US HB2602

Prohibits the Executive branch from implementing any reorganization of the Department of State without specific statutory authorization from Congress and submission of a detailed plan to congressional committees

Requires the Secretary of State to submit reorganization plans that include justification for changes, impact analysis on diplomatic operations, consular services, intelligence capabilities, and humanitarian assistance delivery

Mandates assessment of risks including how U.S. competitors might exploit diplomatic downsizing, workforce impact analysis, implementation timelines, and certification that no federal laws or employee rights will be violated

Imposes penalties for noncompliance: upon Comptroller General certification of violations, federal funds would be blocked for Department of Government Efficiency activities and official travel by politically appointed State Department officials

Defines "reorganization" as any action requiring prior consultation under section 7063 of Public Law 118-47, with oversight by House and Senate Foreign Affairs/Relations and Appropriations committees