According to New York City building code, how should Siamese connections be marked?

In the context of the New York City building code, Siamese connections should be marked in a color-coded manner to enhance visibility and recognition. Color coding provides immediate visual cues that allow firefighters and emergency personnel to quickly identify the connection type and intended use in high-pressure scenarios. This system facilitates swift action during emergency responses, ensuring that crucial resources are effectively allocated and utilized. By implementing a standardized color-coding system, while it may seem simple, the safety of occupants and responders can be significantly improved by enabling clear communication about the resources available at a particular static location.