42 Pa. C.S. § 8501
The following words and phrases when used in this chapter shall have, unless the context clearly indicates otherwise, the meanings given to them in this section:
"Act." Includes a failure to act.
"Commonwealth party." A Commonwealth agency and any employee thereof, but only with respect to an act within the scope of his office or employment.
"Employee." Any person who is acting or who has acted on behalf of a government unit whether on a permanent or temporary basis, whether compensated or not and whether within or without the territorial boundaries of the government unit, including any volunteer fireman and any elected or appointed officer, member of a governing body or other person designated to act for the government unit. Independent contractors under contract to the government unit and their employees and agents and persons performing tasks over which the government unit has no legal right of control are not employees of the government unit.
"Injury." Includes death.
"Judicial determination." Any determination by a court of competent jurisdiction including any settlement approved by such court.
"Local agency." A government unit other than the Commonwealth government. The term includes, but is not limited to, an intermediate unit; municipalities cooperating in the exercise or performance of governmental functions, powers or responsibilities under 53 Pa.C.S. Ch. 23 Subch. A (relating to intergovernmental cooperation); and councils of government and other entities created by two or more municipalities under 53 Pa.C.S. Ch. 23 Subch. A.
42 Pa.C.S. § 8501