Regulatory and informational markers are easily identified through which features?

Regulatory and informational markers are primarily identified by their distinctive white color accompanied by orange geometric shapes. This design is specifically utilized to convey important information and regulations to boaters, such as directions, hazards, and other critical navigational information. The use of white serves as a base color, which is standard for regulatory signage, while the orange shapes stand out clearly against this background, making it easier for boaters to recognize and understand the information being communicated. This clarity is essential for safe navigation on the water.

In contrast, other colors and shapes mentioned in the alternatives do not conform to the standard used for regulatory and informational markers. For instance, the black shapes on a green background primarily indicate navigational aids related to channel limits, while red colors often signify markers that indicate the right-hand side of the channel. Blue colors with white symbols are typically used for navigational hazards or information related to emergency services, which further demonstrate the unique identification system for different types of markers on the water. Understanding these distinctions is crucial for safe boating practices.