ASME VIII-1 provides design rules for nozzles subject to pressure. It also requires consideration of external loads such as those imposed by attached piping. The Code does not provide rules for external loads so the methods from WRC 107, WRC 297 and more recently WRC 537 are used. WRC 107, WRC 297 and WRC 537 are valid for many, but not all, nozzle geometries encountered in practice. For example, the WRC methods do not cover nozzles on blind flanges or flat heads. API 660 heat exchangers with nozzles on bolted covers can, however, be handled with FEA. In general, our pressure vessel FEA can be used to meet the requirements of the Code when nozzles and attachments exceed the limitations of WRC 107 \ WRC 297 \ WRC 537, nozzle fatigue analysis is required or more accurate results are desired.