The franchises of both Youngblood and Colonial were issued pursuant to Sec. 7, Ch. 1008, Session Laws of 1947, codified as G.S. 62-121.11, the so-called Grandfather Clause of the Truck Act of 1947.
Under its franchise, Youngblood is an irregular route common carrier, with headquarters at Fletcher, North Carolina, having authority to transport general commodities, except those requiring special equipment, over irregular routes on and west of U. S. Highway No. 1.
Under its franchise, Colonial is both a regular route common carrier and an irregular route common carrier, with headquarters at High Point, North Carolina. As a regular route common carrier, it is authorized to transport general commodities, except those requiring special equipment, over a defined route, between Winston-Salem and Fayetteville. As an irregular route common carrier it has like authority over irregular routes in defined areas both east and west of U. S. *629Highway No. 1. Its irregular route territory and that of Youngblood overlap in a large area, including what is generally regarded the Piedmont section of North Carolina.
Petitioners alleged that Colonial was a duly franchised “regular route common carrier of motor freight in interstate and intrastate commerce.” They made no reference in their petition to Colonial's status as an irregular route common carrier. Even so, their petition prayed approval of an agreement providing for interchange between Young-blood and Colonial without limitation or restriction.
The basic distinction between a regular route common carrier and an irregular route common carrier is that the former is a scheduled operation over a restricted and defined route while the latter is an unscheduled operation within a designated territory but wholly unrestricted as to route. The rules and regulations of the Commission define these terms in detail. See Utilities Commission v. Truck Lines, 243 N.C. 442, 91 S.E. 2d 212.
Regular route common carriers and irregular route common carriers complement each other in serving the public interest. The service rendered by both is required to provide transportation service by truck to all shippers. If the petition were allowed, the result would be as follows: Youngblood and Colonial, in respect of irregular route operations, could provide transportation of intrastate freight by unscheduled operations and without restriction as to route over the greater part of North Carolina. Too, in handling by interchange with a regular route common carrier freight originating at or destined to points outside its territory, Youngblood could pick up and deliver shipments on the route of another regular route common carrier. Thus, if the petition were allowed, petitioners would be permitted to handle selectively shipments now available to a regular route common carrier in its required scheduled operations along its restricted route. In view of the basis of decision, stated below, we make no decision as to whether the evidence supports the Commission’s finding of fact and conclusion that it would not be in the public interest to grant the authority sought by petitioners.
Original Rule 44, effective July 1, 1951, is quoted in full in Utilities Com. v. Fox, 236 N.C. 553, 73 S.E. 2d 464.
Revised Rule 44, promulgated April 30, 1953, is quoted in full in Utilities Com. v. Truck Lines, supra.
The ultimate question presented on second appeal in Utilities Com. v. Fox, 239 N.C. 253, 79 S.E. 2d 391, was whether Fox, an irregular route common carrier, could continue to interchange interstate freight as it had done prior to January 1, 1947. Apparently, the question as *630to whether Fox had asserted rights based on the Grandfather Clause in apt time was not raised.
Sec. 24(2) of the Truck Act of 1947, codified as G.S. 62-121.28(2), in pertinent part, provides: “(2) That except under special conditions and for good cause shown every common carrier by motor vehicle authorized to transport general commodities over regular routes shall establish reasonable through routes and joint rates, charges, and classifications with other such common carriers by motor vehicle, and, with the approval of the Commission, may do so with irregular route common carriers hy motor vehicle, common carriers by railroad and/or express and/or water.”- (Our italics)
It is noted that Revised Rule 44, in substantial part, is in accord with Sec. 24(2) of the Truck Act of 1947. See also Sec. 25 of the Truck Act of 1947, codified as G.S. 62-121.29.
In Utilities Com. v. Truck Lines, supra, Youngblood filed a petition for authority to interchange freight with Helms Motor Express, Inc.., a regular route common carrier. Allowing protestants’ motion, the Commission dismissed the proceeding for want of jurisdiction of the subject matter on the ground that the following jurisdictional defects were disclosed by the pleadings and the record: (1) that Helms Motor Express, Inc., was not a petitioning party to the proceeding, and (2) that petitioner did not allege that Helms Motor Express, Inc., had made, or was desirous of making, an interchange agreement with the petitioner.
This Court affirmed the judgment of the superior court insofar as said judgment affirmed the Commission’s order dismissing the proceeding for want of jurisdiction of the subject matter.
As indicated, the original petition was based squarely on Revised Rule 44; and therein the petitioners sought a determination that the proposed interchanges of intrastate traffic and joint rates would be in the public interest. The purport of their amendment, allowed and made at the hearing on September 20, 1956, is that, independent of the Commission’s finding as to the public interest, they were entitled as of right, under the Grandfather Clause, to do what their original petition prayed that the Commission allow them to do.
On this appeal, for the reason stated below, it is unnecessary to determine whether Youngblood and Colonial, or either of them, had interchange rights under the Grandfather Clause as asserted in their amendment, or the nature and extent of such rights, if any; nor is it necessary to determine whether by delay in asserting such rights, if any, or by notice of and acquiescence in Revised Rule 44, they, or either of them, are precluded from asserting such rights.
We recognize Utilities Com. v. Truck Lines, supra, as authority for *631these propositions: (1) an irregular route common carrier has no legal right to compel a regular route common carrier to interchange intrastate freight; (2) interchange between such carriers must be based on an agreement; and (3) in the absence of such interchange agreement, voluntarily made by such carriers and submitted by them to the Commission, the Commission has no jurisdiction of the subject matter.
We are confronted by this situation. The joint petition of Young-blood and Colonial, based on their agreement, was sufficient to invoke the jurisdiction of the Commission. The Commission did not approve the interchange of freight in intrastate commerce sought by petitioners. It dismissed their petition. However, the Commission, under Revised Rule 44(2), allowed Youngblood and Colonial to interchange freight in intrastate commerce to the extent set forth in paragraph (1) of the Commission’s order, quoted in the statement of facts.
Colonial, which did not except or appeal, is bound by the Commission’s order. The proceeding involves only rights of interchange between Youngblood and Colonial. Such rights are interdependent and must stand or fall together. Since Colonial cannot interchange with Youngblood except to the extent allowed in paragraph (1) of the Commission’s order, it follows that Youngblood cannot interchange with Colonial otherwise than to this extent.
On the basis stated in the preceding paragraph, the judgment of Judge Moore is affirmed.
Neither the order of the Commission nor the judgment of the superior court, in respects challenged by Youngblood, may be considered as precluding Youngblood from asserting the positions taken by it on this appeal in other proceedings, if any, in which these questions arise.
Affirmed.