GlossaryEN1 min readUpdated: Jun 24, 2026

In-Transit Customs Sealing

In-transit customs sealing is distinct from commercial cargo securing: it is a sovereign act by which customs authorities affix tamper-evident seals to containers, vehicles, or load units, ensuring that the contents cannot be altered between the office of departure and the office of destination.

Quick Answer

Last updated: 24 June 2026Published: 19 June 2025

Source: https://ec.europa.eu/taxation_customs/business/customs-procedures/transit/index_en.htm

Category

Find a matching partner on this lane

Reading time

1 min

Words

131

Mentioned in

–

Definition & Explanation

In-transit customs sealing is distinct from commercial cargo securing: it is a sovereign act by which customs authorities affix tamper-evident seals to containers, vehicles, or load units, ensuring that the contents cannot be altered between the office of departure and the office of destination. The seal – increasingly an electronic or high-security single-use seal – serves as proof of integrity and is a prerequisite for transit procedures such as T1, TIR, or the ATA Carnet to function correctly. A seal found damaged or missing on arrival constitutes a customs irregularity that can trigger assessment of all duties originally suspended under the transit procedure. For freight forwarders and customs agents, thorough documentation of seal numbers and their condition at both handover and receipt is a compliance obligation routinely checked at border controls.

Next steps

Matching tools and partners

Calculate customs valueWork out import duties and customs valueOpen Find HS codeDetermine the tariff number for customsOpen Calculate transit timeEstimate duration per transport modeOpen Find a matching partnerFreight forwarders and logistics partners worldwideOpen

Related Terms

You might also be interested in these terms

New Computerised Transit System

NCTS – the New Computerised Transit System – replaces paper-based transit documents with fully electronic declarations for cross-b…

presentation under transit

Unlike a simple advance notification, presentation under transit refers to the formal act of producing goods to the competent cust…

transit processing

A truck carrying electronics travels from Germany to Poland, crossing German customs territory without the goods being released fo…

transit process

A transit process is the customs and fiscal procedure that allows goods to move under customs seal through one or more customs ter…

Transit control

Customs authorities and authorised economic operators use transit control to verify that goods moving under a suspensive procedure…

NCTS Arrival Notification

Unlike the transit declaration lodged at the office of departure, the NCTS Arrival Notification marks the end of a transit movemen…

Connect

Find a matching partner on this lane

Verified forwarders, ranked by coverage and profile — premium capped at 10%.

Search partners

Logistics knowledge straight to your inbox

Free · No password · Never a paywall. Weekly top news and facts from logistics.

Community Questions & Answers

Share your knowledge, ask follow-up questions, or add practical insights to this page. Every contribution is moderated before publication.

No community answers yet. Be the first.