86 STAT. ]
PUBLIC LAW 92-259-MAR. 22, 1972
91
If the proceeding has not been concluded and an order made within the period of suspension or suspensions, or if the Board shall otherwise so direct, the proposed rate, fare, charge, classification, rule, regulation, or practice shall go into effect subject, however, to being canceled when the proceeding is concluded. This paragraph shall not apply to any initial tariff filed by an air carrier or foreign air carrier. During the period of any suspension or suspensions, or following rejection or cancellation of a tariff, including tariffs which have gone into effect provisionally, the affected air carrier or foreign air carrier shall maintain in effect and use the rate, fare, or charge, or the classification, rule, regulation, or practice affecting such rate, fare, or charge, or the value of service thereunder, which was in effect immediately prior to the filing of the new tariff. "(2) With respect to any existing tariff of an air carrier or foreign ^,^^^^„^^^"^ tarm, air carrier stating rates, fares, or charges for foreign air transportation, hearing. or any classification, rule, regulation, or practice affecting such rate, fare, or charge, or the value of the service thereunder, the Board is empowered, upon complaint or upon its own initiative, at once and, if it so orders, without answer or other formal pleading by the air carrier or foreign air carrier, but upon reasonable notice, to enter into a hearing concerning the lawfulness of such rate, fare, or charge, or such classification, rule, regulation, or practice; and pending such hearing and the decision thereon, the Board, upon reasonable notice, and by filing with such tariff, and delivering to the air carrier or foreign air carrier affected thereby, a statement in writing of its reasons for such suspension, and the effective date thereof, may suspend the operation of such tariff and defer the use of such rate, fare, or charge, or such classification, rule, regulation, or practice, following the effective date of such suspension, for a period or periods not exceeding three hundred and sixty-five days in the aggregate from the effective date of such suspension. If, after hearing, the Board shall be of the opinion that such rate, fare, or charge, or such classification, rule, regulation, or practice, is or will be unjust or unreasonable, or unjustly discriminatory, or unduly preferential, or unduly prejudicial, the Board may take action to cancel such tariff and prevent the use of such rate, fare, or charge, or such classification, rule, regulation, or practice. If the proceeding has not been concluded within the period of suspension or suspensions, the tariff shall again go into effect subject, however, to being canceled when the proceeding is concluded. For the purposes of operation during the period of such suspension, or the period following cancellation of an existing tariff
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