Customs sources
This page shows where to find the official texts and lookup tools you need for customs work. Legislation changes often, so we send you to the source itself, and we write next to each link when we last opened and checked it.
Go straight to official texts and lookup tools
We list the laws, lookup tools and official pages, and write next to each one when we last opened and checked it.
This page is for information. The binding text is the official one we link to. Make decisions about your declaration together with your customs broker.
We last opened every link one by one on 5 October 2026.
Start from what you are looking for
If you are looking for a product's tariff code in Türkiye, start with the Tariff Search Engine.
For the measures that apply to a shipment into the EU, look at TARIC. Access2Markets shows a product's trade conditions and rules of origin.
If you are looking for the legal basis of a practice, the Customs Law and the Customs Regulation are in the Legislation Information System.
Laws and decisions in Türkiye
The texts are in the Presidency's Legislation Information System and on the Ministry of Trade's site. They are in Turkish.
- LawIn Turkish
Customs Law (Gümrük Kanunu)
Law No. 4458 · Official Gazette 4 November 1999, No. 23866mevzuat.gov.trSets the customs rules for goods and vehicles entering and leaving the Customs Territory of Türkiye. It is the first text to check for the legal basis of a practice.
Last checked 5 October 2026
Open the source - RegulationIn Turkish
Customs Regulation (Gümrük Yönetmeliği)
Official Gazette 7 October 2009, No. 27369 (repeated issue)mevzuat.gov.trCovers the matters the Customs Law leaves to a regulation, and the procedures and principles of customs operations.
Last checked 5 October 2026
Open the source - DecisionIn Turkish
Import Regime Decision, Additional Customs Duty Decision and import communiqués
Decision Nos. 3350 and 3351ticaret.gov.trOn this page the Ministry of Trade publishes the consolidated texts of the Import Regime Decision and the Additional Customs Duty Decision, the amending decisions by year, and the import communiqués. The Ministry states that the consolidated texts are current.
Last checked 5 October 2026
Open the source - LawIn Turkish
Law on the Prevention of Unfair Competition in Imports
Law No. 3577 · Official Gazette 1 July 1989, No. 20212mevzuat.gov.trAims to protect an industry against injury caused by dumped or subsidised imports.
Last checked 5 October 2026
Open the source - LawIn Turkish
Product Safety and Technical Regulations Law
Law No. 7223 · Official Gazette 12 March 2020, No. 31066mevzuat.gov.trAims to ensure that products are safe and comply with the relevant technical regulations. It also sets the principles of market surveillance and inspection.
Last checked 5 October 2026
Open the source
Lookup tools and official pages in Türkiye
The Ministry of Trade's customs pages and the Official Gazette are listed here. They are in Turkish.
- Official pageIn Turkish
Ministry of Trade customs legislation index
ticaret.gov.trThe Ministry lists customs legislation by type. You can reach laws, presidential decisions, regulations, communiqués, circulars and international conventions from here.
Last checked 5 October 2026
Open the source - Lookup toolIn Turkish
Tariff Search Engine (Tarife Arama Motoru)
uygulama.gtb.gov.trSearch for a product's tariff code (GTİP) by keyword or by code number. The search asks you to enter a security code.
Last checked 5 October 2026
Open the source - Official pageIn Turkish
Trade policy defence instruments
ticaret.gov.trThe page is organised under dumping and subsidies, safeguard measures, and monitoring of the circumvention of measures. Measures against Turkish export products have their own heading.
Last checked 5 October 2026
Open the source - Official pageIn Turkish
TAREKS
ticaret.gov.trThe system through which product safety inspections of imports and exports are carried out electronically on a risk basis. The Ministry introduces the system on this page.
Last checked 5 October 2026
Open the source - Official pageIn Turkish
Authorised Economic Operator status (YYS)
ticaret.gov.trFind the facilitations the status brings, the electronic application process and the list of companies that hold it.
Last checked 5 October 2026
Open the source - Official pageIn Turkish
Documents used at customs offices
ticaret.gov.trReach customs declaration forms, the summary declaration form and other documents used in customs operations from here.
Last checked 5 October 2026
Open the source - Official pageIn Turkish
Customs operations knowledge bank
ticaret.gov.trThe Ministry's guides and handbooks for customs operations are collected here.
Last checked 5 October 2026
Open the source - Official pageIn Turkish
Frequently asked questions on customs operations
ticaret.gov.trThe Ministry answers frequent questions on customs legislation and practice under individual and commercial headings.
Last checked 5 October 2026
Open the source - Official pageIn Turkish
Official Gazette (Resmî Gazete)
resmigazete.gov.trLaws, decisions and communiqués are published here. You can reach the text of a new rule from the issue of the day it was published.
Last checked 5 October 2026
Open the source
European Union
The regulations used in trade between Türkiye and the EU, and the European Commission's lookup tools, are listed here.
- EU regulation
Union Customs Code
Regulation (EU) No 952/2013 · 9 October 2013eur-lex.europa.euThe regulation that lays down the EU's customs code. The EUR-Lex page states that the act has been changed and links to the current consolidated version.
Last checked 5 October 2026
Open the source - EU regulation
Regulation supplementing the Union Customs Code
Delegated Regulation (EU) 2015/2446 · 28 July 2015eur-lex.europa.euContains detailed rules concerning certain provisions of the Union Customs Code.
Last checked 5 October 2026
Open the source - EU regulation
Union Customs Code implementing regulation
Implementing Regulation (EU) 2015/2447 · 24 November 2015eur-lex.europa.euLays down detailed rules for implementing certain provisions of the Union Customs Code.
Last checked 5 October 2026
Open the source - Lookup tool
TARIC
ec.europa.euIn the European Commission's TARIC database you can look up the measures that apply by goods code and by country of origin or destination.
Last checked 5 October 2026
Open the source - Lookup tool
Access2Markets
trade.ec.europa.euThe European Commission's trade portal. You can search the trade conditions and rules of origin for your product and explore the EU's trade agreements.
Last checked 5 October 2026
Open the source - Official page
Carbon Border Adjustment Mechanism (CBAM)
taxation-customs.ec.europa.euThe European Commission's CBAM page. According to the page, the mechanism has applied under its definitive regime since 1 January 2026. Legislation and guidance are linked from here.
Last checked 5 October 2026
Open the source - EU regulation
CBAM Regulation
Regulation (EU) 2023/956 · 10 May 2023eur-lex.europa.euThe regulation that establishes the carbon border adjustment mechanism. The EUR-Lex page states that the act has been changed.
Last checked 5 October 2026
Open the source - Lookup tool
EORI number validation
ec.europa.euCheck whether an EORI number is valid.
Last checked 5 October 2026
Open the source - Decision
Decision No 1/95 of the Association Council
Decision No 1/95 · 22 December 1995eur-lex.europa.euThe decision that implements the final phase of the Customs Union between Türkiye and the EU.
Last checked 5 October 2026
Open the source
International rules
These are the pages of the international texts behind goods classification, customs valuation and delivery terms.
- Official page
Harmonized System nomenclature, 2022 edition
wcoomd.orgThe World Customs Organization publishes the 2022 edition of the Harmonized System, on which goods classification is based, on this page. The site also has a separate page for the 2028 edition.
Last checked 5 October 2026
Open the source - Official page
WTO Agreement on Customs Valuation
wto.orgThe World Trade Organization's customs valuation page. The agreement aims for a fair, uniform and neutral system for valuing goods for customs purposes.
Last checked 5 October 2026
Open the source - Official page
Incoterms rules (ICC)
iccwbo.orgThe page of the International Chamber of Commerce, which publishes the rules. Incoterms 2020 publications are linked from here.
Last checked 5 October 2026
Open the source
Terms
If you do not know an abbreviation in a document, you can search for it in the Abbreviations page. The links below go to entries that come up often in customs.
- HS (Harmonized System)
- C/O (Certificate of Origin)
- CHB (Customs House Brokerage)
- AEO (Authorized Economic Operator)
- NCTS (New Computerized Transit System)
- DDP (Delivered Duty Paid)
- WCO (World Customs Organization)
Ask what the sources do not answer
If you wonder how a rule works in practice, ask in the Questions section under the Customs category. Answers are members' own experience and do not replace an official opinion.
Go to QuestionsTools you can use in customs work
These tools are not official sources. Their own pages explain what they do and where their limits are.
- CustomsEnglish interface
The Declarant
thedeclarant.comChecks a customs declaration for EU imports before you file it. The report shows missing documents, inconsistent information and financial exposure.
See details - Trade terms
Incoterms 2020 guide
Compare who carries the cost, the risk and the responsibility under each of the eleven terms. If you are unsure which term fits, ask the AI advisor on the page.
Open the guide
Do you work in customs?
We do not make guides that explain customs regimes and documents public before someone who works in the field has read them. Write to us if you would like to read and correct those guides, or to report a missing or broken link.
Write to us