The US Department of Energy (DOE) published a Secretarial Determination in the Federal Register on May 14, 2026 adding the Kingdom of Thailand to the list of Generally Authorized destinations in Appendix A to 10 CFR Part 810. In doing so, the administration eases regulatory burdens for US civil nuclear technology exports to an important economy in Southeast Asia.
US companies whose export control compliance materials (i.e., guidance, protocols, forms, training, country lists, and similar documents) identify the countries eligible for general authorization under Part 810 should update those materials to include Thailand.
Organizations with pending specific authorization applications before DOE involving Thailand or Thai nationals for technology eligible under 10 CFR § 810.6(a)—such as commercial reactor and non-plutonium fuel fabrication—can withdraw those applications. Similarly, organizations with active specific authorizations for Thailand or Thai nationals should notify DOE that those authorizations can now be terminated.
The “generally authorized” destinations in Part 810 are limited to countries that have peaceful nuclear cooperation agreements (also referred to as 123 Agreements after the section of the Atomic Energy Act that authorizes such treaties) with the United States, and for whom the US government has no other policy or security concerns. China and Russia, for example, have 123 Agreements with the United States but are not included in Appendix A.
The United States and Thailand signed a 123 Agreement on January 14, 2025, and the Agreement entered into force on July 9, 2025. DOE has now formally determined that there are no nuclear-related policy or security issues concerning Thailand. As a result, Appendix A to Part 810 has now been amended to list Thailand.