On September 24, 2024, the Office of Management and Budget (OMB) released Memorandum M-24-18, Advancing the Responsible Acquisition of Artificial Intelligence in Government (Memo). The 36-page Memo builds on OMB’s March 2024 guidance governing federal agencies’ use of AI, Memorandum M-24-10, which we reported on here. The Memo addresses requirements and guidance for agencies acquiring AI systems and services, focusing on three strategic goals: (i) ensuring collaboration across the federal government; (ii) managing AI risks and performance; and (iii) promoting a competitive AI market.