In order to stay compliant with National Electric Code 426-13, WarmlyYours’ Snow Melt Plaque must be purchased and installed in coordination with a snow-melting system. The code states that embedded snow-melting equipment must be evident by the posting of appropriate caution signs or markings where clearly visible. Thus, this durable cast brass plaque can be easily installed in concrete or asphalt to indicate that the snow-melting equipment is located underneath the material. The plaque is 4” x 4” x 3/8” thick and includes a 1⁄4” diameter x 2” long bolt and nut combination for anchoring.