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UD Trux Corporation's Yokkaichi factory in Mie Prefecture was subject to a business suspension ordered by the Chubu Transportation Bureau from December 27, 2024, to January 15, 2025, a period of 20 days. The suspension was based on violations of the Road Transport Vehicle Law Articles 90 and 91-3, specifically due to serious defects in specific maintenance work that caused an accident and inadequate overall management by the maintenance supervisor regarding specific maintenance tasks. The enforcement action was issued on December 26, 2024.

UD Trucks Co., Ltd. (corporate number 8030001043599), located in Kumamoto City, Kumamoto Prefecture, had its designation canceled by the Kyushu Transport Bureau on May 31, 2024. The violations involved failing to establish a compliant organizational structure, issuing certificates of conformity under unauthorized vehicle modifications, and performing unauthorized modifications. The violations are based on Articles 94-3(1), 94-5(1), and 99-2 of the Road Transport Vehicle Act. The case was handled by the Vehicle Safety and Maintenance Division of the Kyushu Transport Bureau.

The Kyushu Transport Bureau canceled the vehicle certification for UD Trucks Corporation's Kumamoto Factory on May 31, 2024. The violations involved performing unauthorized modifications to vehicles and conducting vehicle inspections while in a non-compliant modification state. The legal basis for the action includes Articles 91-3, 99-2, and 94-5 of the Road Transport Vehicle Law.

UD Trucks Corporation's Amagasaki factory in Hyogo Prefecture had its safety compliance certificates suspended by the Kinki Transportation Bureau from October 30 to November 18, 2023. The suspension was based on violations of Article 94-5, Paragraph 1 of the Road Transport Vehicle Law, related to significant defects in specific maintenance work that led to an accident. The violation was identified by the Kanto Transport Bureau's Vehicle Safety Department, Maintenance Division, with contact at 045-211-7254 (extension 5476).

UD Trucks Corporation's Ise Factory, located in Mie Prefecture, was subject to a business suspension from November 9 to November 28, 2022, by the Chubu Transportation Bureau. The suspension was due to conducting vehicle inspection procedures while the vehicle was in an illegally modified condition, in violation of Article 94-5 of the Road Transport Vehicle Law. The violation was identified by the Chubu Transportation Bureau's Automotive Technical Safety Department Maintenance Division, with the violation details confirmed as performing vehicle inspections under illegal modification conditions.

The Chubu Transport Bureau issued a suspension of the issuance of safety compliance certificates to UD Trucks Corporation Ise Factory, located in Mie Prefecture, from November 9, 2022, to January 12, 2023, totaling 65 days. The violations involved failure to establish a compliance system as per legal requirements, issuing certificates despite vehicles being improperly modified, falsification of designated maintenance records, and partial omissions and errors in those records. The violations were under the Road Transport Vehicle Law Articles 94-3(1), 94-5(1), and 94-6(1). The enforcement action was carried out by the Chubu Transport Bureau's Automobile Technical Safety Department Maintenance Division.

UD Trucks Corporation's Kashima Factory, located in Kamisu City, Ibaraki Prefecture, was subject to a business suspension ordered by the Kanto Transport Bureau. The suspension lasted from December 26, 2021, to January 14, 2022 (20 days). The violation involved significant defects in specific maintenance work, as per Article 90 of the Road Transport Vehicle Law. The Kanto Transport Bureau's Automotive Safety and Technical Department Maintenance Division issued the order, citing the violation. The enforcement action was taken on December 15, 2021.