The Department of Commerce, specifically the National Oceanic and Atmospheric Administration (NOAA), intends to negotiate a sole source contract with NortekUSA, Inc. for the procurement of Nortek echosounders to be delivered to La Jolla, California. This acquisition is critical as the echosounders are essential for NOAA's Ecosystem Science Division's glider-based program, which assesses zooplankton and fish populations in the Southern Ocean and U.S. Exclusive Economic Zone using active acoustics. The unique specifications of the Nortek echosounders, which cannot be substituted or modified by similar products, are vital for the compatibility of NOAA's data processing systems developed over many years. Interested parties who believe they can meet the requirements may submit documentation to the primary contact, Jamie Rosales, at jamie.rosales@noaa.gov within 15 days of this notice, with delivery expected within 120 days from the award date.