ASHRAE Guideline 36-2021, High-Performance Sequences of Operation for HVAC Systems provides uniform sequences of operation for HVAC systems that are intended to maximize a system's energy effi ciency and performance, provide control stability, and allow for real-time fault detection and diagnostics. Standardized advanced control sequences provide benefi ts including reduced engineering time, reduced programming and commissioning time, reduced energy consumption, improved indoor air quality, and a common set of terms to facilitate communication between specifi ers, contractors, and operators. ashrae.org/bookstore The 2021 edition of the guideline includes 24 addenda that address sequences of control for the following: * Heating hot-water plants * Chilled-water plants * Fan coils * Automatic and dynamic calculation of VAV box minimum airfl ow set points * Miscellaneous improvements and bug fi xeshttp://www.ashrae.org/continuosus-maintenance http://ashrae.org http://www.ashrae.org/permissions http://www.ashrae.org/bookstore