State Department foreign per diem posts in Holy See. Each page shows the current lodging and M&IE rates, seasonal breakdown, rate history, and the related DTMO per diem and DSSR allowances for the same post.
Every rate on these pages is available as normalized JSON through the Allowances API — current and historical, by location and effective date.
Data sourced from official public per diem and allowance tables. Not affiliated with any U.S. Government agency.