Usage Law and Legal Definition

Usage refers to long-continued, firmly established, and generally accepted practice or procedure. It denotes something that people are accustomed to. Generally, a uniform certain usage exists in a particular locality and it binds the people who enters into transaction upon the same on the basis of presumed familiarity.

In Agius, Ltd. v. Perkins Co., 151 F. 958 (U.S. Court of Appeals 1907), the court defined common usage “to mean in accordance with the usual practice in equity or at common law as the case may have been.”