The TSP Fiduciary Security Act of 2026 adds national security requirements to the management of the Thrift Savings Fund (TSP), the retirement savings plan for federal employees and military members. The bill requires the Federal Retirement Thrift Investment Board to prevent TSP investments and voting activities from harming U.S. national security, with presumptions that investments in Chinese military companies and certain sanctioned entities violate this duty. Within one year, the Secretary of Labor—working with the Secretaries of Defense, Homeland Security, and Treasury—must create regulations defining which investments and shareholder votes comply with this new requirement, including standards for blocking investments in entities on restricted lists and preventing votes on proposals that would breach federal contracts or shift defense-critical technology to adversarial countries. The bill also directs the Secretary of Labor to report annually to Congress on TSP compliance reviews and enforcement actions, and prohibits TSP mutual funds from investing in Chinese-based entities. The fiduciary protections against personal liability expire on January 1, 2027, after which the new rules fully take effect.
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