Babcock and Wilcox continues to expand its NOx control experience and technology along several fronts. The Dual Register Burner/Compartmented Wind box system is successful performing on 35,200 megawatts of capacity in a wide range of coal/boiler applications. In addition, there are several new low NOx systems described in this paper. The Enhanced Ignition Dual Register Burner and the Hitachi-NR burners offer improvement for difficult-to-burn fuels and for further NOx reduction, respectively. In-Furnace NOx Reduction utilizes returning technology to achieve extremely low NOx emissions for gas, oil, or PC and can be applied in new or retrofit situations. Also, the Low NOx cell is being developed for direct retrofit for the unique cell burner design. Circulating fluidized beds with low NOx emissions are being sold for a variety of application. Finally, Furnace Sorbent Injection combined with low NOx burners is providing a means of simultaneous NOx/SO2 reduction for PC units.