Which rules are referred to as the "special rules" in the U.S.?

The term "special rules" in the context of U.S. maritime regulations specifically refers to the U.S. Inland Rules, which are applicable to certain waterways. These rules are designed to address unique situations that are not covered by the International Regulations for Preventing Collisions at Sea (COLREGs). The U.S. Inland Rules take into account the particular characteristics and needs of domestic waters, addressing how vessels should navigate in various conditions and situations that may arise.

This distinction is important because while the COLREGs set comprehensive international standards, the special rules provide additional guidance for specific regions, ensuring that they accommodate local navigation patterns, environmental conditions, and vessel types often seen in those areas. This enhances safety and efficiency for vessels operating inland.

Other aspects such as rules for large commercial vessels, international maritime safety standards, or recreational boating do not encompass the specific context of "special rules" as understood in U.S. maritime law. These categories represent different areas of regulation but do not capture the targeted nature of the U.S. Inland Rules that serve particular waterways.