Who bears legal responsibility for safe cargo securing and avoiding vehicle overload under Austrian road traffic law (KFG 1967 § 101 and § 102)?

1. Both the driver (responsible for driving safety, checking securing, and axle loads) and the loader/consignor (Verlader, responsible for proper loading and securing according to state-of-the-art standards)
2. Exclusively the driver, with the loader bearing zero legal responsibility
3. Exclusively the vehicle owner/carrier company
4. The recipient/consignee of the goods