The Board may, where appropriate, begin a proceeding under this section on its own initiative or on application by the Secretary of Transportation or an interested party. The Board shall, within 90 days after receipt of any such application, determine whether to begin an appropriate proceeding. If the Board decides not to begin a class exemption proceeding, the reasons for the decision shall be published in the Federal Register. Any proceeding begun as a result of an application under this subsection shall be completed within 9 months after it is begun.

The Board may specify the period of time during which an exemption granted under this section is effective.

The Board may revoke an exemption, to the extent it specifies, when it finds that application in whole or in part of a provision of this part to the person, class, or transportation is necessary to carry out the transportation policy of section 10101 of this title. The Board shall, within 90 days after receipt of a request for revocation under this subsection, determine whether to begin an appropriate proceeding. If the Board decides not to begin a proceeding to revoke a class exemption, the reasons for the decision shall be published in the Federal Register. Any proceeding begun as a result of a request under this subsection shall be completed within 9 months after it is begun.

No exemption order issued pursuant to this section shall operate to relieve any rail carrier from an obligation to provide contractual terms for liability and claims which are consistent with the provisions of section 11706 of this title. Nothing in this subsection or section 11706 of this title shall prevent rail carriers from offering alternative terms nor give the Board the authority to require any specific level of rates or services based upon the provisions of section 11706 of this title.

The Board may exercise its authority under this section to exempt transportation that is provided by a rail carrier as part of a continuous intermodal movement.

The Board may not exercise its authority under this section to relieve a rail carrier of its obligation to protect the interests of employees as required by this part.