; and (6) the term predispute joint-action waiver means an agreement, whether or not part of a predispute arbitration agreement, that would prohibit, or waive the right of, one of the parties to the agreement to participate in a joint, class, or collective action in a judicial, arbitral, administrative, or other forum, concerning a dispute that has not yet arisen at the time of the making of the agreement. 502. No validity or enforceability (a) In general Notwithstanding any other provision of this title, no predispute arbitration agreement or predispute joint-action waiver shall be valid or enforceable with respect to an employment dispute, consumer dispute, antitrust dispute, or civil rights dispute. (b) Applicability (1) In general An issue as to whether this chapter applies with respect to a dispute shall be determined under Federal law. The applicability of this chapter to an agreement to arbitrate and the validity and enforceability of an agreement to which this chapter applies shall be determined by a court, rather than an arbitrator, irrespective of whether the party resisting arbitration challenges the arbitration agreement specifically or in conjunction with other terms of the contract containing such agreement, and irrespective of whether the agreement purports to delegate such determinations to an arbitrator. (2) Collective bargaining agreements Nothing in this chapter shall apply to any arbitration provision in a contract between an employer and a labor organization or between labor organizations, except that no such arbitration provision shall have the effect of waiving the right of a worker to seek judicial enforcement of a right arising under a provision of the Constitution of the United States, a State constitution, or a Federal or State statute, or public policy arising therefrom. . (b) Technical and conforming amendments (1) In general Title 9 of the United States Code is amended— (A) in section 1, by striking of seamen, and all that follows through interstate commerce and inserting of