71 Pa.C.S. § 5103

Notice by publication, including, without being limited to, newsletters, newspapers, forms, first class mail, letters, manuals and, to the extent authorized by a policy adopted by the board, electronically, including, without being limited to, e-mail or Internet websites, distributed or made available to members and participants in a manner reasonably calculated to give actual notice of the provisions of this part that require notice to members or participants shall be deemed sufficient notice for all purposes.