Many of the oversight agencies have requirements that inspections be performed routinely and at the least, annually. The major categories of inspections are: biological safety, chemical safety, fire and life safety, radiation safety, and controlled substances. Therefore, at BU and BMC, the program is designed to perform one focused Category B per calendar quarter for each of these five major categories, allowing for quarterly Category A inspections. However, the frequency and intensity of inspections will be adjusted based on the risk assessment and/or as mandated by the oversight committees.