OSHA regulations state that barricade markings should be what color?

Barricade markings that are yellow and black are specifically used to indicate caution. According to OSHA regulations, the color scheme is designed to alert individuals to potential hazards, ensuring that those in the vicinity are aware of risks that may not be immediately visible. The combination of yellow, symbolizing caution, and black, which provides a stark contrast, makes these markings highly visible and effective for warning purposes.

This use of colors helps to maintain safety standards in the workplace by guiding individuals toward necessary precautions when navigating around potentially dangerous areas or operations. Using other color combinations, such as red and white or blue and white, are designated for different meanings—red often signifies danger or stop, while blue is typically used for informational signage. Green indicates safety-related information. Hence, yellow and black is the correct choice for barricade markings due to their specific role in safety communication.