58 Pa. Code § 51.121
The following words and terms, when used in this subchapter, have the following meanings, unless the context clearly indicates otherwise:
Charter boat-A boat operated as a commercial enterprise which carries passengers for hire for the purpose of fishing on the waters of this Commonwealth.
Charter boat operator-A person who operates or is in actual physical control of the movement of a charter boat.
Commercial enterprise-An operation where a person provides fishing guide or charter boat services in exchange for any consideration, including money, goods or services.
Fishing guide-A person who operates a commercial enterprise whereby he guides or leads other persons for the purpose of fishing on the waters of this Commonwealth.
58 Pa. Code § 51.121