Pro Hac Vice
1) to allow by silence, agreement or giving a license. 2) a license or other document given by an authorized public official or agency (building inspector, department of motor vehicles) to allow a person or business to perform certain acts. these can include building a structure, using a building, driving on the highway, conducting a retail business, and dozens of other activities. the purpose of permits is supposedly to guarantee that laws and regulations have been obeyed, but they also are a source of public revenue.