Section 293.12 - Revocation of exemption(a) The Department, upon complaint or upon its own initiative, may, immediately and without hearing, revoke, in whole or in part, the exemption granted by this part with respect to a carrier or carriers, when such action is in the public interest.(b) Any such action will be taken in a notice issued by the Assistant Secretary for Aviation and International Affairs, and will identify the tariff matter to be filed, and the deadline for carrier compliance.(c) Revocations under this section will have the effect of reinstating all applicable tariff requirements and procedures specified in the Department's Regulations for the tariff material to be filed, unless otherwise specified by the Department.