 The critical question approach to schemes suggests that a credible argument from authority must include acceptable premises of the form outlined in the definition of the scheme, and is valid if it is backed by answers to the scheme’s critical questions. Taking the ‘full’ approach, a valid argument from authority must include the premises that define it as as a good argument as explicit (or possibly implicit) premises. In both cases, the result is an account of premise acceptability and validity which is tailored to specifically apply to arguments from authority. 