This bill modifies the visa waiver program for Guam and the Northern Mariana Islands by establishing stricter procedures for suspending the program for specific countries. The legislation requires the Department of Homeland Security to base any suspension on documented facts and to consult with multiple federal agencies, territorial governors, and Congress before taking action. Before suspending the program, the Secretary must prepare an economic impact assessment showing how the suspension would affect tourism, employment, and government revenues in the two territories. The bill also mandates a 60-day notice to Congress before any suspension takes effect, though the Secretary can suspend admissions immediately in genuine national security emergencies. Additionally, the legislation requires India, the Philippines, Vietnam, Thailand, Indonesia, and Mongolia to be included as eligible countries in the visa waiver program unless they meet specific grounds for suspension, and the Secretary must review any suspension every 180 days to determine if it remains necessary.