Directs the Secretary of State to produce a written strategy (within 180 days) for strengthening U.S. engagement with the Quadrilateral partners (Australia, India, Japan, and the United States) and pushes the U.S. to deepen diplomatic, development, and parliamentary cooperation across the Indo‑Pacific. It also requires the Secretary to seek a written agreement (within 60 days) with the other three Quad countries to create a Quad Inter‑Parliamentary Working Group and, if agreed, establishes a U.S. congressional delegation to participate with rules for membership, meetings, reporting, and limited gift acceptance.

The law is procedural and organizational: it sets timelines and content requirements for the administration’s strategy, encourages expanded Quad dialogues and infrastructure financing through development institutions, and creates a formal mechanism for legislative-to-legislative engagement without authorizing new appropriations.