What are the two types of regulatory marks used in navigation?

The two types of regulatory marks used in navigation are signs and buoys. Signs typically refer to stationary markers that provide important information about rules and regulations on waterways, such as speed limits, no-wake areas, or prohibited zones. These signs are often placed in locations where mariners need clear guidance to ensure safe passage and compliance with local boating laws.

Buoys, on the other hand, are floating markers that can also communicate regulations but are often used for navigation, hazard warnings, or information about safe passage areas. Regulatory buoys can be color-coded and marked with specific symbols to indicate the nature of the regulation they represent. Together, signs and buoys play a crucial role in maintaining order and safety on the water by informing boaters of the necessary guidelines that need to be followed.