-Up Measurement (SLOW run-up) from IDLE to Govern Engine Speed |
| Meeting Sessions: 4th ASEP II session (11-13 Jul 2017) |
| Document date: 19 Jul 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| ASEP data entry spreadsheet 2017 |
| Reference Number: ASEP II-04-03/Rev.1 |
| Meeting Sessions: 4th ASEP II session (11-13 Jul 2017) |
| Document date: 19 Jul 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Test program for a single vehicle for the development of ASEP |
| Reference Number: ASEP II-04-05 |
| Meeting Sessions: 4th ASEP II session (11-13 Jul 2017) |
| Document date: 19 Jul 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Logistical information for the 5th ASEP II informal group session |
| Reference Number: ASEP II-05-01 |
| Meeting Sessions: 5th ASEP II session (7-9 Nov 2017) |
| Document date: 21 Aug 17 |
| Click here to view the full document file |
| Participants list from the 4th ASEP II informal group session |
| Reference Number: ASEP II-04-14 |
| Meeting Sessions: 4th ASEP II session (11-13 Jul 2017) |
| Document date: 22 Aug 17 |
| Click here to view the full document file |
| ASEP 2017 databank |
| Reference Number: ASEP II-04-06/Rev.1 |
|
ASEP data file for 5-1-2 noise limits as of 13 June 2017. |
| Meeting Sessions: 4th ASEP II session (11-13 Jul 2017) |
| Document date: 22 Aug 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| ASEP 2017 databank |
| Reference Number: ASEP II-04-13 |
|
ASEP data file for Lurban noise limits as of 13 July 2017. |
| Meeting Sessions: 4th ASEP II session (11-13 Jul 2017) |
| Document date: 22 Aug 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| ISO proposal for indoor testing under UN R51 |
| Reference Number: ASEP II-05-07 |
| Submitted by: ISO |
| Meeting Sessions: 5th ASEP II session (7-9 Nov 2017) |
| Document date: 07 Nov 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Participants list from the 5th ASEP II informal group session |
| Reference Number: ASEP II-05-09 |
| Meeting Sessions: 5th ASEP II session (7-9 Nov 2017) |
| Document date: 07 Nov 17 |
| Click here to view the full document file |
| UN R51: OICA proposal to clarify the use of alternative measurement devices |
| Reference Number: ASEP II-05-08 |
|
UN R51 allows the use mechanical or electronic devices to control the gear shifting and measures to avoid accelerations greater than 2.0 m/s2. However, the measures are not defined and the manufacturer or technical service is not obliged to document the methodology in the test report. This proposal would introduce a table with examples for devices and measures for reference and would require documentation of methodology used. |
| Submitted by: OICA |
| Meeting Sessions: 5th ASEP II session (7-9 Nov 2017) |
| Document date: 07 Nov 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| UN R51: France comments on draft Supplement 3 to the 03 series (GRB/2017/5) |
| Reference Number: ASEP II-05-05 |
| Submitted by: France |
| Meeting Sessions: 5th ASEP II session (7-9 Nov 2017) |
| Document date: 07 Nov 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| ASEP: Issues discussed during the 66th GRB session |
| Reference Number: ASEP II-05-04 |
| Meeting Sessions: 5th ASEP II session (7-9 Nov 2017) |
| Document date: 07 Nov 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| The current situation of noise regulation in Japan |
| Reference Number: ASEP II-05-03 |
| Submitted by: MLIT |
| Meeting Sessions: 5th ASEP II session (7-9 Nov 2017) |
| Document date: 07 Nov 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions and UN Regulation No. 59 | Replacement Silencing Systems |
| Click here to view the full document file |
| ASEP: Proposal for next steps |
| Reference Number: ASEP II-05-02 |
| Submitted by: CATARC |
| Meeting Sessions: 5th ASEP II session (7-9 Nov 2017) |
| Document date: 07 Nov 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Japan sound emission test validation results |
| Reference Number: ASEP II-05-11 |
|
Japan presentation on tests conducted and questions raised. |
| Submitted by: JASIC |
| Meeting Sessions: 5th ASEP II session (7-9 Nov 2017) |
| Document date: 08 Nov 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| France sound emission test validation results |
| Reference Number: ASEP II-05-10 |
|
French ASEP test validation results and questions/difficulties encountered. |
| Submitted by: France |
| Meeting Sessions: 5th ASEP II session (7-9 Nov 2017) |
| Document date: 08 Nov 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| China presentation: ASEP scope and border conditions |
| Reference Number: ASEP II-05-06 |
| Submitted by: CATARC |
| Meeting Sessions: 5th ASEP II session (7-9 Nov 2017) |
| Document date: 08 Nov 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Test Program for a Single Vehicle for the Development of ASEP (Revision 3) |
| Reference Number: ASEP II-05-14 |
| Meeting Sessions: 5th ASEP II session (7-9 Nov 2017) |
| Document date: 08 Nov 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| ASEP: Development of a Physical Expectation Model Based on UN R51.03 Annex 3 Performance Parameters |
| Reference Number: ASEP II-05-12 |
|
OICA presentation on modeling, including tire rolling noise and power train noise, of vehicle sound emissions and compliance with UN R51 requirements. |
| Submitted by: OICA |
| Meeting Sessions: 5th ASEP II session (7-9 Nov 2017) |
| Document date: 08 Nov 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| ASEP informal group research: Data entry sheet with example |
| Reference Number: ASEP II-05-13 |
| Meeting Sessions: 5th ASEP II session (7-9 Nov 2017) |
| Document date: 09 Nov 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| ASEP informal group database: Stationary noise-public version |
| Reference Number: ASEP II-05-16 |
| Meeting Sessions: 5th ASEP II session (7-9 Nov 2017) |
| Document date: 06 Nov 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| ASEP informal group database: tyre rolling sound-public version |
| Reference Number: ASEP II-05-17 |
| Meeting Sessions: 5th ASEP II session (7-9 Nov 2017) |
| Document date: 06 Nov 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Test program for a single vehicle for the development of ASEP |
| Reference Number: ASEP II-05-15 |
| Meeting Sessions: 5th ASEP II session (7-9 Nov 2017) |
| Document date: 28 Nov 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Agenda for the 5th ASEP II informal group session |
| Reference Number: ASEP II-05-01/Rev.2 |
| Meeting Sessions: 5th ASEP II session (7-9 Nov 2017) |
| Document date: 07 Nov 17 |
| Click here to view the full document file |
| Draft agenda for the 6th ASEP II informal group session |
| Reference Number: ASEP II-06-01 |
| Meeting Sessions: 6th ASEP II session (22-24 Jan 2018) |
| Document date: 04 Dec 17 |
| Click here to view the full document file |
| Draft report of the 4th ASEP II informal group session |
| Reference Number: ASEP II-04-15 |
| Meeting Sessions: 4th ASEP II session (11-13 Jul 2017) |
| Document date: 17 Dec 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Draft report of the 5th ASEP II informal group session |
| Reference Number: ASEP II-05-18 |
| Meeting Sessions: 5th ASEP II session (7-9 Nov 2017) |
| Document date: 17 Dec 17 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |