31. The following provisional agenda was adopted for the fifty-sixth session of GRB, scheduled to be held in Geneva from 3 (starting at 2.30 p.m.) to 5 (concluding at 5.30 p.m.) September 2012:
1. Adoption of the agenda.
2. Regulation No. 41 (Noise of motorcycles): Development.
3. Regulation No. 51 (Noise of M and N categories of vehicles):
(a) Development;
(b) New limit values;
(c) Additional sound emission provisions.
4. Regulation No. 59 (Replacement silencing systems).
5. Regulation No. 92 (Replacement exhaust silencing systems for motorcycles).
6. Regulation No. 117 (Tyre rolling noise and wet grip adhesion).
7. Collective amendments:
(a) Regulation Nos. 41, 51 and 59;
(b) Regulation Nos. 9 and 63.
8. Exchange of information on national and international requirements on noise levels.
9. Influence of road surface on tyre rolling sound emissions.
10. Quiet Road Transport Vehicles.
11. Definitions and acronyms in Regulations under GRB responsibilities.
12. Proposal for amendments to Consolidated Resolution on the Construction of Vehicles.
13. Environmentally Friendly Vehicles.
14. Other business.
15. Election of officer.