Contractors often assume that government auditors have special authority to interpret the Cost Accounting Standards.  That assumption is easy to understand — auditors frequently take the position that there is just one “right” way for a company to do its contract cost accounting, based on how other companies do things.  But contractors should know that CAS is flexible and generally gives them options about how to comply, based on the circumstances of their business.  In short, a contractor’s business judgment matters, and contractors can use it to push back on auditors who take an overly rigid view of CAS.