Section 581 - Scope of subchapter(a) Commonwealth agencies.--Except as provided in subsection (b), this subchapter applies to all Commonwealth agencies.(b) Exception.--This subchapter does not apply to: (1) Proceedings before the Department of Revenue, the Department of the Auditor General or the Board of Finance and Revenue involving the original settlement, assessment or determination or resettlement, reassessment or redetermination, review or refund of taxes, interest or payments made into the State Treasury.(2) Proceedings before the Secretary of the Commonwealth under the act of June 3, 1937 (P.L. 1333, No. 320), known as the Pennsylvania Election Code.(3) Proceedings before the Department of Transportation involving matters reviewable under 42 Pa.C.S. § 933 (relating to appeals from government agencies).(4) Proceedings before the State System of Higher Education involving student discipline.(c) Local agencies.--This subchapter applies to all local agencies.2006, Nov. 29, P.L. 1538, No. 172, §3, effective in 60 days [ 1/29/2007].