Ministerial
Describes a duty that an official must perform in a set way, without using judgment or discretion, once the required conditions are met. For example, when a party’s default is shown by affidavit or otherwise, the clerk must enter it (Fed. R. Civ. P. 55(a)). A ministerial act is contrasted with a discretionary act. Courts can sometimes order an official to perform a ministerial duty through mandamus (see 28 U.S.C. § 1361 for federal officers).
