34 Pa. Code § 95.22
A petition by a public employer for decertification of a public employe representative shall be filed with the Board not sooner than 90 days nor later than 60 days before the expiration date of a collective bargaining agreement; or after the expiration date until a new written agreement has been entered into; or, if no collective bargaining agreement has been entered into, not sooner than 1 year from the date the certification had become effective. The petition shall be on the form supplied by the Board and contain the following:
The provisions of this § 95.22 adopted October 23, 1970, effective October 24, 1970, 1 Pa.B. 419; amended July 30, 1976, effective July 31, 1976, 6 Pa.B. 1791. Immediately preceding text appears at serial page (17320).