The USGS Geology Lower Mississippi-Gulf Water Science Center requires 90 new GPS Tracking units for delivery to Little Rock, AR. Devices must be delivered within 30 days after receipt of order, with a service period from July 8, 2026, through July 7, 2027. No budget amount is specified. Vendors must be registered in SAM.gov and comply with the Buy American Act, including disclosure of any foreign end products. This opportunity is open to all responsible sources.