The updated “Large Facilities Manual (LFM)” under the new title “Major Facilities Guide (MFG)” is scheduled to be in effect in Fall 2019. This revision adds a section for guidance on mid-scale research infrastructure projects; updates sections related to NSF policy on research infrastructure, roles and responsibilities for NSF staff, divestment stage, earned value management, cybersecurity, and property management; and clarifies cost estimating requirements including the construction stage total project costs and NSF policy on contingency and reporting requirements. This session will be a brief presentation of the changes and give participants the opportunity to ask questions regarding these changes.