What are the marking requirements for the OG-400 program?

ICC-SRCC requires OG-400 certified products to be identified using the OG-400 certification mark shown below. Specific usage of the mark is established in the ICC-SRCC Rules for Certificate and Mark Use.

The SRCC 400 standard also requires that systems must have an attached label explaining how the system is protected from freezing in Section 302.12.3.3.