3. GRB resumed discussion on ECE/TRANS/WP.29/GRB/2012/5, tabled by the expert from the Russian Federation, providing harmonizing definitions on vehicle type concerning noise, the terms noise and sound. The expert from the Russian Federation introduced comments (GRB-57-21) to the concerns raised by the expert from IMMA to his proposal during the September 2012 session of GRB. The expert from IMMA recalled his reservation (GRB-56-08) to ECE/TRANS/WP.29/GRB/2012/5 and announced the provisions of further information for the September 2013 session of GRB. Accordingly, GRB agreed to resume discussion on this proposal at its next session on the basis of detailed information provided by the experts concerned.