The U.S. Army Corps of Engineers Pittsburgh District is seeking sources capable of providing on-site inspection, testing, and certification for unfired pressure vessels at various lock and dam facilities. The work involves inspections at approximately 22 sites containing 62 air receivers located along the Ohio, Monongahela, and Allegheny Rivers. The anticipated period of performance is 45 calendar days from the date of call under a firm-fixed-price contract. Interested vendors must provide a capabilities statement and at least three past performance examples. This is a Sources Sought notice for market research only and is not a solicitation.