Background
Vehicle overloading is a road management issue because excessive axle loads accelerate pavement deterioration, shorten road asset life, and increase maintenance costs on national highways. Cambodia regulates heavy vehicle weight limits as part of its transport governance system to protect road infrastructure and manage freight movement on public roads.
The Ministry of Public Works and Transport operates weigh stations and mobile inspection teams to monitor compliance with permitted weight limits on the national road network. Weight-control enforcement in Cambodia is linked to infrastructure protection rather than only traffic operations, because overloaded trucks can damage road surfaces, bridges, and related transport assets.
Key Developments
On 8 April 2026, a mobile inspection team under the Ministry of Public Works and Transport conducted checks on overloaded transport vehicles at five locations in Tbong Khmum, Prey Veng, Kandal, and Phnom Penh. The operation was carried out under the direction of Minister Peng Ponea and coordinated by Secretary of State Seng Chhuon, who also chairs the permanent coordination committee for inspections of overloaded vehicles and the mixed mobile inspection working group.
The inspection team worked with officials from the Thnal Totueng, Neak Loeung, Kampong Tuol, Ang Snuol, and Prek Hor stations. According to the ministry, the checks covered five road locations: National Road 11 at kilometer 79 in Ou Reang Ov district, Tbong Khmum; National Road 313 at kilometer 0+100 in Kampong Trabek district, Prey Veng; National Road 3 at kilometer 24+750 in Kandal Stueng district, Kandal; National Road 34 at kilometer 8 in Kandal Stueng district, Kandal; and National Road 20A at kilometer 1 in Dangkor district, Phnom Penh.
The ministry reported that 16 vehicles were inspected and all 16 were found to be carrying loads above the permitted limit. Reported overload amounts ranged from 5 tons to 23 tons, or approximately 22% to 76% above the allowed weight.
By location, the ministry said two vehicles on National Road 11 exceeded permitted weight by 19 to 20 tons, equivalent to 66% to 76%. Two vehicles on National Road 313 exceeded limits by 9 to 23 tons, equivalent to 22% to 57%.
On National Road 3 in Kandal province, five vehicles bearing the SSP logo were found to exceed permitted weight by 6 to 10 tons, or 37% to 62%. On National Road 34, three vehicles exceeded limits by 5 to 9 tons, or 31% to 56%.
On National Road 20A in Phnom Penh, four vehicles bearing the SL, DN, and KH logos were found to exceed permitted weight by 7 to 12 tons, or 43% to 75%. The ministry also issued a reminder to heavy transport companies, vehicle owners, and drivers to comply with the law.
Implications
The operation indicates continued administrative enforcement of truck weight limits on Cambodia’s national road network. For freight operators and logistics businesses, the reported inspections reinforce the need to monitor loading practices, dispatch controls, and route compliance where mobile checks and weigh stations are active.
For infrastructure management, repeated detection of overloaded vehicles across multiple provinces suggests ongoing pressure on road assets used for freight transport. The publication also provides a dated reference point for tracking Cambodia’s road protection measures, mobile inspection activity, and transport compliance practices.
Official Source
Ministry of Public Works and Transport (MPWT), Facebook post published on 9 April 2026: Official source.
