International transport requires precise and regulation-compliant customs documentation. Every customs procedure demands proper documentation that must be complete and meet specific requirements. Errors in forms can lead to delays, additional costs, or the seizure of goods by customs authorities. To avoid such issues, it's essential to understand terms like EORI, MRN, and HS Code. Correct use of these identifiers facilitates customs clearance and speeds up logistics processes. For companies involved in international trade and transport, working with a professional customs agency such as the branches of Serwis Celny Nieten — customs agency Warsaw, customs agency Lublin, or customs agency Rzeszów — ensures smooth import and export customs clearance.

EORI – Economic Operator Registration and Identification Number in Customs Procedures

The EORI number is a unique identifier assigned to companies and individuals conducting business within the European Union. It is mandatory for any customs clearance involving shipments crossing EU borders. Without this number, an importer or exporter cannot carry out customs procedures. It is issued by national customs authorities and is valid across the entire EU. Non-EU businesses operating within the Union must register for an EORI number in the first member state where customs clearance is performed.

The EORI registration process is relatively straightforward but requires submitting complete customs clearance documents. Using the services of a professional customs agency can ensure that the procedure is conducted quickly and without errors. Both exporters and importers should remember that the EORI number must be included on all customs documents, transport documents, and commercial invoices. Missing or incorrect EORI numbers can result in the rejection of customs declarations, causing costly delays.

MRN – Movement Reference Number in Customs Clearance

The MRN (Movement Reference Number) is a unique number assigned to each customs declaration in the EU’s transit system. It is a key element of customs documentation in international transport and enables shipment tracking in customs systems. It appears in both import and export customs procedures. Each customs declaration generates a specific MRN, which is necessary for tracking shipment status and allows customs authorities to identify the cargo.

All branches of the Nieten company — customs agency Warsaw, customs agency Lublin, and customs agency Rzeszów — provide clients with the MRN once the declaration is approved in the customs system. This number should be included in transport documents, as customs officials may request it during inspections. Incorrect or missing MRNs may result in the shipment being held at the border. That’s why professional customs handling ensures procedural compliance and eliminates the risk of document-related errors.

HS Code – Product Classification System in Customs Clearance

The HS Code (Harmonized System Code) is a six-digit classification code used worldwide to identify products in international trade. It allows customs authorities to identify goods, apply appropriate duty rates, and enforce import/export regulations. In the European Union, an extended version of the system is used — the CN code — which consists of eight digits for more precise product classification.

Correctly assigning an HS code to a product is one of the most critical parts of customs documentation. Errors in classification can lead to incorrect duty assessments or, in extreme cases, the confiscation of goods by customs authorities. Professional customs agencies in Dorohusk and Korczowa assist with proper classification, minimizing the risk of disputes or tax miscalculations.

Why Use Customs Services for Customs Clearance

Preparing customs documentation requires experience and up-to-date knowledge of international regulations. Requirements for import and export clearance may change, and any mistakes in declarations can result in delays and extra costs. The customs agency in Dorohusk and customs agency in Korczowa help clients avoid problems by ensuring proper product classification, document completeness, and timely clearance.

Serwis Celny Nieten offers comprehensive customs services, ensuring efficient import and export customs clearance. Experienced customs agents ensure that all documentation complies with legal requirements, eliminating the risk of errors. Thanks to their professional approach, businesses using these services can focus on their operations without worrying about complex formalities. Entrusting your customs processes to experienced agents at Serwis Celny Nieten guarantees smooth and uninterrupted logistics operations.