The Department of the Interior intends to award a sole source, firm-fixed-price contract to REES Scientific Corporation for services related to REES Monitoring Systems. Work will be performed at the NIH Bethesda Campus, with a 12-month period of performance. The applicable NAICS code is 811210 with a size standard of $34 million. Interested parties may identify their interest and capabilities in writing, though this notice is not a request for quotes.