Pro hac vice

In the legal field, pro hac vice (English: /proʊ hæk ˈviːtʃeɪ/) is a practice in common law jurisdictions whereby a lawyer who has not been admitted to practice in a certain jurisdiction is allowed to participate in a particular case in that jurisdiction. Although pro hac vice admission is available in every American jurisdiction, civil law jurisdictions generally have much stricter rules for multi-jurisdictional practice.

The term has a different meaning when used by the Catholic Church or under maritime law.