Pursuant to Section 1.31 of Title 37 of the Code of Federal Regulations (CFR), an applicant that qualifies as a juristic entity must be represented by a registered patent attorney or agent. In effect, this provision precludes companies and other organisational entities from representing themselves in proceedings before the United States Patent and Trademark Office (USPTO), thereby requiring them to engage a qualified practitioner to act on their behalf.

In July 2020, the United States initiated an anti-subsidy investigation on imports of silicon metal (HS Code: 280469) from Kazakhstan, which is also used for producing silicon compounds as well as silicon wafers used as electronic semiconductors. In April 2021, the United States imposed a definitive countervailing duty with a rate of 160%.

The US Department of State has decided not to use Lenovo Group Ltd. computers on a classified network, under fears that hardware-level backdoors could exist in these products. Lenovo hardware is also reportedly banned by the US Central Intelligence Agency (CIA), although no evidence of any wrongdoing on Lenovo's part has been presented.

In June 2023, the U.S. Federal Government issued the Federal Acquisition Regulation (FAR) clause, FAR 52.204-27, implementing the No TikTok on Government Devices Act. This clause prohibits the presence or use of the TikTok application on IT equipment used by government contractors and their personnel during the performance of a federal contract. The measure was introduced to protect government information in response to national security concerns. The regulation took effect immediately and applies to all new government contracts, including those that fall below the simplified acquisition threshold, as well as contracts for commercial products and commercial services.
It is reported that certain related restrictions apply since January 2020, when the United States Army and Navy banned TikTok from government devices following the Defense Department's designation of the app as a security risk. A Navy bulletin posted on a Facebook page for military personnel warned that users of government-issued mobile devices who did not remove TikTok would be blocked from accessing the Navy-Marine Corps Intranet.

The U.S. is a signatory of the World Trade Organization (WTO) Information Technology Agreement (ITA) of 1996 and its 2015 expansion (ITA II).

In October 2008, the United States authorities imposed a definitive anti-dumping duty on the import of electrolytic manganese dioxide (HS Code: 282010), which is the critical component of the cathode material in modern alkaline, lithium and sodium batteries, including electrochemical capacitors and hydrogen production. The duty applies to imports from Chinese firms, most notably Guizhou Redstar Developing Import and Export Company, Ltd. This measure was extended in January 2015 and subsequently in July 2020. The rate of duty on imports from China is 149.9%.

In June 1991, the United States authorities imposed a definitive anti-dumping duty on imports of silicon metal (HS Code: 280469) from China, which is used also for producing silicon compounds as well as silicon wafers used as electronic semiconductors. This measure was last extended in June 2018. The rate of duty on imports from China is 139.5%.

In March 2003, the United States authorities imposed a definitive anti-dumping duty on imports of silicon metal (HS Code: 280469) from Russia, which is also used for producing silicon compounds as well as silicon wafers used as electronic semiconductors. This measure was last extended in June 2020. The rate of duty on imports from Russia is 79.4% for all companies, with the exception of Russian ZAO Kremny/Sual-Kremny-Ural Ltd, which gets a 56.1% duty.

It is reported that the de minimis threshold, that is the minimum value of goods below which customs do not charge duties, is GBP135 (approx. 200 USD), following the 200 USD threshold recommended by the International Chamber of Commerce (ICC). The UK has not changed its de minimis threshold since departing the EU and has not stated plans to deviate from the £135 threshold.

The UK has robust consumer protection laws, as laid out in the Consumer Rights Act 2015. The rights enumerated in the 2015 legislation, which include standards for considering goods faulty, unfair contract terms, right to repair, and right to return, apply to both in-person and online transactions. The UK also applies the UK eIDAS Regulations, which "set out rules for UK trust services and establishes a legal framework for the provision and effect of electronic signatures, electronic seals, electronic time stamps, electronic documents, electronic registered delivery services and certificate services for website authentication."

The UK has not signed the United Nations (UN) Convention on the Use of Electronic Communications in International Contracts.

The UK has not adopted national legislation based on or influenced by the United Nations Commission on International Trade Law (UNCITRAL) Model Law on Electronic Commerce.

The UK has not adopted national legislation based on or influenced by the United Nations Commission on International Trade Law (UNCITRAL) Model Law on Electronic Signatures.