This is a preliminary sources sought notice to gauge industry interest and capabilities for a future competitive, Firm Fixed Price contract to purchase and install a Neutral Blocking Device at the White Substation in South Dakota. The notice seeks information from small businesses, including 8(a), HUBZone, and Service-Disabled Veteran-Owned Small Businesses, to help with planning and ensure adequate competition. Responses are limited to five pages and must include specific details about the firm's capabilities, past work, and business classification. The anticipated solicitation issuance date is on or about December 1, 2020.