The Indiana Boundary Line Agreement (BLA) is a legal agreement that defines and demarcates the borders and boundary lines of the state of Indiana, United States. It serves as a clear and legally binding agreement between neighboring states or territories, aiming to avoid or resolve any disputes related to territorial boundaries. The BLA primarily focuses on defining the boundaries between Indiana and its neighboring states, which include Illinois, Michigan, and Ohio. The agreement is essential for determining the exact location of the state's borders, as well as establishing jurisdictions and responsibilities of each state within their respective territories. This agreement plays a crucial role in various aspects such as land ownership, taxation, voting districts, law enforcement, and resource management. It ensures that each state's government can efficiently administer its territory and provides a framework for cooperation and coordination between neighboring states. The Indiana Boundary Line Agreement is a dynamic document that can undergo revisions and updates as needed. Over time, new treaties or agreements may be added to the existing BLA, in order to address specific border-related issues arising from changes in demographics, development, or other circumstances. These revisions reflect adjustments made to accommodate changes in population growth, urbanization, infrastructure development, or new geographical features. However, it is important to note that there is only one Indiana Boundary Line Agreement, which covers all the relevant segments of the state's borders with neighboring states. It does not have different types; instead, it remains a comprehensive agreement meant to establish and maintain the clarity and integrity of Indiana's boundary lines.