What is the focus of Part A of the COLREGs?

Part A of the COLREGs, titled "General Rules," lays the foundation for the entire set of regulations aimed at preventing collisions at sea. This section establishes key definitions, responsibilities, and fundamental principles that govern the conduct of vessels when navigating in maritime environments. Among other directives, it clarifies the meaning of terms like "vessel," "underway," and "restricted visibility," which are crucial for understanding the applicable regulations.

The rules outlined in Part A emphasize the obligations of all mariners to avoid collisions, promote safe practices, and ensure the maritime environment remains orderly. It serves as a basis for Part B, which includes the specific navigation rules that vessels must follow, depending on their type and situation. Thus, understanding Part A is essential for any mariner as it informs their obligations and the framework within which they operate while at sea.