From Pennsylvania Fish and Boat Commission:
Families and friends visiting Pennsylvania’s popular outdoor spots on the Labor Day holiday weekend can enjoy a day of free fishing, thanks to the Pennsylvania Fish and Boat Commission (PFBC). Labor Day - Monday, Sept. 3 – marks the second of two free fishing days in the Commonwealth.
Fish For Free Days allow anyone – residents and non-residents – to legally fish in Pennsylvania. From 12:01 a.m. to 11:59 p.m. on both days, no fishing license is needed to fish in Pennsylvania's waterways. All other fishing regulations apply.
The first 2012 Fish for Free Day was Memorial Day – Monday, May 28.
“Fish-for-Free days are a convenient way to introduce friends and family to the sport of fishing,” said PFBC Executive Director John Arway. “Many families spend the day at lakes and parks throughout the state. Now they can try fishing at no cost. We know that once people try it, particularly kids, they will see that fishing is a great recreational activity and they will want to do it more.”