Container Closure Integrity (CCI) testing ensures that pharmaceutical packaging systems maintain sterility and product quality throughout their shelf life. USP <1207> provides a detailed framework for evaluating the integrity of container closure systems, offering guidance on testing methodologies, validation, and regulatory expectations. By following these guidelines, manufacturers can verify the reliability of their packaging and address potential risks, such as contamination or leakage. USP <1207> emphasizes the use of advanced, reliable, and non-destructive testing methods to support consistent results. This approach strengthens compliance with regulatory requirements while helping ensure safe and effective pharmaceutical products reach patients.