Mandate
Under its legal mandate, DNIT implements federal policy for transport infrastructure under its care, including the operation, maintenance, rehabilitation, capacity upgrades, and expansion of federal highways, federal rail segments not under concession, and inland waterways and small public port facilities under federal jurisdiction. It also undertakes research, issues technical standards, coordinates with regulators and subnational authorities, and manages projects financed from the federal budget and other sources. Within federal highways, DNIT holds powers to enforce traffic rules and apply penalties through its weigh-station and roadway oversight programs. == Organization and legal basis ==
Organization and legal basis
Law No. 10,233/2001 established DNIT as a public-law entity with administrative, budgetary, and financial autonomy, linked to the then Ministry of Transport (subsequently named the Ministry of Infrastructure from 2019 to 2022 and restored as the Ministry of Transport in 2023). The department's regimental structure and leadership posts are defined in federal decrees and internal regulations; the current regimental structure was approved by Decree No. 11,225 of 7 October 2022. DNIT's central administration is supported by technical directorates and by regional superintendencies in Brazil's states. == See also ==