Several guidelines, which are to be considered while evaluating electromagnetic field interference (EMI), are presented. The accuracy of the EMI study depends on the use of the appropriate soil resistance for each segment of the pipeline. It is stated that the safety of equipment connected to the pipeline is essential to both utilities and industries and also helps in saving operation and maintenance (O & M) costs. It is observed that when steel pipelines are installed close to overhead electric transmission lines, interference can occur between the electric lines fields and the pipeline.