Berry Amendment Extension Act

Berry Amendment Extension Act - Amends the Homeland Security Act of 2002 to prohibit the Secretary of the Department of Homeland Security (DHS) from procuring specified covered items directly related to national security interests (including clothing, tents, or natural fiber products) that are not grown, reprocessed, reused, or produced in the United States, except to the extent satisfactory quality and sufficient quantity of any such product cannot be procured as and when needed.

Makes additional exceptions for: (1) procurements by vessels in foreign waters, (2) emergency procurements, and (3) purchases for amounts not greater than the simplified acquisition threshold described in military procurement provisions. Requires the Secretary to post a notification that an exception has been applied not later than seven days after the award of the contract.

Directs the Secretary to ensure that: (1) each member of DHS's acquisition workforce who regularly participates in textile acquisition receives training on this Act's requirements, and (2) any such training includes comprehensive information on such requirements.

Requires this Act to be applied in a manner consistent with U.S. obligations under international agreements.