Proposal to introduce installation specifications for securing a cab mounted on a vehicle to the test rig for tests B and C, as is currently provided for test A, under UN R29. This proposal aims to improve repeatability and reproducibility while allowing more flexibility in permitting the use of rigid composite blocks and/or (adjustable) metal brackets in securing the vehicle in the place of the wooden block presently prescribed in Figure 1.

Proposal to introduce installation specifications for securing a cab mounted on a vehicle to the test rig for tests B and C, as is currently provided for test A, under UN R29. This proposal aims to improve repeatability and reproducibility while allowing more flexibility in permitting the use of rigid composite blocks and/or (adjustable) metal brackets in securing the vehicle in the place of the wooden block presently prescribed in Figure 1.