Grounding is recommended and is to be completed by a licensed electrician. Be sure to follow all local electrical codes and standards for grounding. The National Electrical Code does not address applying conductive paint to walls. However, because this product does not carry a UL or CSA listing, some electrical inspectors may not be comfortable approving the installation. An electrical engineer may be required to certify the installation. Check with your local inspector first. To ensure an adequate ground connection, we recommend using the YSHIELD Ground-Connection-Set ES and EB. Step by step instructions for the mounting of the ground connection set are included.