Concerning the reduction of building greenhouse gas emissions, and, in connection therewith, requiring the director of the Colorado energy office and the executive director of the department of local affairs to appoint an energy code board that develops two model codes, requiring local governments and certain state agencies to adopt and enforce codes that are consistent with the model codes developed by the energy code board, creating the building electrification for public buildings grant program, creating the high-efficiency electric heating and appliances grant program, and establishing the clean air building investments fund.