Laboratory equipment should be calibrated and/or qualified to demonstrate suitability for the intended use. Laboratory systems including equipment are amongst key targets of FDA inspections. They are considered high risk systems because they have a high impact on product quality. Despite the fact that equipment calibration and qualification is nothing new and companies spend a lot of time, it is a frequently cited deviation in FDA inspectional observations and warning letters. Companies are unsure on what exactly to qualify, test and document.