DIRECTORY REQUIREMENT
directory requirement.A statutory or contractual instruction to act in a way that is advisable,
but not absolutely essential — in contrast to a mandatory requirement. • A directory requirement is
frequently introduced by the word should or, less frequently, shall (which is more typically a
mandatory word). [Cases: Statutes 227. C.J.S. Statutes §§ 362–369.] [Blacks Law 8th]