The American Quantum Competitiveness Act directs the Secretary of Commerce to lead federal efforts to strengthen U.S. quantum technology leadership and establish secure supply chains for quantum-related components. The bill designates the Commerce Secretary as the principal presidential advisor on quantum technology commercialization and requires the department to support private sector investment, identify supply chain vulnerabilities, and reduce dependence on components from potentially adversarial nations. It specifically defines "trusted suppliers" as companies based in the United States or allied nations like NATO members and OECD countries, while excluding components from adversarial "covered nations." Within two years of enactment and every three years thereafter, the Secretary must publish a public report describing actions taken, emerging risks to U.S. competitiveness, a comprehensive strategy to advance quantum leadership, and recommendations for Congress and the private sector. The legislation does not require private companies to share information with the government or implement recommended measures, and the Commerce Department is not required to disclose confidential business information.