This recommended practice is a companion document for IEEE Std 1597.1-2008.1 It provides examples and problem sets to be used in the validation of computational electromagnetics (CEM) computer modeling and simulation techniques@ codes@ and models. It is applicable to a wide variety of electromagnetic (EM) applications including but not limited to the fields of electromagnetic compatibility (EMC)@ analysis of radar cross section (RCS)@ signal integrity (SI)@ and the analysis of antennas. This document shows how to validate a particular solution data set by comparing it to the data set obtained by measurements@ alternate codes@ canonical@ or analytic methods. Purpose This recommended practice serves as an aid to CEM modelers and analysts in the selection and application of appropriate computer modeling and simulation methodologies@ physics@ and solution techniques to achieve accurate results. It also serves to complement measurements and EM design tasks for a range of progressively complex problems through the use of modeling problem examples for small-to-large scale canonical@ benchmark@ and standard validation problems. Finally@ this recommended practice provides a detailed description of a validation process@ i.e.@ the Feature Selective Validation (FSV) method@ which compares a particular solution data set to a reference data set. 1 Information on references can be found in Clause 2.