Industrial machinery operates in electrically complex environments where stable and reliable performance is essential. This white paper explains the fundamentals of electromagnetic compatibility (EMC) in industrial settings, outlining how emissions and immunity affect machinery operation, safety, and system reliability. It examines common sources of electromagnetic interference (EMI) found in manufacturing and heavy industrial environments, reviews applicable global and regional EMC standards, and describes key EMC test methods used for industrial equipment. By highlighting best practices for integrating EMC testing into product development and deployment, this paper provides manufacturers and engineers with practical insight into achieving compliant, robust, and globally market‑ready industrial machinery.