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State Constitutions: O

Information on researching state constitutions and their history. Includes a 50-State A to Z list of resources for finding the full text of state constitutions, information on amendment process, pending and historical amendments, artifacts and documents.

Ohio

Ohio General Assembly

Oklahoma

Oklahoma State Legislature

  • Pending Amendments and Historical Amendments Considered (back to 1993)
    • Bill Tracking Service
      • From this page, you can select a congressional session to search, choose either House or Senate Joint Resolutions (or choose both by Ctrl-clicking both House and Senate Joint Resolutions), and make sure “Constitutional Amendment” is selected under Subject.
  • Resources, Artifacts and Documents

Oregon

Oregon State Legislature

  • Amendment Process, (Article XVII of Oregon state constitution)