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This category includes a range of agreements, exchanges of notes, protocols, and conventions between Canada and the United States—along with certain multilateral instruments—across multiple subject areas. These documents address cooperation in competition law enforcement, chancery and diplomatic premises matters, conservation initiatives, amendments to the migratory birds protection framework, transfer of offenders, extradition procedures, labour‑related cooperation, nuclear non‑proliferation assurances tied to uranium transfers, social security coordination, property administration, and customs preclearance for various modes of transportation. Together, these instruments support cross‑border legal cooperation, environmental stewardship, security commitments, administrative coordination, and the facilitation of people, goods, and services across the shared Canada–U.S. border.