Pa.'s code is written as such (Section 63)
It is unlawful to fish for game fish with more than two lines of any description, whether fished by rod or by hand, at one time except while ice fishing in accordance with § 63.10 (relating to ice fishing). No more than three hooks may be attached to line used in fishing for game fish. Rods, lines and hooks shall be under the immediate control of the person using them. A fishing device shall be deemed to be under the immediate control of the person using it if, when the terminal device (hook, bait or lure) is taken by a fish, the person using the device has direct control over it and it is not connected at that point to a casting or depth placement aid such as a casting boat or downrigger. Casting or depth placement aids such as downriggers or small remote controlled boats are not prohibited by this chapter.