; and (B) compensatory damages are available to the extent specified in section 1977A(b) of the Revised Statutes ( 42 U.S.C. 1981a(b) ). 303. Prohibition on mandatory arbitration and protection of concerted legal action (a) Protection of concerted activity (1) Agreements Section 8(a) of the National Labor Relations Act ( 29 U.S.C. 158(a) ) is amended— (A) in paragraph (5), by striking the period at the end and inserting ; and ; and (B) by adding at the end the following: (6) (A) to enter into or attempt to enforce any agreement, express or implied, whereby prior to a dispute to which the agreement applies, a worker (for purposes of this paragraph, as defined in section 401 of title 9, United States Code) undertakes or promises not to pursue, bring, join, litigate, or support any kind of joint, class, or collective claim arising from or relating to the employment of, or provision of services by, such worker in any forum that, but for such agreement, is of competent jurisdiction; (B) to coerce such worker into undertaking or promising not to pursue, bring, join, litigate, or support any kind of joint, class, or collective claim arising from or relating to the employment of, or provision of services by, such worker