The scope of this standard addresses the major steam temperature control subsystems in boilers with steaming capacities of 200@000 lb/hr (25 kg/s) or greater. These subsystems include@ but are not limited to@ superheat temperature control and reheat temperature control. Specifically excluded from consideration are turbine bypass control@ motor control logic@ combustion control@ sootblower control@ and controls associated with fluidized bed- and stoker-fired furnace combustion units.