A permanent resident (called lawful permanent resident or LPR) or conditional resident (CR) who has remained outside the United States for longer than one year, or beyond the validity period of a Re-entry Permit, will require a new immigrant visa to enter the United States and resume permanent residence.  You can learn more about Returning Resident Visas on usvisas.state.gov.

Appointments: All appointments at U.S. Embassy Budapest for Family and Employment-Based Visa application interviews are scheduled by the National Visa Center. Diversity-based visa application interviews are scheduled by the Kentucky Consular Center. In all other cases, including requests for information packets for pending cases, visa/passport/document pick-up, to submit additional documents, to abandon LPR status or to request a boarding letter, please visit the Contact us page on Visa Information and Appointments and send an e-mail.