Guam Host Community Compensation Act

This bill modifies Guam's relationship with citizens of the Freely Associated States (Federated States of Micronesia, Marshall Islands, and Palau). It requires individuals from these nations seeking temporary work or study status in Guam to provide proof of employment or enrollment in education within 10 business days of arrival, plus proof of residence. It also mandates that federal prisons, not state/local facilities, house FAS citizens convicted of felonies in the U.S., with the Bureau of Prisons reimbursing prior incarceration costs. Additionally, it extends federal grant authorizations for Guam's compensation program until 2043. The bill directly affects FAS citizens residing or traveling to Guam under Compact agreements.