34 Pa. Code § 71.2
Each political subdivision or instrumentality thereof that desires to be covered under the act shall submit in duplicate its plan for benefits under Title II of the Social Security Act (42 U.S.C.A. § 418) and agreement to the Department of Labor and Industry, to the attention of the Bureau of Social Security for Public Employes, Room 1447, Labor and Industry Building, Harrisburg, Pennsylvania 17120, for its approval together with one authenticated copy of the ordinance or resolution passed by the governing body setting forth the authority of the political subdivision or instrumentality thereof for its submission of the plan and agreement.
34 Pa. Code § 71.2
This section cited in 34 Pa. Code § 71.24 (relating to procedures for collection-review).