This webinar introduces the essentials of EMC pre-compliance testing, explaining key standards and why early evaluation is crucial for product reliability. It covers the fundamentals of conducted and radiated EMC measurements, showing how pre-compliance tests help identify issues before full certification. The session then focuses on troubleshooting and optimization techniques, emphasizing how PCB layout and the placement of EMI filter components - illustrated through a Buck converter example - directly influence emission levels. Real measurement results from the Munich EMC lab demonstrate how strategic adjustments improve performance. The webinar concludes with a brief look at the new HIC Munich EMC lab and a Q&A segment, offering practical guidance for implementing EMC improvements throughout the design cycle.