The Allegiance Act of 2025

Prohibits showing flags of countries other than the United States anywhere on the United States Capitol Grounds and bars Members of the House (including Members‑elect) and Senators from using their official office funds to purchase non‑U.S. country flags. The measure targets two specific practices: public display on Capitol Grounds and office-funded purchases of foreign country flags.

It does not specify enforcement mechanisms, penalties, or an effective date, nor does it address purchases made with personal funds or gifts from third parties outside the official office fund restriction.