The Visa Integrity Act of 2024 makes overstaying a visa a criminal offense in addition to a civil violation. Under the bill, foreign nationals who stay in the United States beyond their authorized period for 10 or more days would face criminal penalties of up to 6 months in jail and fines between $500 and $1,000 for a first offense, with repeat violations punishable by up to 2 years in prison. The legislation also increases civil penalties for visa violations and requires the State Department and Department of Homeland Security to notify visa applicants about these penalties when they apply and when they enter the country. Additionally, within one year of enactment, the Secretary of Homeland Security must negotiate agreements with Mexico to share immigration enforcement information and create an integrated entry-exit system at the land border. The bill provides limited exceptions for cases involving medical necessity, public safety, or national security concerns.