2021-05-19 11:04 Method validation is essential for compliance with current good manufacturing specifications (CGMP) and good laboratory specifications (GLP). Analytical method validation (AMV) is the requirement of the biopharmaceutical industry for all methods used in the testing of raw materials, in-process materials, final containers and excipients. The development and validation of analytical methods are critical to drug development and access to reliable analytical data that you need to reach your next development milestone.