This assertion is made in spite of the absence of any hearing requirement in section 412, and in spite of the fact that several judicial decisions have explicitly noted this omission. See Fugazy Travel Bureau, Inc. v. CAB, 121 U.S.App.D.C. 355, 350 F.2d 733 (1965); Railway Express Agency, Inc. v. CAB, 120 U.S.App.D.C. 228, 345 F.2d 445, cert. denied, 382 U.S. 879, 86 S.Ct. 162, 15 L.Ed.2d 120 (1965); McManus v. CAB, 310 F.2d 762 (2d Cir. 1962). However, none of these cases can be considered dispositive of the issue presently before us; and petitioners urge that in the circumstances of this case, the Board was required to hold an evidentiary hearing.