Section 2.04 - Questions of Representation(1) The provisions of 456 CMR 14.00: Questions of Representation, except 456 CMR 14.06(1): Contract Bar and 14.07: Employees of the Commonwealth, are applicable to all proceedings conducted under M.G.L. c. 150A, §§ 5 and 5A, except that all references to M.G.L. c. 150E, § 4 in 456 CMR 14.00 shall be considered references to M.G.L. c. 150A, §§ 5 or 5A.(2) Except for good cause shown, no petition filed under the provisions of M.G.L. c. 150A, §§ 5 or 5A, and no petition filed pursuant to 456 CMR 14.02(2) or 14.03(2) seeking to alter the composition or scope of a unit during the term of an existing valid collective bargaining agreement, shall be entertained unless such petition is filed no more than 90 days and no fewer than 60 days prior to the termination date of said agreement. A petition to alter the composition or scope of an existing unit by adding or deleting job classifications which have been created or whose duties have been substantially changed since the effective date of the collective bargaining agreement may be entertained at other times. No collective bargaining agreement shall operate as a bar for a period of more than three years.Amended by Mass Register Issue 1322, eff. 9/23/2016.