Explanation of the proposal from RDW, T&E and ICCT for an improved definition of vehicle test mass as well as the proposal from ICCT to substitute the current step-based inertia class system by a step-less approach.

Presentation on the combined approach for vehicle test weight, stepless inertia and vehicle selection developed by RDW, ICCT, and T&E.

Presentation concerning work on vehicle headrest height provisions in the GTR 7 test procedures, especially considering taller occupants.

Presentation on Netherlands conclusions concering optimal head restraint height specifications.

In 2011, the WLTP-DTP group agreed to pursue an improved definition of vehicle test mass and a step-less approach to the inertia class system. This revised document describes the current view on the combined approach for vehicle test mass, inertia setting, tire and vehicle selection.

Netherlands presentation concerning the effort to ensure that head restraints provide effective protection at maximum height levels.

Updated presentation from the previous informal group meeting (GTR7-08) of December 2011 on the development of new procedures to ensure effectiveness of headrest protection for taller occupants (e.g., when headrest set at maximum height).