This memo provides additional clarifications and instructions on the implementation of the goals laid out in section I.F.2 of the Office of Management and Budget (OMB) Memorandum M-22-06 (December 8, 2021) (M-22-06) and section 4.4.13 of the Council on Environmental Quality's (CEQ) Implementing Instructions for Executive Order 14057, Catalyzing Clean Energy Industries and Jobs Through Federal Sustainability (August 2022), that call for all leases to be green leases (effective Sept 2023) and for new leases to be in net-zero emissions buildings starting in 2030. This memo and relevant instructions apply to leases for buildings from the private sector, not buildings agencies are leasing from GSA.