This document is a Request for Proposals (RFP) issued by the United States Department of Agriculture (USDA) National Animal Disease Center (NADC) in Ames, IA for the Repair & Maintenance of USDA Bldg. 3 & 4 Exterior Brick. The solicitation number is 12505B24R0020, and the magnitude of construction is between $500,000 and $1,000,000. The contract has a period of performance of 360 days after receipt of the Notice to Proceed. This requirement is a Total Small Business Set Aside with the associated NAICS Code of 238140 Masonry Contractors and a small business size standard of $19.0 million. Two site visits have been scheduled for June 18 and June 20, 2024, and all questions must be submitted by June 27, 2024. The solicitation and associated information are only available on the Contract Opportunities page at sam.gov, and the use of biobased products is required to the extent reasonably available.