--- title: "T1 vs TIR Carnet: Choosing a Transit Document for Turkey to Central Asia Routes" description: "T1 and TIR Carnet both move a sealed truck through transit countries without full duty at each border. How they differ and when each applies." url: https://dealtilogistics.com/en/insights/t1-vs-tir-carnet language: en date_published: 2026-09-22 date_modified: 2026-09-22 author: "Dealti Insights" publisher: "Dealti Logistics" --- # T1 vs TIR Carnet: Choosing a Transit Document for Turkey to Central Asia Routes _In short_ - A TIR Carnet and a T1 both let a sealed truck cross transit countries under customs control without paying full import duties at each border; they differ in which countries and legal system each one covers. - The TIR Carnet, under the 1975 TIR Convention, covers close to 80 contracting parties worldwide, including Kazakhstan, Kyrgyzstan, Russia and Turkey. - The T1, under the Common Transit Convention, covers the EU plus a defined list of non-EU members: the UK, Norway, Iceland, Liechtenstein, Switzerland, Turkey, North Macedonia, Serbia, Moldova and Ukraine. - Turkey is a member of both systems, which is why the document used depends on the specific route rather than the country of origin alone. - For Turkey to Central Asia routes, a TIR Carnet generally covers the Central Asian leg, since Kazakhstan and Kyrgyzstan are TIR parties but not CTC members. - The carrier or forwarder chooses and opens the transit document as part of coordinating the export declaration and the CMR, not the shipper. A T1 and a TIR Carnet both let a loaded, sealed vehicle cross one or more countries without paying full import duties or clearing customs at every border; the difference is which countries and customs systems each one covers. On the Turkey to Central Asia corridor, the choice depends on the specific route and the customs regime of the countries the truck actually passes through, not on the shipment itself. This article explains both documents and how the choice plays out in practice; it is not customs or legal advice for a specific shipment. ## What both documents have in common A [TIR Carnet](/en/insights/tir-carnet) and a [T1](/en/insights/t1-transit-declaration) are both customs transit documents. Both are opened after export clearance and closed once the goods are presented to customs at the destination, and both let a vehicle move under customs control through [transit countries](/en/insights/transit-country) without the full import procedure at each internal border. Neither replaces the [CMR consignment note](/en/insights/cmr-consignment-note), which travels with the shipment regardless of which transit document is used. ## TIR Carnet: how it works The TIR Carnet is issued under the 1975 TIR Convention, administered by the United Nations Economic Commission for Europe (UNECE) and guaranteed through a chain of national associations coordinated by the International Road Transport Union (IRU). It currently has close to 80 contracting parties, a wider geographic reach than the EU customs area. Kazakhstan, Kyrgyzstan, Russia and Turkey are all TIR contracting parties, which is why a TIR Carnet is the document most commonly associated with road freight moving between Turkey and Central Asia. ## T1: how it works The T1 is a transit declaration used under the Common Transit Convention (CTC), which covers the EU as a single customs territory plus a defined list of non-EU contracting parties: the United Kingdom, Norway, Iceland, Liechtenstein, Switzerland, Turkey, North Macedonia, Serbia, Moldova and Ukraine. Turkey is itself a CTC contracting party, so a T1 can be opened for the parts of a movement that stay within the common transit area. ## TIR vs T1: the practical difference The two systems overlap in one country: Turkey belongs to both. Kazakhstan and Kyrgyzstan, by contrast, are TIR contracting parties but not CTC members, so a movement into Central Asia generally needs a TIR Carnet for that leg. A T1 becomes relevant where a route also touches CTC territory, for example a leg through the EU or another CTC member, rather than for the Central Asia leg itself. Which document is actually opened, and where, is a route-by-route customs decision, not a fixed rule; see [Road Routes from Turkey to Central Asia](/en/insights/turkey-central-asia-road-routes) for how Dealti's own corridors are structured. | | TIR Carnet | T1 | | --- | --- | --- | | Legal basis | 1975 TIR Convention (UNECE) | Common Transit Convention (CTC) | | Geographic coverage | Around 80 contracting parties worldwide | EU plus a defined list of CTC countries | | Issued by | National road transport association, guaranteed through IRU | Departure customs office, within the CTC system | | Typically used for | Legs through non-CTC countries, including Kazakhstan, Kyrgyzstan and Russia | Legs that stay within EU or CTC territory | ## Why Turkey sits in both systems Turkey's position, a TIR contracting party and a CTC member at the same time, is exactly why the choice cannot be generalised from the country of origin alone. A truck loaded in Turkey for a Central Asian destination may run under TIR for the entire journey, or under T1 for a European leg and TIR for the rest, depending on the specific route, the border posts used and the current customs arrangements at the time of shipment. ## What this means for a shipper A shipper does not choose the transit document; the freight forwarder or carrier does, based on the route and the countries it crosses, as part of coordinating the [export declaration](/en/insights/customs-declaration) filed by the shipper or their [customs broker](/en/insights/customs-broker). For where this sits in the overall shipment sequence, see [How International Road Freight Works](/en/insights/how-international-road-freight-works). ## How Dealti Logistics handles it Dealti Logistics opens the correct transit document, TIR Carnet or T1, for each route on the Turkey to Central Asia corridor, coordinating it with the export declaration and the CMR so the vehicle is ready to cross every border on schedule. To discuss the transit setup for a specific shipment, use the [quote form](/en/get-offer). Sources - UNECE, TIR Convention (1975) and TIR Handbook, on contracting parties and the guarantee chain administered through the IRU. - European Commission / EUR-Lex, Convention on a Common Transit Procedure, and the list of CTC contracting parties (EU, UK, Norway, Iceland, Liechtenstein, Switzerland, Turkey, North Macedonia, Serbia, Moldova, Ukraine). Customs regimes and contracting-party lists change over time; this article reflects the position as of 2026 and is not a substitute for confirming requirements for a specific shipment and current border rules. ## Key takeaways - Neither document replaces the CMR consignment note; both operate alongside it. - TIR Carnet reach is wider geographically; T1 reach is defined by CTC membership, which currently includes Turkey. - Kazakhstan and Kyrgyzstan are TIR contracting parties but not CTC members, so the Central Asia leg of a shipment typically moves under TIR. - A single shipment can use both documents on different legs if the route crosses both TIR-only and CTC territory. - The transit document choice is a route-by-route customs decision made by the carrier or forwarder, not a fixed rule tied to the shipment's origin. - Confirm current requirements for a specific route and date; contracting-party lists and customs regimes change over time. ## Frequently asked questions ### What is the main difference between a TIR Carnet and a T1? A TIR Carnet is issued under the international TIR Convention and covers close to 80 contracting parties worldwide, including countries far outside the EU. A T1 is issued under the Common Transit Convention and only covers the EU plus a defined list of non-EU members. The document used depends on which countries a shipment actually crosses. ### Which document is used for Turkey to Kazakhstan or Kyrgyzstan shipments? A TIR Carnet is generally the applicable document, since Kazakhstan and Kyrgyzstan are TIR contracting parties but not members of the Common Transit Convention that the T1 belongs to. ### Why is Turkey relevant to both systems? Turkey is both a TIR Convention contracting party and a Common Transit Convention member, so depending on the specific route and countries crossed, a shipment leaving Turkey can move under either document, or under TIR for one leg and T1 for another. ### Does a shipper need to choose between TIR and T1? No. The transit document is selected and opened by the carrier or freight forwarder based on the route, not by the shipper. The shipper's responsibility is the export declaration, usually filed through a customs broker. ### Does either document replace the CMR consignment note? No. The CMR consignment note is a separate transport document that travels with a shipment regardless of which transit document, TIR Carnet or T1, covers the customs side of the journey. ### Can contracting-party lists change? Yes. Both the TIR Convention and the Common Transit Convention periodically add or adjust contracting parties, so current requirements for a specific route and date should always be confirmed at the time of shipment. --- Source: [T1 vs TIR Carnet: Choosing a Transit Document for Turkey to Central Asia Routes](https://dealtilogistics.com/en/insights/t1-vs-tir-carnet) - Dealti Logistics.