Where is the passport office in the us? The Issuing Authority for a US Passport is the US Department of State Passport Agency. The main office is in Washington DC, but there are 25 Regional Offices located throughout the country.Where is honolulu passport office? Listed below are passport office locations in Honolulu, Hawaii. The Honolulu passport offices provide passport services to U.S citizens. Airport – Main Post Office. 3600 Aolele St. Honolulu, HI 96820-9998.Where is the passport office in liverpool? and Address is 101 Old Hall Street, Liverpool, Merseyside L3 9BD, United Kingdom. The Passport Office Liverpool is a regional passport office based at Old Hall Street, Liverpool, Merseyside, United Kingdom.