Standard building HVAC practice includes custom control sequences of operations (SOO). The SOO is often dumbed down to “keep it simple” to the point that the SOO is not compliant with codes and standards such as Standard 90.1/Title 24 (energy codes) and Standard 62.1/Title 24 (ventilation codes). ASHRAE Guideline 36-2021, High-Performance Sequences of Operation for HVAC Systems, is created to address these issues. It includes best-in-class control SOO optimized to minimize energy use, maximize comfort, and improve indoor air quality. It is intended to be preprogrammed and pre-debugged by control system manufacturers. ASHRAE Guideline 36 has the potential to have a more significant impact on building energy use than any other ASHRAE standard or guideline.