This proposed global technical regulation would supplement the three main environmental performance verification test types (i.e., I, II, and VII as envisioned for GTR No. 2 by the Informal Working Group on Environmental and Propulsion Performance Requirements of L-category vehicles (EPPR)) with procedures for verifying pollution device/system durability.

This effort includes both the development of the GTR and its UN Regulation counterpart. For convenience, materials concerning both efforts are grouped here.