1. The employee’s service is performed entirely within the Commonwealth;

2. The employee’s service is performed both within and without the Commonwealth, but the service performed without the Commonwealth is incidental to the employee’s service within the Commonwealth; or

3. Some of the service is performed in the Commonwealth; and

a. The base of operations or, if there is no base of operations, the place from which the service is directed or controlled is in the Commonwealth; or

b. The base of operations or the place from which the service is directed or controlled is not in any state in which some part of the service is performed, but the employee’s residence is in the Commonwealth.