An award of interim spousal support or final periodic support may be modified if the circumstances of either party materially change and shall be terminated if it has become unnecessary. The subsequent remarriage of the obligor spouse shall not constitute a change of circumstance.

            Acts 1997, No. 1078, §1, eff. Jan. 1, 1998; Acts 2001, No. 1049, §1; Acts 2018, No. 265, §1.