The electric utility industry is often encouraged or required to share corridors with other linear facilities, such as pipelines and railroads. Electric transmission lines can electromagnetically couple onto and energize adjacent facilities, resulting in electrical hazards to personnel and equipment. Guidance for analyzing these hazards is limited. The purpose of this guide is to provide general guidance on when a study may be required to analyze these hazards, what data is needed for a study, available industry compliance limits, general scenarios that may need to be analyzed, and sample mitigation approaches. This guide aids users, from both the electric utility and affected facility, in understanding the concerns and to develop approaches for studying and mitigating ac interference issues on their systems. While the guide focuses on co-located transmission lines and pipeline or railroad facilities, much of the information applies to similar linear facilities.