Honorably, Director-General of the highway, as highway Director under section 48, the first paragraph, the virtue of Act 2535 (1992) capital which was amended by the Highways Act (No. 2) 2549 (2006)
Therefore, Director-General of the Department, as director of national highway. The power section 48 the first paragraph of the 2535 Royal Act amended by act (No. 2 highway) in 2549.