DETA	Database for the Exchange of Type Approval Information Next session: 19 Jun
EWG	Enforcement Working Group Last session: November 2015
GRB	Working Party on Noise Last session: January 2019
GRBP	Working Party on Noise and Tyres Next session: 3-5 Sep
GRE	Working Party on Lighting and Light-signalling Next session: 21-24 Oct
GRPE	Working Party on Pollution and Energy Next session: 14-17 Oct
GRRF	Working Party on Brakes and Running Gear Last session: February 2018
GRSG	Working Party on General Safety Next session: 6-10 Oct
GRSP	Working Party on Passive Safety Next session: 5-9 May
GRVA	Working Party on Automated and Connected Vehicles Next session: 2-6 Jun
ITS	Intelligent Transport Systems Last session: November 2014
ITS/AD	Intelligent Transport Systems-Automated Driving Last session: June 2018
ITS3	Intelligent Transport Systems Phase 3 Last session: February 2025
IWVTA	International Whole Vehicle Type Approval System Next session: 19 Jun
PTI	Periodical Technical Inspections Next session: 28-29 May
SCUNV	Safer and Cleaner Used and New Vehicles in Developing Markets Last session: April 2025