(2) The employer is not the subject of any case or proceeding under title 11, United States Code, or any case or proceeding under similar provisions of state insolvency laws; except that the claim for withdrawal liability of an employer that is the subject of a proceeding described in this paragraph (b)(2) shall be valued under
paragraph (a) of this section if the plan sponsor determines that the employer is reasonably expected to be able to pay its withdrawal liability in full and on time.