This is a Request for Proposal for scientific and technical consulting services under NAICS 541690, with award limited to U.S. firms or individuals. The procurement is unrestricted, and the government will make a single best-value award. Offerors must be registered and active in SAM to be eligible, and subcontracting is limited to less than 50% of the proposed price. Contractor and subcontractor employees must be U.S. citizens or lawful permanent residents. The RFP includes the necessary sections for response, including the performance work statement and instructions to offerors.

This is an amended request for proposals for consulting services under NAICS 541690, unrestricted but limited to U.S. firms or individuals. Contractors must use U.S. citizens or lawful permanent residents, and subcontracting is limited to less than 50% of the proposed price. Offerors must be registered and active in SAM to be eligible for award. The government will make a single best-value award based on evaluation factors. The proposal package includes sections B through E, including the performance work statement.

This procurement is unrestricted under NAICS 541690 for other scientific and technical consulting services, with award limited to U.S. firms or individuals. Contractor and U.S. subcontractor employees must be U.S. citizens or lawful permanent residents, and subcontractor use is limited to less than fifty percent of the proposed price. The government will make a single best-value award based on the evaluation factors, and offerors must have an active SAM registration to be eligible. Questions must be submitted via email to the specified addresses only, and any contract awarded to a suspended or debarred contractor is voidable. The solicitation includes the full performance work statement and contractual sections necessary for preparing a proposal.