I did some googling, and the new standard is ASHRAE 90.1-2019. Found a site that has a summary document: https://sftool.gov/Content/attachments/Iswg/iswg-polic

I did some googling, and the new standard is ASHRAE 90.1-2019. Found a site that has a summary document: https://sftool.gov/Content/attachments/Iswg/iswg-policies-strategies/Federal_Bldg_Efficiency%20Rules%20-%20Baker-4-14-22%20r1.pdf https://sftool.gov/Content/attachments/Iswg/iswg-policies-st... Page 7 of this pdf has a list of 29 items that are expected to increase efficiency. This includes things like lighting control, and efficiency of mechanical systems (HVAC).