Which statement best describes the application of navigational rules on the high seas?

The statement that navigational rules shall apply to all vessels navigable by seagoing vessels is accurate because it reflects the universal nature of these rules. The International Regulations for Preventing Collisions at Sea (COLREGs) are designed to ensure safe navigation and prevent maritime collisions across all types of vessels operating on the high seas. This includes commercial ships, recreational boats, and military vessels alike.

The rules cover various aspects of navigation, such as the conduct of vessels in relation to one another, lighting and shapes for visibility, and sound signals to communicate intentions. This comprehensive framework is vital for maintaining order and safety in marine traffic, regardless of the conditions or the type of vessel.

The other options lack this comprehensive applicability, with some incorrectly suggesting restrictions based on vessel type, weather conditions, or enforcement authority. This underscores the importance of understanding that navigational rules are a fundamental aspect of maritime operations that skillfully accommodate the complexities of high seas navigation.