61 Pa. Code § 39.2
(b) A person who is a transient vendor shall be required to apply for and obtain a transient vendor certificate from the Department prior to conducting business or otherwise commencing operations within this Commonwealth. Application for a transient vendor certificate shall be a supplement to the Application for Sales, Use, and Hotel Occupancy Tax License Form which may be obtained from the Department. In addition to fully completing the license application form—see § 34.1 (relating to registration)—and any other information the Department might require, a transient vendor shall supply the following information: