57. A clause negotiated and agreed on by the borough council is without effect where it alters the scope of a clause negotiated and agreed on by the city council on a matter other than those referred to in section 49.2.
The same rule applies to any decision made by a person appointed to rule on the subject of a disagreement under section 55.
Where a clause ceases to have effect by reason of the application of this section, the parties shall negotiate in order to replace it.
If the parties fail to agree, sections 53 to 56 apply.
2000, c. 56, Sch. I, s. 57; 2003, c. 28, s. 22.