Enacts new GS 127A-204 to invalidate a predispute arbitration agreement if the agreement requires arbitration of a dispute arising under Article 16 (National Guard Reemployment Rights) of GS Chapter 127A. Specifies that Article 16 supersedes any agreement that reduces, limits, or eliminates any right or benefit provided by the Article, including the establishment of an additional prerequisite to the exercise of a right or the receipt of any benefit. Applies to contracts entered into on or after the date that the act becomes law.