* The plaintiff-appellee, Freightcor Services, Inc., has filed

a petition for rehearing challenging our decision and opinion dated

June 25, 1991. The petition for rehearing is granted; our earlier

opinion is hereby withdrawn, and the following opinion, which

differs from its predecessor in part III.B(2), is entered in its

place. IN THE UNITED STATES COURT OF APPEALS

FOR THE FIFTH CIRCUIT

____________________

No. 91-1507

____________________

FREIGHTCOR SERVICES, INC.

Plaintiff-Appellee,

versus

VITRO PACKAGING, INC.

Defendant-Appellant.

_________________ _________________________________________________

Appeal from the United States District Court for the

Northern District of Texas

__________________________________________________________________

ON PETITION FOR REHEARING *

(Opinion June 26, 1992, 5 Cir., 1992, ___F.2d___)

(August 14, 1992)

Before GOLDBERG, JOLLY, and WIENER, Circuit Judges.

E. Grady JOLLY, Circuit Judge:1 "Undercharges" are the difference between the rate a shipper

is billed for a shipment and the amount of the rate for that

shipment according to the carrier's tariff. S ee Maislin Industries

U.S., Inc. v. Primary Steel

, 497 U.S. 116, ___, 110 S.Ct. 2759,

2764 (1990).

2 The "filed rate doctrine" requires that only a tariff duly

fil ed with the ICC can govern the billing of shipments by common

carriers. The rate, however, must be reasonable. The filed rate

doctrine seeks to avoid secret rates ne gotiated between shippers

and carri ers. M aislin Industries, U.S., Inc. v. Primary Steel,

Inc. , 497 U.S. 116, ____, 110 S.Ct. 2759, 2766 (1990).

-2- In this suit a bankrupt interstate carrier, Freightcor, Inc.,

seeks undercharges 1 from a shipper, Vitro Packaging , Inc. The

district court rejected Vitro's defense that, under the "filed rate

doctrine," 2 Freightcor' s tariff was void because it referred to a

mileage guide in which Fr eightcor did not formally participate.

The court therefore granted summary judgment for Freightcor. For

the reasons below, we today hold that a mileage guide is a tariff

and that a tariff that refers to another tariff without official

participation in that tariff is void as a matter of law.

Freightcor therefore cannot collect undercharges against Vitro

under the filed rate doctrine.

I

Freightcor, now in bankruptcy, is a common carrier operating

in interstate commerce and subject to regulation by the ICC. From

1985 until 1987, Freightcor hauled glass bottles and containers for

Vitro. Vitro paid rates between $.98 and $1.13 per mile. All of

these charges were based upon rates that were not drawn from-3-

tar iffs filed with the ICC, but instead were negotiated between

Freightcor and Vitro.

During these years, Freightcor had two filed tariffs that are

now material. Tariff ICC FSSI 282 applied to "Building Materials

or Supplies." Tariff ICC FTHS 275 applied to "Freight of all

Kinds, except Class A and B Explosives, Household Goods and

Materials in Bulk." The rate for ICC FTHS 275 was $3.00 per mile,

and the rate in FSSI 282 was considerably less.

Both FTHS 275 and FSSI 282 comput ed mileage for specific

shipments according to the Household Goods Carriage Bureau ("HGCB")

MF-ICC 100-A Mileage Guide. The parties agree that Freightcor did

n ot file a power of attorney or concurrence with the HGCB to

"participate" in the mileage guide.

Freightcor declared bankruptcy and, as debtor-in-possession,

sue d Vitro in U.S. district court for undercharges, or the

difference between the rate actually charged and the rate posted in

a carrier's applicable tariff on file with the ICC. Vitro answered

alleging, among other defenses, that the proper forum for this

dispute is the ICC, that the tariffs Freightcor sought to apply

were void because Freightcor had not participated in the mileage

guide these tariffs referred to, that an attempt to collect filed

rates after negotiating a lower rate was an unreasonable practice,

and that the rates sought were unreasonable. Freightcor moved for

summary judgment, arguing that, under the filed rate doctrine, the

sole question for the court was whether Vitro had paid the amount-4-

of mon ey required in the duly filed tariffs that governed

Freightcor's shipments of Vitro's cargo. The court initially

denied the motion, no ting that a factual dispute persisted

concerning the applicability of FSSI 282: whether glass bottles and

container s, which Freightcor had hauled for Vitro, were included

within the term "Building materials or supplies" as found in FSSI

282.

On March 15, 1991, however, the court granted reconsideration.

The court rejected Vitro's defenses and held that FTHS 275 had

properly referred to mileage guide HGCB MF-ICC 100-A. The court

further held that, although there was a dispute with respect to the

applicability of FSSI 282, there was no factual dispute as to the

applicability of FTHS 275, which covered "freight of all kinds."

The court therefore held that FTHS 275 was applicable. It noted,

however, that because Freightcor had also contended, viz.

,

"conceded," that FSSI 282 was also applicable, the court would

apply the lower rate under FSSI 282 and assess Freightcor's damages

on that basis. In so doing, the court observed it was undisputed

that when two tariffs are applicable, the proper rate to apply is

the lower rate. Because Freightcor had contended that both FSSI

282 and F THS 275 were applicable, it could not complain that the

district court appl ied the lower rate to assess undercharge

damages. Judgment was entered for $19,199 in principal and $5,449

in prejudgment interest. Vitro filed a motion for "new trial,"

which was denied. Vitro then filed this appeal.-5- II

We review de novo the summary judgment, applying the same

standards of law as those available to the district court. Trial

v. Atchison, Topeka and Santa Fe R. Co.

, 896 F.2d 120, 122 (5th

Cir. 1990 ). Therefore, to sustain the summary judgment rendered

below, we must find that there is "no genuine issue as to any

material fact and that the moving party is entitled to judgment as

a matter of law." Fed.R.Civ.P. 56(c).

III

The heart of Vitro's appeal is its argument that the district

court erred in applying the filed rate doctrine based on

Freightcor's tariff FTHS 275. Vitro argues that FTHS 275 was void

under ICC regulations because, although FTHS 275 refers to HGCB MFICC 100-A for the mileage of specific shipments, Freightcor did not

give to the HGCB a power of attorney in order to "participate" in

the t ariff, as required by the Commission's regulations.

Therefore, contends Vitro, FTHS 275 is unenforceable, and

Freightcor may not collect undercharges based upon its rates. In

response, Freightcor argues that the regulations do not require it

to participate in the mileage guide in order to refer to it, and if

they do, they still cannot be used to retrospectively void a tariff

that had been otherwise duly filed and effective.

The district court found that Freightcor

permissibly referred to HGCB MF-ICC 100-A in tariff ICC

FTHS 275 for the purpose of computing the distance rate.

See 49 C.F.R. § 1312.30(c)(1). The mileage guide in

question complied with 49 C.F.R. § 1312.30(c)(4) because,-6-

without dispute, it was on file with the ICC at the time

the tariff was publishe d and filed. The court rejects

Vitro's arguments to the contrary.

Thus the district court did not expressly address the effect of

Freightcor's failure to file a power of attorney with respect to

the HGCB mileage guide. We read the district court's opinion as

holding implicitly either (1) that the mileage guide is not a

tariff, or (2) that Freightcor was not required to participate in

the mileage guide, or (3) that Freightcor's mere reference to the

mileage guide amounted to participation.

A

The ICC regulations make clear that whether a carrier

"part icipates" in the tariff of another carrier or an agent is a

matter of certain formalities. ICC regulation 49 C.F.R. §

1312.4(d) mandates that

a carrier may not participate in a tariff issued in the

name of another carrier or an agent unless a power of

attorney or con currence is attached. Absent effective

concurrences or powers of attorney, tariffs are void as

a matter of law.

The regulations do not require that Freightcor file its power of

attorney or concurrence with the ICC; instead, it files such

documents with the HGCB, which i n turn publishes the carriers

participating in MF-ICC 100-A. Freightcor did not file a power of

attorney or a concurrence with the HGCB, and it therefore did not

participate in the HGCB MF-ICC 100-A. The initial question for

this court is, therefore, whether under the ICC's regulations-7-

Freightcor was obligated to participate in the HGCB mileage guide

in order to refer to it in Freightcor's own tariffs.

First, Freightcor argues that MF-ICC 100-A is only a distance

guide and not a "tariff issued in the name of another carrier or an

agent." Freightcor asserts that formal participation is only

required if a carrier refers to another agent's tariffs in order to

designate the rate per mile governing shipments.

We begin our inquiry, therefore, by determining whether HGCB

MF-ICC 100-A is a tariff issued in the name of an agent under

section 1312.4(d). "Tariff" and "agent" are defined in 49 C.F.R.

§ 1312.1(b).

(2) "Agent" means a person, association or corporation authorized to publish and file rates

and provisions for a carrier's acc ount in tariffs

published in the agent's name.

..... (35) "Tariff" means a publication containing rates,

classification ratings, rules, reg ulations, and

other provisions as amended, filed in the carrier's

or an agent's name.

Indisputably, the HGCB is an agent authorized to publish and

file rates, and a mileage guide is a publication, containing

provisions meant to be the basis for shipping bills, filed in

an agent's name. Furthermore, HGCB MF-ICC 100-A was filed

with the Commission in accordance with section 1312.30(a), as

is required in order for Freightcor to refer to the guide. 49

C.F.R. § 1312.30(c)(4). The number "100-A" is assigned by the

Commission to designate it as a tariff in accordance with3 ICC regulation 49 C.F.R. § 1312.27(e) provides indirect

authority for such a requirement. Under section 1312.27(e), a

carrier whose tariff refers to a second tariff that refers to a

third tariff must either participate in the third tariff or limit

its participation in the second tariff to terms that are not

controlled by the third tariff. This regulation does not, however,

expressly establish an obligation to participate in the s econd

tariff.

-8- section 1312.8(3). Freightcor's own tariffs describe HGCB MFICC 100-A as a tariff.

We conclude, therefore, that HGCB MF-ICC 10 0-A was

clearly a "tariff" as the word is used in section 1312.4(d).

The conclusion that MF-ICC 100-A is a tariff does not,

however, end our inquiry. We must determine whether a mileage

guide, even though a tariff, is an exception to the general

rule that a carrier who utilizes the tariff of another carrier

or agent can only participate in that tariff by complying with

the formalities of filing a power of attorney or concurrence

with the issuing agent pursuant to section 1312.4(d).

No current ICC regulation specifically addresses this

point. 3

The ICC, however, has recently addressed the question and

found that, under its regulations, refere nce to a mileage

guide requires participatio n in that tariff. P etition of

Jasper Wyman & Son, et al. re: Overland Express, Inc.

, ICC

Case No. 40150, 8 I.C.C.2d 246 (1992). We defer to an

agency's interpretation of its governing statute and

regulati ons, and affirm that interpretation if it has a4 49 C.F.R. § 1312.30(c)(4) provides

Except as provided in § 1312.13(e)(2), only distance guides on file with the Commission may

be referred to. More than one may be referred to provided the rate tariff clearly specifies

the circumstances under which each guide will apply. An agent's tariff may refer to another

agent's distance guide.

Section 1312.13(e)(2) provides that rules published by the federal government need not be separately filed with

the Commission.

5 Prior to 1984, section 1310.16 provided

Only distance guides officially on file with the

Commission may be referred to. More than one may be

referred to provided the rate tariff clearly specifies

the circumstances under which each guide will apply. A ll

carriers parties to d istance rates referring to one or

more distance guides must also be parties to each guide

referred to. An agent may refer to a distance guide

published in the name of another agent for the account of

participating carriers also parties to the guides.

When this section became effective as revised section 1312.20, the

underlined language was omitted.

-9- reasonable basis in law. W estern Coal Traffic League v. U.S.

,

719 F.2d 772, 777 (5th Cir . 1983) c ert. denied 466 U.S. 953

(1984).

In Jasper Wyman

, the Commission addressed the fundamental

argument m ade by Freightcor: that section 1312.30(c)(4) 4

requires only that tariffs be on file in order to refer to

them; consequently, a carrier, who only refers to a mi leage

table, is not required to participate in that tariff. In

supporting that contention, Freightcor points out that in

adopting 1984 amendments to Commission's regulations, the ICC

eliminated the explicit requirement that carriers must

participate in a mileage guide. 5

The ICC, however, found that the excising of the language

only removed a redund ant requirement to participate in the-10-

tariffs of other carriers, Jasper Wyman

, 8 I .C.C.2d at 251,

which was set out at 49 C. F.R. § 1312.25. Furthermore, the

ICC found that the elimination of the redundant language

allowed carriers, who, as private entities, could not be

"parties" to government distance guides, to nevertheless use

those guides. Therefore, the ICC held that the requirement of

section 1312.4(d) to participate formally in the tariffs of

another agent continued to apply to mileage guides. J asper

Wyman , 8 I.C.C.2d at 252.

The ICC's ruling

-- that mileage guides are tariffs, that

carriers must participate in mileage guid es as in any other

t ariff, and that the 1984 amendments did not remove this

requirement to participate in mileage guides -- has a

reasonable basis in law. As to the first prong of the ruling,

we have independently determined above that mileage guides are

clearly tariffs. As to the next prong of the ruling, the

Interstate Commerce Act does not distinguish between one form

of tariff and another in requirin g Commission regulation of

joint tariffs. 49 U.S.C. § 10762(a)(1). Moreover, the text

of section 1312.3 0 (c)(4) establishes no exception to the

general obligation placed upon a carrier whose tariff is

governed by the terms of the tariff of another carrier or

agent: it must formally participate in the tariff of the other

carrier or an agent. As to the last prong of the holding, the

Commission's view that th e 1984 amendments did no more than6 Freightcor argues that a mere irregularity in the tariff is

no basis for the ICC to void the tariff, because the tariff is in

substantial compliance. Freightcor cites G enstar Chemical Ltd. v.

ICC

, 665 F.2d 1304 (D.C.Cir. 1981) cert. denied Nitrochem, Inc. v.

ICC

, 456 U.S. 905 (1982); Davis v. Portland Seed Co.

, 264 U.S. 403

(1924); and Berwind-White Coal Mining Co. v. Chicago & E. R. Co.

, 235 U.S. 371 (1914), in support of this position.

In Jasper Wyman

, the ICC distinguished th ese cases as being

suits on effective tariffs that did not conform to a regulation, as

opposed to tariffs that are void or otherwise ineffective. (In

Berwind-White , the tariff's failing was in not conforming to page

format requirements; in Davis

, the rate was too high, and in

Genstar

, there was an insufficient period of notice prior to the

effective date.) Certainly, none of the cases were based on a

statutory or regulatory provision stating that the "tariff is void

as a matter of law."

We need not reach this question of substantial compliance, as

there is no question but that Freightcor did not comply at all,

much less substantially, with section 1312. 4(d), which defines

nonconforming tariffs as void. We therefore will concern ourselves

with the operation and validity of section 1312.4(d) and do so according to the standards set out in ICC v. American Trucking

Assos., Inc.

, 467 U.S. 35 4 (1984), which is more recent than the

cases indicated by Freightcor.

-11- delete a redundant regulation is a plausible explanation for

what occurred.

We hold, therefore, that section 1312.4(d) requires that

a carrier who refers to the mileage guide of another carrier

or agent to participate in that mileage guide. Thus, because

FTHS 275 referred to the mileage rates of HGCB MF-ICC 100-A,

Freightcor was required under section 1312.4(d) to participate

in HGCB MF-ICC 100-A. Freightcor filed neither a power of

attorney nor a concurrence with HGCB to participate in MF-ICC

100-A. Accordingly -- under regulation 1312.4(d) -- FTHS 275

was "void" as a matter of law. 67 T he Supreme Court, in A berdeen & Rockfish

, 467 U.S. 1237

(1984), vacated and remanded Aberdeen & Rockfish R. Co. v. U.S.

, 682 F.2d 1092 (5th Cir. 1982), for reconsideration in the light of

-12- B

Freightcor argues, however, that, even if section

1312.4(d) applies to mileage guides, its tariffs are not void

because the ICC is without authority to issue regulation

1312.4(d) to the extent that it retrospectively voids a tariff

that has been app roved by, and is on file with, the ICC.

Here, for example, Freightcor contends that it duly filed its

tariff FTHS 275 with the ICC, and the ICC accepted that

tariff; accordingly, it is an effective rate. The ICC, it

argues, has no authority to promulgate a regulation that

retrospectively voids this effective tariff.

(1)

Freightcor relies on the Supreme Court's opinion ICC v.

American Trucking Assos., Inc. , 467 U.S. 354 (1984), and its

simultaneous remand of Aberdeen & Rockfish R. Co. v. U.S.

, 467

U.S. 1237 (1984), in contending that its tariffs are not void

pursuant to the terms of section 1312.4(d). In doing so,

Freightcor acknowledges that this circuit has upheld the

authority of the ICC to issue regulations that void effective

tariffs. A berdeen & Rockfish R. Co. v. U.S.

, 682 F.2d 1 092

(5th Cir. 1982). It asserts, however, that by vacating

Aberdeen & Rockfish

, the Supreme Court precluded our reaching

that result in this case. We disagree. 7American Trucking

. Freightcor argues that this remand overruled

our opinion rather than merely vacating it.

In Aberd een & Rockfish , we considered an ICC regulation

providing that tariffs that did not contain certain symbols

denoting rate changes would be unenforceable, even if the tariffs

were duly filed with the ICC. We held that the ICC did not abuse

its discretion by adopting the regulation, and it was consequently

enforceable. T he Supreme Court granted certiorari in American

Trucking and Aberdeen & Rockfish because the Eleventh Circuit

opinion conflicted with our opinion in Ab erdeen & Rockfish

. American Trucking

, 467 U.S. at 358. Ultimately, the Supreme Court

reversed the Eleventh Circuit's holding tha t the ICC may not

enforce rate bu reau agreements by rejecting effective tariffs.

Compare American Trucking

, 467 U.S. at 370 to Ameri can Trucking

, 688 F.2d at 1354; on remand American Trucking Assos. v. United

States

, 744 F.2d 754 (11th Cir. 1984), cert. denied 467 U.S. 1240.

The Supreme Court merely vacated the judgment in A berdeen &

Rockfish and remanded it to this court "for further consideration

in light of" American Trucking

. A berdeen & Rockfish

, 467 U.S. 1237

(1984). This court then remanded the case to the ICC where it

became moot when the ICC repealed the regulations that were the

subject of the suit. 49 Fed.Reg. 38641 (1985). Although it is

certainly true that our opinion was vacated in Aberdeen & Rockfish

, it is incorrect to assume that the Supreme Court's remand

constituted a bar to our upholding the power of the ICC to void an

effective tariff.

-13-

In American Trucking

, the Supreme Court rev iewed a

holding of the Eleventh Circuit that although the ICC clearly

had authority to reject proposed tariffs that did not conform

to rate bureau requirements, the ICC lacked the express

statutory authority to reject r etrospectively a tariff that

had been on f ile with the ICC and applied by the carrier in

the conduct of its business; or, in short, the appellate court

held that the ICC lac ked the authority to reject,

retroactively, effective tariffs. A merican Trucking Assos. v.

U.S. , 688 F.2d 1337 (11th Cir. 1982).-14- The Supreme Court agreed that the Motor Carrier Act, 49

U.S.C. § 10762(e), does not expressly authorize the Commission

to reject effective tariffs

-- a holding that Freightcor

suggests controls our case today. A merican Trucking

, 467 U.S.

at 364. This holding, however, did not resolve the issue

presented. The court proceeded further to hold that the

Commission has discretion to develop extrastatutory remedies,

including the remedy of voiding effective tariffs. American

Trucking , 467 U.S. at 370. In exercising this discretionary

power, however, the Court prescribed a standard for the

Commission to follow:

To lie within the Commission's discretionary power,

the proposed remedy must satisfy two criteria:

first, the power must further a specific statutory

mandate of the Commission, and second, the exercise

of power must be directly and closely tied to that

mandate.

American Trucking

, 467 U.S. at 367. The court then applied

t hat standard to the Commission's remedy of voiding tariffs

that had become effective but later were found to be in

violation of agreements among members of the particular rate

bureaus. The Commission argued that, after the tariff had

become effective, the only approp riate remedy to address a

later discovered non-conforming tariff, was voiding the

tariff. The court accepted the argument, saying

[W]e agree with the Commission that its new remedy

is a ju stifiable adjunct to its express statutory

mandate. The nullification of effective tariffs

submitted in violation of rate-bureau agreements is

directly aimed at ensuring that motor carriers8 We believe that the A merican Trucking test appropriately

governs our review of section 1312.4(d), despite the procedural and

substantive distinctions between 1312.4(d) (governing participation

by several carriers or agents in a common tariff) and Motor Carrier

Rate Bureaus -- Implementation of P.L. 96-296 , 364 I.C.C. 464

(1980)(governing the conformity of carriers' tariffs to applicable

agreement s of rate bureaus to which the carriers belonged), the

ruling of the Commission considered by the American Trucking court.

-15- comply with the guidelines established by

Congress...

467 U.S. at 370. Accordingly, the Supreme Court reversed the

Eleventh Circuit's holding that the ICC lacked the power to

enforce rate bureau agreements by voiding effective tariffs.

American Trucking , 467 U.S. at 370.

(2)

Our question is then, in the light of American Trucking

,

whether section 1312.4(d)

-- in retrospectively voiding a noncomplying tariff -- is within the ICC's statutory authority.

Applying the standards set down by the Supreme Court, we will

uphold the power claimed by the ICC in its regulation if (1)

the pow er furthers a specific statutory mandate of the

Commission, and (2) the exercise of power is directly and

closely tied to that mandate. A merican Trucking

, 467 U.S. at

367. 8

Before we apply A merican Trucking ' s two-step test, we

briefly restate the pow er claimed by the Commission in our

case to day: the authority to declare "void as a matter of

law" a carrier's tariffs that refer to other tariffs without

participation in the second tariff. This power may also be9 Subchapter II of section 105 of the Interstate Commerce Act

provides, in part,

...[T]he Interstate Commerce Commission has jurisdiction

over transpor tation by motor carrier ... to the extent

that passeng ers, property, or both are transported by

motor carrier (1) between a place in -- (A) a State and

a place in another State; ..... (2) ... or on a public

highway.

49 U.S.C. § 10521.

-16- characterized as a power to determine whether a tariff is

effective. J asper Wyman

, 8 I.C.C.2d at 258. In other words,

section 1312.4(d) does not authorize the ICC to act

affirmatively to void a tariff. This regulation defines when

a tariff became effective or becomes void through the action

or inaction of a carrier.

The first inquiry that American Trucking requires us to

make is whether this power claimed by the Commission furthers

a statutory mandate. The relevant statutory mandate is in the

Interstate Commerce Act, under which the Interstate Commerce

Commission has juri sdiction to regulate the tariffs of

interstate motor common carriers. 9 Congress first set forth

the transpor tation policy it intends to govern interstate

carriers in the Interstate Commerce Act, 24 Stat. 379 (1887),

which has been refined in its amendments and successor acts,

particular ly, the Interstate Commerce Act of 1978, 92 Stat.

1337, and the Motor Carrier Act of 1980, 94 Stat. 2013. This

policy is currently codified at 49 U.S.C. § 10101. As goals10 49 U.S.C. § 10101(a)(1) provides, in part,

It is the policy of the United States Government .....

(B) to promote safe, adequate, economical, and efficient

transportation;

(C) to encourage sound economic conditions in

transportation, including sound economic conditions among

carriers;

(D) to encourage the establishment and mai ntenance of

reasonable rates for transportation, without unreasonable

discrimination or unfair or destructive competitive

practices....

Furthermore, the statutory policy is directed spe c ifically to

regulate transportation by motor carrier to promote competition and

efficiency so that motor carriers' services will, in sum,

(A) meet the needs of shippers, receivers, passengers,

and consumers; (B) allow a variety of quality and price

options to meet changing market demands and the diverse

requirements of the shipping and travelling public...

49 U.S.C. § 10101(a)(2).

-17- of this policy, federal regulation of transp ortation should

promote fairness and efficiency. 10

The courts have long recogniz ed that a central purpose

underlying the transportation policy of the Interstate

Commerce Act is a Congressional mandate that the ICC regulate

the relationship between carriers and agents to prevent

secrecy in the negotiation of tariffs, which promotes

discrimination, favoritism, market inefficiency, and

artificially high rates. S ee Maislin

, 110 S.Ct. at 2768,

quoting Armour Packing Co. v. United States , 209 U.S. 56, 81

(1908). Simply put, public disclosure of the parties to each

tariff promotes fairness and helps to level the playing field

on which the players must know whom they are playing with and

against. S ee, e.g., Kansas City Southern R. Co. v. C.H.1 1 As well as this general mandate of the ICC to set

requirements for joint tariffs, the ICC is specifically required to

monitor the use of joint classifications and rates, as well as the

division of revenues collected pursuant to charges under joint

rates among shippers. 49 U.S.C. § 10705(b)(1) provides:

The Interstate Commerce Commission may, and shall when it

considers it desirable in the public interest, prescribe

... joint classifications, joint rates, (including

-18- Albers Comm. Co. , 223 U.S. 573, 597 (1912)(secret agreements

between shipper and carrier forbidden).

In support of this policy, th e Interstate Commerce Act

specifically requires the ICC to regulate the relations among

motor common carriers that have entered into joint tariffs.

49 U.S.C. § 10762(a)(1) provides, in part,

.... A motor common carrier shall publish and file

with the Commission tariffs containing the rates

for transportation it may provide under this

subsection. The Commission may prescribe the other

information that motor common carriers shall

include in their tariffs. .....

Thus, each motor carrier is required by statute to publish and

file with the Commission all tar iffs containing rates. The

Commission, moreover, is under an express mandate

-- distinct

from the mandates of the statute imposed on carriers -- both

to determine the nature of the inform ation the carrier must

file in each tariff and to require that this information be

provided. Within this mandate to require certain information,

and in the light of the policy against allowing secret

agreements, we believe it is necessary, practically, for the

Commission to require the identification of each participant

in every tariff. 11maximum and minimum rates or both), the division of joint

rates

... for a motor common carr ier of property

providing transportation subject to the jurisdiction of

the Commission under subchapter II of chapter 105 of this

title [ i.e. motor carriers] with another such carrier...

Furthermore, 49 U.S.C. § 10701(a) provides:

A rate (other than a rail rate), classification, rule, or practice related to transportation or service provided by

a carrier subject to the jurisdiction of the Interstate

Commerce Commission under chapter 105 [ e.g. motor common

carriers] must be reasonable. Divisions of joint rates

by those carriers (including rail carriers) must be made

without unreasonable discrimination against a participating carrier and must be reasonable

. (Emphasis added.) Certainly, the Commission cannot monitor such

joint rates and joint classifications, nor can it guard against

unreasonable discrimination in the use of joint tariffs unless the

participants of each tariff are identified.

-19- In sum, the congressional mandate to the ICC is that the

Commission must maintain a fair and efficient transportation

m arket, which, at the very least, does not permit sec ret

negotiations and arrangements between carriers and shippers.

Mindful of this policy, the Commission is specifically under

a statutory mandate to determine what information mus t be

provided in every joint tariff and provide mechanisms to

ensure that this informat ion is provided and is accurate.

Pursuant to this obligation, we believe that there is a strong

presumption that the Commission must require the disclosure of

the identity of the carriers participating in every tariff.

Our second step in applying the American Trucking test is

to de termine whether the ICC's regulation -- which requires

that a tariff is void if the participating carrier fails to1 2 49 C.F.R. § 1312.4(d). The Commission has promulgated other

rules that are in furtherance of this same mandate, which are not

implicated by Freightcor's argument: Each tariff must list all

other tariffs that govern its terms. 49 C.F.R. § 1312.13(e).

Conversely, every tariff in which carriers participate must include

a section listing all participati ng carriers. 49 C.F.R. §

1312.13(c). The Commission has also detailed the form and scope of

powers of attorney used by a carrier to participate in another

carrier's or an agent's tariff. 49 C.F.R. § 1312.10(a).

-20- follow the prescribed procedure 12

-- is directly and closely

tied to the Commission's mandate under the Interstate Commerce

Act. We find that this power is clearly tied to the statute

as a necessary means of enforcing the Interstate Commerce Act.

As we have noted, the Commission is required by statute to

determine the standards for filing tariffs. The Commission is

further required to determine the information that must be

provided by every carrier participating with other carriers in

a tariff. Finally, we have noted that the Commission is

expected to further the transportation policy of the federal

government, which, at the very least, bars secret arrangements

among carri ers and between carriers and shippers. The

Commission was well within its mandate in dictating that every

tariff must identify the carriers that are party to it.

In fulfilling the statutory mandate, the Commission

designated participation via concurrence or powers of

attorney. The ICC regulations prescribe a simple method for

compliance with the statute and declare that tariffs that do

not comply with important statutory mandates are void. Stated

in another way, the regulation defines the essential elements1 3 We note that, of the vast numbe r of technical requirements

the Commission h as placed on tariffs, only the requirement of

formal participation is enforced with the voiding mec hanism. We

find no other regulation in which the ICC currently requires a

carrier to comply with the regulation or find that its nonconforming tariff is "void as a matter of law."

-21- of an effective tarif f that refers to other tariffs that

govern its terms.

Although the use of voiding as a method of compliance is

potentially a harsh m easure, we are satisfied that the

Commission has not exceeded its discretion by determining that

tariffs are void if they fail to comply with formalities that

serve important statutory purpose s. 1 3 A stricter corrective

m easure -- voiding tariffs a nd giving shippers an explicit

right to overcharges

-- was upheld by the Supreme Court in

American Trucking to remedy non-conforming tariffs. A merican

Trucking

, 467 U.S. 370. The public policy that the Commission

seeks to enforce through the exercise of this mandate is one

that has long been integral to the regulation of interstate

commerce: the prevention of secrecy in the dealings among

carriers and between carriers and favored shippers. Thus, we

conclude t hat section 1312.4(d) was within the Commission's

statutory authority.

IV

We have thus determined that section 1312.4(d) voids as

a matter of law any tariff t hat has not complied with the

regulation's provisions. We have determined that the-22-

Commission has the authority to i ssue such a provision.

Consequently, both of Freightcor's tari ffs -- FSSI 282 and

FTHS 275

-- a re void as a matter of law because neither

complied with section 1312.4(d). Therefore, Freightcor can

assert neither tariff as a basis for an act ion for

under charges under the filed rate doctrine. Thus, the

district court erred in granting summary judgment and entering

judgment in favor of Freightcor. Accordingly, we reverse the

district court, vacate the judgment , and remand to the

district court with directions to enter a judgment for Vitro.

VACATED, REVERSED, and REMANDED.