This amendment adds solicitation question responses and barrel photos to the attachment section for potential quoters. The opportunity is a combined synopsis/solicitation under FAR Part 12 for commercial items, issued as an RFQ, with quotations requested and no separate written solicitation. USDA–ARS Grassland Soil & Water Research Laboratory requires hazardous waste removal services, including labor, materials, equipment, packaging, transportation, and disposal to safely characterize, package, remove, transport, and dispose of hazardous, chemical, analytical, and laboratory waste listed in the statement of work. Work must comply fully with federal, state, and local hazardous waste management requirements. This acquisition is a total small business set-aside under NAICS 562211, with a small business size standard of $47 million, and all responsible sources may submit a quotation.