This case presents just one question of statutory interpretation: is intervenor Canadian National Railway Company’s construction of a new tunnel beneath the St. Clair River to replace a 100-year-old tunnel ninety feet to the south “an extension to any of its railroad lines” or “an additional railroad line” within the meaning of section 402 of the Transportation Act of 1920, 49 U.S.C. § 10901(a) (1988), requiring Interstate Commerce Commission approval? The Commission ruled that it was neither. Because the Commission adopted a reasonable interpretation of the statute, and because its application of that interpretation to this case was not arbitrary, we sustain its decision.
I.
The Canadian National Railway operates a tunnel beneath the St. Clair River between Port Huron, Michigan and Sarnia, Ontario. In 1992, Canadian National decided to replace this 100-year-old tunnel with a new tunnel running parallel to and just ninety feet from the existing tunnel. The new tunnel will accommodate the double-stack container ears that have become increasingly popular among shippers. Because the old tunnel is too small to handle double-stack cars, they must be decoupled from the train, taken across the river by barge, and recoupled to the train on the other side. The new tunnel will eliminate the need for decoupling double-stack cars, thus cutting twelve hours from the time required to cross the river between the United States and Canada and making Canadian National’s line significantly more attractive to shippers.
Canadian National, together with Canadian Pacific Limited, owns and operates a second tunnel sixty miles south of Port Huron which runs under the Detroit River between Detroit, Michigan and Windsor, Ontario. Like the old Port Huron tunnel, the Detroit tunnel cannot accommodate double-stack container cars. Upon learning of Canadian National’s plans to replace the Port Huron tunnel, the City of Detroit filed a complaint with the Interstate Commerce Commission claiming that the construction of the new tunnel required Commission approval under section 402(18) of the Transportation Act, 49 U.S.C. § 10901(a). That section requires a covered carrier to obtain a certificate of public necessity from the Commission before constructing or operating “an extension [of] any of its railroad lines” or “an additional railroad line.” Id. The Canadian Pacific Limited and petitioner Detroit/Wayne County Port Authority joined the City as complainants. Ruling that the new tunnel was neither an “extension” nor an “addition” to a railroad line, the Commission dismissed the complaint. The Port Authority, joined by amici curiae the Windsor Harbour Commission and the Metropolitan Detroit AFL-CIO, petitions for review.
II.
We review the Commission’s interpretation of section 10901, a statute it is charged with enforcing, under the principles set forth in
Chevron USA, Inc. v. Natural Resources Defense Council, Inc.,
Because the Transportation Act nowhere defines the terms “extension” or “addition,” we proceed to step two of
Chevron
to determine whether the Commission’s interpretation of section 10901(a) is permissible. According to the Commission, the new tunnel is not an “extension” or “addition” within the meaning of the statute because, put simply, the tunnel will neither
extend
nor
add to
Canadian National’s existing system. Instead, the Commission viewed the new tunnel as a relocation or improvement of Canadian National’s existing line between Port Huron and Sarnia that did not require section 10901 approval because it did not extend into new territory.
See City of Detroit v. Canadian Nat’l Ry.,
The Commission’s distinction between extensions on the one hand and relocations or improvements on the other is reasonable and consistent with the statute and its legislative history. As the Commission explained, Congress designed the Transportation Act to “prevent railroads from risking their capital on new investments at the expense of maintaining and improving their existing ones, thereby jeopardizing the satisfaction of their common carrier obligations. Investing in existing systems, however, was not the kind of activity that Congress sought to regulate in 1920.”
Id.
at 1216. According to the Commission, “Congress did not give any indication that it intended to erect regulatory hurdles to a carrier investing its capital to improve its own plant.”
Id.; see also Texas & Pac. Ry. v. Gulf, Colo. & S.F. Ry.,
Petitioner argues that we must set aside the Commission’s decision because it was based on a misreading of
Texas & Pacific.
In that ease, the railroad argued that its proposed construction was a “spur” or “industrial track” within the meaning of section 10907(b) and therefore exempt from the certification requirement of section 10901(a).
According to petitioner, the Commission read
Texas & Pacific
to hold that
only
construction that invades new territory requires Commission approval under section 10901(a).
See
Petitioner’s Brief at 7-8. This, of course, was not the holding of
Texas & Pacific,
and had the Commission’s decision been based on such a reading, we would have no choice but to remand. As we have held, “an agency decision cannot be sustained ... where it is based not on its own judgment but on an erroneous view of the law.”
Prill v. NLRB,
While the Commission’s discussion of
Texas & Pacific
is hardly a model of clarity, we
The Port Authority next contends that the Commission’s decision in this ease is inconsistent with its 1952 decision in
Missouri Pacific Railroad,
Conceding that “there is language in previous Commission decisions that supports a finding of jurisdiction [here],”
id.
at 1218, the Commission explained why the approach adopted in this case was the better course. According to the Commission, none of the factors listed in
Missouri Pacific
came from the text of section 10901 itself, and only the language regarding invasions into “new territory” was based on court precedent.
Id.
The Commission also noted that adopting petitioner’s view of
Missouri Pacific
would result in “a great and unwarranted expansion of the agency’s jurisdiction,”
id.
at 1220, by requiring it, contrary to Congressional intent, to assert jurisdiction over any improvement — like double-tracking or electrification — that strengthened a carrier’s competitive position.
See id.
at 1219-20. For these reasons, the Commission expressly “disapproved” any language in
Missouri Pacific
that is inconsistent with the proposition that a relocation or an improvement to an existing line that does not extend into new territory is not an extension or addition under section 10901(a).
Id.
at 1220. Because the Commission has “provide[d] a reasoned analysis indicating that [its] prior policies and standards are being deliberately changed, not casually ignored,”
see Office of Communication of United Church of Christ v. FCC,
Petitioner’s remaining arguments provide no basis for a different conclusion. Although petitioner cites earlier ICC decisions in which the Commission asserted jurisdiction over relocations of existing lines that did not extend into new territory,
see
Petitioner’s Br. at 15-16 (citing,
e.g., Big Sandy & C.R. Co. Constr.,
For the foregoing reasons, we deny the petition for review.
So ordered. ■
