The ICE FROST Act provides supplemental pay increases to federal law enforcement officers performing immigration enforcement operations, such as identifying and apprehending individuals unlawfully present in the United States. All covered employees would receive a 25 percent supplemental payment on their annual salary, paid as a lump sum on the first day of the first pay period after the bill's enactment and annually thereafter. Employees working in nine designated metropolitan areas—including Chicago, Los Angeles, New York, San Francisco, and Washington-Baltimore—would receive an additional 15 percent hazardous duty supplement, with the ability for the Office of Personnel Management to designate other high-risk areas based on violent crime levels, criminal organization activity, or documented threats against immigration officers. The bill also imposes new surcharges on remittance transfers (money sent to foreign countries), adding $199 for transfers to twelve specified countries deemed high-risk and $99 for transfers to countries with visa overstay rates exceeding 2 percent, with revenue from these surcharges presumably intended to fund the supplemental payments.