Critical Milestone Achieved in the Proof of Union Status (PoUS) Project

Success of Phase 1: Digitizing Trade Documentation

The Proof of Union Status (PoUS) Project has successfully implemented Phase 1, introducing the T2L/T2LF data as a proof of the customs status of Union goods. Launched on 1 March 2024, this phase significantly improved trade processes by replacing paper-based documentation with electronic data. Today, the central PoUS system is adopted by traders across all Member States, having processed and registered over 660,000 proofs of Union status for goods to date. 

Launch of Phase 2: Streamlining Maritime Trade (15 August 2025) 

On 15 August 2025, the PoUS Project has reached a milestone with the launch of Phase 2, which implements the Customs Goods Manifest (CGM). This enhancement enables traders to manually submit proof of Union Status requests for sea-transported goods via the PoUS Specific Trader Portal (PoUS STP) in the form of CGM/CGMF data. 

Future Integration with Maritime National Single Windows (MNSW)

Once the Maritime National Single Windows (MNSWs) are fully operational in Member States, traders will be able to submit CGM/CGMF data automatically through these platforms. MNSWs will then forward the data directly to the PoUS system. This integration will significantly benefit maritime traders handling high-volume cargo by streamlining data exchange and accelerating customs procedures. 

Commission Support and Monitoring 

The European Commission remains committed to ensuring the smooth operation of the PoUS system. It will closely monitor the project’s progress in collaboration with Member States and provide tailored support to address implementation challenges and maintain operational efficiency. 

Learn More

For detailed information on the PoUS system, visit the European Commission’s PoUS page.