Section 14.20 - Bars to Petitions for Certification by Written Majority Authorization(1)Withdrawal Bar. Except for good cause shown, no Petition for Certification by Written Majority Authorization shall be entertained in a same or similar bargaining unit within which, after the selection or designation of a neutral, but before the verification process, the petitioner withdrew from a prior Petition for Certification by Written Majority Authorization, or withdrew a petition filed under the provisions of M.G.L. c. 150E, § 4, within the preceding six months.(2)Verification/Election Year Bar. Except for good cause shown, no Petition for Certification by Written Majority Authorization shall be entertained in a same or similar bargaining unit within which a neutral has conducted a written majority authorization verification process in the preceding 12 months, or within which a valid election has been held in the preceding 12 months.(3)Certification Year Bar. Except for good cause shown, no Petition for Certification by Written Majority Authorization shall be entertained in a same or similar bargaining unit represented by a bargaining representative certified through the written majority authorization process or a valid election process in which the Department has issued a certification within the preceding 12 months.Amended by Mass Register Issue 1322, eff. 9/23/2016.