negotiated by the Secretary, an attorney general of any State, a private attorney on behalf of affected employees, or a designated representative of affected employees under the National Labor Relations Act ( 29 U.S.C. 151 et seq.) or the Railway Labor Act ( 45 U.S.C. 151 et seq.). (b) Interaction with other rights and remedies The rights and remedies provided to employees by this Act are in addition to, and not in lieu of, any other contractual or statutory rights and remedies of the employees, and are not intended to alter or affect such rights and remedies, except that the period of notification required by this Act shall run concurrently with any period of notification required by contract or by any other statute. (c) Effect on other laws The giving of notice pursuant to this Act, if done in good faith compliance with this Act, shall not constitute a violation of the National Labor Relations Act ( 29 U.S.C. 151 et seq.) or the Railway Labor Act ( 45 U.S.C. 151 et seq.). 8. Limited regulatory authority (a) In general Except as provided in section 2(11)(B), the Secretary of Labor shall not have authority to promulgate regulations to carry out this Act. The Secretary of Labor may provide guidance that describes— (1) the methods by which employers may provide for appropriate service of notice of bargaining period under section 3(a) and notice of change in employment position or loss of employment under subsection (b) or (c) of section 3 to employees and to representatives of employees