Subterranean Border Defense Act

This bill, called the Subterranean Border Defense Act, would require U.S. Customs and Border Protection (CBP) to file a report every year on how it is carrying out its plan to find and stop illegal cross‑border tunnels. Right now, CBP only has to report once, within a year of creating the plan. This change makes the reporting ongoing so progress is tracked regularly .

Key points:

• Who is affected: CBP and communities along the U.S. border where illicit tunnels may be used for smuggling.
• What changes: Moves from a one‑time report to required annual reports on how the anti‑tunnel plan is being put into action.
• When: Every year going forward, rather than just once after the plan is developed.