To require the Secretary of Defense to issue regulations requiring that optional combat boots worn by members of the Armed Forces wear be made in America, and for other purposes.

HR 4159 requires the Secretary of Defense to issue regulations within 730 days mandating that all optional combat boots worn by military members as part of their required uniform must be entirely manufactured in the United States, using materials and components grown, produced, or made in the U.S. It directly affects service members who choose to wear non-furnished combat boots, requiring those boots to meet strict U.S. manufacturing standards. Exemptions apply if the military determines a specific boot is needed for operational reasons (under existing law) or if medical necessity requires non-compliant boots. The bill focuses on procurement standards without altering broader military policy.