Certain vessel clearance procedures on the Sulina Canal are being changed to accelerate traffic along the Danube. The new procedures apply in Sulina and Tulcea and cover vessels travelling both upstream and toward the Black Sea. The goal is to reduce clearance times and improve the capacity of a route that remains important for Ukrainian cargo flows.

The changes come amid significant congestion. As of September 21, around 70 vessels were waiting to pass through Sulina, while another seven were completing formalities at the roadstead. The longest waiting times apply to vessels heading to the Ukrainian ports of Reni, Izmail and Orlivka — approximately 12–17 days. Ships bound for Giurgiulesti face waits of 3–6 days, while those heading to Galați, Brăila and Tulcea generally wait 2–4 days.

Congestion at Sulina remains one of the factors increasing costs for Ukrainian exporters. In early September, around 80 vessels were waiting near the canal, with transit delays for ships heading to Ukrainian ports estimated at 14–17 days. Longer waiting periods increase voyage duration and related operating expenses, which can ultimately affect freight rates and agricultural logistics costs.

However, the route's capacity depends on more than clearance procedures. The current maximum safe draft is 7.01 m on the Sulina Canal, 5.5 m through the Bystre estuary and 6.75 m on the Izmail–Mile 44 section. Faster clearance could therefore improve traffic flow but will not eliminate all constraints affecting Danube logistics. For Ukrainian agricultural exports, shorter queues at Sulina would primarily mean more predictable delivery times and potentially lower costs associated with vessel delays.