This bill proposes to amend the Internal Revenue Code of 1986 to allow the termination of tax-exempt status for organizations designated as "terrorist supporting organizations." An organization falls under this definition if it has provided more than a de minimis amount of material support or resources to a designated terrorist organization within a three-year period. Excluded from this definition of material support are actions approved by the Secretary of State with Attorney General concurrence, or humanitarian aid approved by the Office of Foreign Assets Control. Before designation, the Secretary must provide written notice, detailing the alleged support and the recipient organization, and offering a 90-day opportunity to cure . An organization can avoid designation by proving it did not provide the support, making reasonable efforts to retrieve the support and certifying no future support, or challenging the Secretary's decision to withhold descriptive information in court. The Secretary can rescind a designation if it was erroneous, if the organization did not receive proper notice and subsequently cures, or if the suspension periods for all supported organizations have ended. Disputes regarding designation can be resolved through the IRS Independent Office of Appeals, and U.S. district courts have exclusive jurisdiction for certain determinations, including those involving classified information.