Customs and Excise Management Act 1979: Primary UK legislation governing customs procedures, duties, and enforcement of customs regulations

Taxation (Cross-border Trade) Act 2018: Establishes the UK's customs system after Brexit, including provisions for import duty and other customs procedures

European Union (Withdrawal) Act 2018: Legislation covering the UK's exit from the EU and incorporation of EU law into UK domestic law

Customs (Import Duty) (EU Exit) Regulations 2018: Detailed regulations governing import duties and procedures following UK's exit from the EU

Customs (Export) (EU Exit) Regulations 2019: Regulations specifically dealing with export procedures and requirements post-Brexit

Customs (Special Procedures and Outward Processing) Regulations 2018: Regulations covering special customs procedures and processing of goods outside the UK

UK Global Tariff: The UK's most-favored-nation tariff regime that applies to all imported goods, unless preferential arrangements exist

HMRC Guidance and Notices: Official guidance documents and notices from HM Revenue & Customs regarding import procedures and requirements

Trade Agreements: Bilateral and multilateral trade agreements between the UK and other countries affecting import duties and procedures

Commodity Codes Classification: System for classifying goods for import/export, determining applicable duties and controls

VAT Regulations: Rules governing Value Added Tax on imported goods into the UK

Import License Requirements: Specific licensing requirements for certain categories of imported goods

Safety and Security Declarations: Requirements for safety and security information for goods entering the UK

WCO Guidelines: World Customs Organization international standards and guidelines for customs procedures

Incoterms: International Commercial Terms defining responsibilities of buyers and sellers in international transactions