Yes, ECG (electrocardiogram) tests are commonly required for pilots, particularly during Class 1 medical certification, which is mandatory for Commercial Pilot Licence (CPL) and Airline Transport Pilot Licence (ATPL) holders. The ECG is typically conducted as part of the initial medical examination for first-time applicants and may be repeated at renewal intervals, especially for older pilots or those with risk factors for cardiovascular disease. ECG screenings help assess heart rhythm, detect arrhythmias, ischemia, or other cardiac abnormalities that could compromise a pilot’s ability to safely operate an aircraft, allowing timely intervention or further evaluation if needed. Requirements for ECG testing vary by age, medical class, and regulatory authority: for example, many aviation authorities mandate ECGs every 5 years for pilots under 40 and annually or biennially for pilots over 40, with stricter scrutiny for Class 1 pilots than for Class 2 (private pilot) applicants. This ensures that pilots maintain cardiovascular fitness throughout their careers, safeguarding both flight safety and regulatory compliance.