The DOE Building Energy Codes Program conducted a series of virtual seminars featuring a collection of timely and emerging topics pertinent to residential and commercial buildings. While the National Energy Codes Conference (NECC) remains postponed, the discussion continues! The NECC Seminar Series provided an opportunity to highlight key issues and challenges, recent updates, as well as the various forms of technical assistance available to state and local governments. Seminars were held weekly from September to December 2020. Each materialized across a range of engaging formats, from lectures to expert panels to interactive discussions.