Which of the following regulations govern the road transport of hazardous goods?

You answered correctly. The road transport of hazardous goods in Germany is regulated by both the German Regulations on the Transport of Dangerous Goods by Road, Rail and Inland Waterways (GGVSEB) and the ADR, which is the European Agreement concerning the International Carriage of Dangerous Goods by Road. These two provide the legal framework and safety requirements for transporting dangerous materials on roads. The German Civil Code (BGB) does not contain regulations specific to hazardous goods transport, so it is not relevant in this context. Knowing which laws and agreements apply is essential for transporting dangerous goods safely and legally.