This bill, titled the WIPP Economic Assistance Assurance Act of 2026, seeks to amend the Waste Isolation Pilot Plant Land Withdrawal Act. Its primary purpose is to ensure that economic assistance payments to communities affected by the Waste Isolation Pilot Plant (WIPP) continue beyond their original authorization. The legislation specifically removes the previous 14-year authorization limit on these payments. Instead, it mandates that such assistance will now extend through the fiscal year during which transuranic waste shipments to or from WIPP have been permanently terminated, providing long-term financial stability to the host communities.