56. The GRBP Chair reported on the results achieved by GRBP at its seventy-eighth session (for details, see the report of the session ECE/TRANS/WP.29/GRBP/76).

57. He pointed out that GRBP had renamed its Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) into the Informal Working Group on Real Driving — Additional Sound Emission Provisions (IWG RD-ASEP) had revised its Terms of Reference with the mandate extended.

58. WP.29 approved the extension of the mandate of the IWG RD-ASEP until February 2026.

59. He also mentioned that GRBP expressed concerns about aftermarket products that create artificial noise of electric vehicles in addition to AVAS for safety purposes and supported the idea to regulate a ‘grey area’ between UN Regulations Nos. 51 and 138.

60. WP.29 noted that the GRBP Task Force on Tyre Abrasion had developed two draft methods for measuring tyre abrasion: a real on-road driving method and an indoor drum method.

61. Finally, WP.29 took note that GRBP had re-elected by acclamation Mr. S. Ficheux (France) as Chair and Mr. B. Schüttler (Germany) as Vice-Chair for the year 2024.

45. The World Forum approved the report of the seventy-eighth session of GRBP (ECE/TRANS/WP.29/GRBP/76).