53 Pa.C.S. § 1381
(b) Scope of subchapter.— This subchapter applies to the following entities:
(2) Municipal authorities created by any municipal corporation which is subject to this subchapter.
This subchapter does not apply to cities of the first class, second class or second class A.
(Feb. 18, 1998, P.L.175, No.27, eff. 60 days)