This appeal turns on the authority of the Secretary of the Department of Transportation (Secretary) to delegate certain responsibilities under the Great Lakes Pilotage Act of 1960, 46 U.S.C.A. §§ 9301
et seq.
(West Supp.1997) (GLPA), to the Saint Lawrence Seaway Development Corporation (Corporation). The appellants, two Great Lakes ship pilots and two Great Lakes shipping pilots’ associations, challenge the Secretary’s delegation of GLPA responsibilities to the Corporation on the grounds that the delegation (1) exceeds the Secretary’s authority under 46 U.S.C.A. § 2104(a) (West Supp.1997), (2) lodges with the Corporation duties it has no authority to discharge and (3) violates the Administrative Procedure Act, 5 U.S.C- §§ 551
et seq.
(APA). The appellee, the Secretary, responds that delegation to the Corporation is proper: (1) an alternative source of delegation power, 49 U.S.C. § 322(b), supports the delegation; (2) the Corporation has authority to accept and discharge the “essentially economic” responsibilities it has been delegated because they relate to its broader mission of regulating commerce on the Saint Lawrence Seaway; and (3) the delegation does not contravene applicable APA requirements. The district court agreed with the Secretary in all respects and granted his motion for summary judgment.
Halverson v. Peña,
No. 96-CV-0028,
We now reverse. Pursuant to the first step of the familiar
Chevron
analysis, we conclude that the plain meaning of section 2104(a) limits delegation of GLPA functions to the United States Coast Guard and that section 322(b) cannot fairly be construed to expand the limitation.
See Chevron USA, Inc. v. Natural Resources Defense Council, Inc.,
I. BACKGROUND
The Corporation was established in 1954 by an Act of the Congress, Pub.L. No. 83-558, 68 Stat. 93 (codified as amended at 33 U.S.C. §§ 981 et seq.). Its congressional charter set forth the Corporation’s specific (and limited) functions in some detail. See 33 U.S.C. § 983; 1 S.Rep. No. 83-441, at 2, 6-14 (1953) (describing limited purposes for which Corporation was created); H.R.Rep. No. 83-1215 (1954) (similar), reprinted in 1954 U.S.C.C.A.N. 2197, 2224-42. The narrowness of the Corporation’s mission was further reflected in the statutory enumeration of the Corporation’s powers. See 33 U.S.C. § 984(a). 2 When first established, the Corporation was “subject to the direction and supervision of the President, or the head of such agency as he may designate.” 33 U.S.C. § 981 (1954). Through fiscal year 1966, the Department of Commerce was the agency designated to supervise the Corporation. In fiscal year 1967, however, the Congress amended section 981, replacing the “President, or the head of such agency as he may designate” language with the “Secretary of Transportation.” 33 U.S.C. § 981 (1966).
Construction of the Saint Lawrence Seaway was completed in 1959, opening the Great Lakes to international shipping. Not surprisingly, opening of the Seaway brought with it a marked increase in the volume of both domestic and international marine traffic navigating the Great Lakes, their tributaries and their outlets. As a result, one year later the Congress enacted GLPA. See Pub.L. No. 86-555, 74 Stat. 259 (1960) (codified as amended at 46 U.S.C.A. §§ 9301 et seq. (West Supp.1997)). Among other things, GLPA required commercial ships to employ a registered United States or Canadian pilot to steer them (or advise them how to steer) safely and efficiently through certain portions of the Great Lakes, their tributaries and outlets, and the approaches to the Sault Sainte Marie Locks. See 46 U.S.C.A. § 9302 & Note (West Supp.1997).
As noted, in 1967 the Department of Transportation took over supervision of the Corporation. That same fiscal year, administrative responsibility for the United States Coast Guard was transferred from the Department of the Treasury to the Transportation Department. 3 See Pub.L. No. 89-670, § 6(b)(1), 80 Stat. 931 (1966) (codified as amended at 14 U.S.C. § 1). The Transportation Secretary subsequently delegated his GLPA responsibilities to the Commandant of *183 the Coast Guard, with whom they remained until December 1995. See Delegations to Commandant of the Coast Guard, 49 C.F.R. § 1.46(a) (1994).
In December 1995, the Secretary published a final rule that rescinded the standing delegation of GLPA functions to the Coast Guard and redelegated eleven “essentially economic” functions to the Corporation. See Organization and Delegation of Powers and Duties; Transfer of Great Lakes Pilotage Authority From the Coast Guard to the Saint Lawrence Seaway Development Corporation, 60 Fed.Reg. 63,444 (1995) (codified at 49 C.F.R. § 1.52(d)-(e) (1997)). 4 Shortly thereafter, the appellants filed suit and moved for a preliminary injunction or summary judgment. The Secretary cross-moved for summary judgment and a hearing on the motions was held on March 8, 1996. At its conclusion, the district court denied the appellants’ motion for a preliminary injunction and reserved decision on the parties’ summary judgment motions.
By Memorandum Opinion and Order dated April 23, 1996 the district court granted the Secretary’s cross-motion for summary judgment, finding that both the first and second steps of the analysis set forth in
Chevron
compelled a holding in his favor.
Halverson,
II. DISCUSSION
We review the district court’s award of summary judgment
de novo. See Diamond v. Atwood,
The [Transportation] Secretary may delegate, and authorize successive delegations of, duties and powers of the. Secretary to an officer or employee of the Department.
49 U.S.C. § 322(b).' As the Secretary reads this provision, it gives him largely unfettered discretion to delegate duties and powers to agency officers and employees.
5
Indeed, he appears to have succeeded in convincing the district judge that only an
express
statutory prohibition could foreclose exercise of his section 322(b) authority.-
See Halverson,
Section 2104(a), in turn, provides that:
The Secretary may delegate the duties and powers conferred by this subtitle [Subtitle II entitled “Vessels and Seamen”] to any officer, employee, or member of the Coast Guard, and may provide for the subdelegation of those duties and powers.
46 U.S.C.A. § 2104(a) (West Supp.1997). 6 The appellants read section 2104(a) to authorize the Secretary to exercise GLPA duties and powers himself or to delegate them to a Coast Guard official. They believe that section 2104(a) unambiguously proscribes delegation of GLPA responsibilities outside the Coast Guard and thwarts the Secretary’s attempt to effect such a delegation pursuant to his general section 322(b) authority. The Secretary, unsurprisingly, construes section 2104(a) quite differently. He reasons that because section 2104(a) does not expressly proscribe a section 322(b) delegation, he may delegate Subtitle II powers and duties pursuant to the latter provision. The Secretary thus construes section 2104(a) merely to clarify that “any officer, employee, or member of the Coast Guard” is an “officer or employee of the Department” to whom he may otherwise delegate Subtitle II responsibilities pursuant to section 322(b).
The Chevron framework governs our interpretation of sections 322(b) and 2104(a):
Under this analysis, the court must first exhaust the traditional tools of statutory construction to determine whether Congress has spoken to the precise question at issue. ... If the court can determine congressional intent, then that interpretation must be given effect. ... If, on the other hand, the statute is silent or ambiguous with respect to the specific issue, then the court will defer to a permissible agency construction of the statute.
Natural Resources Defense Council, Inc. v. Browner,
We believe the lower court erred by failing to “exhaust the traditional tools of statutory construction,”
NRDC,
A. The Language of Section 2104(a)
The Secretary’s interpretation of section 2104(a) runs afoul of the cardinal canon of statutory construction that “[w]e must read the statutes to give effect to each if we can do so while preserving their sense and purpose.”
Watt v. Alaska,
Perhaps recognizing the weakness of such an interpretation of section 2104(a), the Secretary attempts to ascribe a wartime significance to section 2104(a). His attempt fails. The Secretary asserts that- section 2104(a) is needed simply to preserve his ability to delegate Subtitle II powers and duties to Coast Guard officials in time of war, when the Coast Guard reverts to the administrative control of the Department of the Navy. This assertion is patently erroneous. Another provision of Subtitle II explicitly directs that when the Coast Guard operates-as part of the Navy, the “Secretary” referred to in various sections of Title 46 (including section 2104(a)) is not the Transportation Secretary but the Secretary of the Navy. 7 See 46 U.S.C.A. § 2101(34) (West Supp.1997) (“‘Secretary', except in Part H, means the head of the department in which the Coast Guard is operating.”); accord S.Rep. No. 98-56, at 8 (1983) (“This bill universally vests all authority in.the ‘Secretary of the Department in which the Coast Guard is operating,’ and provides authority to the Secretary to delegate and allow for subdelegation.”). Accordingly, when the Coast Guard operates as part of the Navy, only the Secretary of the Navy can delegate Subtitle II responsibilities pursuant to section 2104(a). The provision cannot be interpreted, then, merely to preserve the Transportation Secretary’s Subtitle II delegation authority in time of war.
The Secretary’s view of section 2104(a) is also irreconcilable with the statutory construction principle,
expressio unius est ex-clusio alterius,
that is, the “mention of one thing implies the exclusion of another thing.”
Ethyl,
The Secretary next argues that because the Congress did not
expressly
prohibit delegation of Subtitle II powers and duties to a non-Coast Guard official in section 2104(a), yet elsewhere
did
so proscribe, the former omission indicates a legislative intent consistent with the Secretary’s reading of section 2104(a).
9
This rule of statutory interpretation, however, has force only if the two provisions in question are included within the same legislative enactment.
See Russello v. United States,
Even if the proscriptions were in the same enactment as section 2104(a), it would not support the inference that the Congress intended section 322(b) to override the limiting language of section 2104(a). This is so because section 2104(a) was enacted as part of the reeodifieation of Title 46 and, as such, is a manifestly inappropriate legislative vehicle to which to apply the rule because any inconsistency arising from the earlier enactment (like section 322(b)) is, absent a contemporaneous revision, merely carried forward by the reco-dification.
Cf. Fourco Glass Co. v. Transmirra,
Most significantly,
*187 [t]o suggest, ... that Chevron step two is implicated any time a statute does not expressly negate the existence of a claimed administrative power (i.e. when the statute is not written in “thou shalt not” terms), is both flatly unfaithful to the principles of administrative law ... and refuted by precedent. ... Were courts to presume a delegation of power absent an express withholding of such power, agencies would enjoy virtually limitless hegemony, a result plainly out of keeping with Chevron and quite likely with the Constitution as well.
Railway Labor Executives’ Ass’n v. National Mediation Bd.,
B. The Legislative History of Section 2104(a)
The Secretary’s attempts to overcome the plain meaning of section 2104(a) by reference to its legislative history are equally unsuccessful. 10 The relevant committee reports make clear that section 2104(a) Is intended to be an affirmative grant of authority, not a clarification of the Secretary’s existing authority under section 322(b): “Section 2104 provides the Secretary with authority to delegate duties and powers[.]” H.R.Rep. No. 98-338, at 131 (1983), reprinted in 46 U.S.C.A. Legislative History App. at 541 (West Supp.1997); accord S.Rep. No. 98-56, at 8 (1983) (“This bill ... provides authority to the Secretary to delegate and allow for subdelegation.”). If the Secretary’s view of section 2104(a) were correct, the Congress would have no need to “provide[ ] the Secretary with authority” he already possessed under section 322(b).
Nevertheless, the Secretary refers to language in the House Report accompanying the 1983 recodification of Subtitle II, which, in relevant part, recites:
The word “shall” is used in the mandatory and imperative sense. The word “may” is used in the permissive sense, as “is permitted to” and “is authorized”. The words “may not” aré used in a prohibitory sense, as “is not authorized to” and “is not permitted to”.
H.R.Rep. No. 98-338, at 121 (1983), reprinted in 46 U.S.C.A. Legislative History App. at 529 (West Supp.1997) (emphasis added). The Secretary thus argiies that reading the “may” language in section 2104(a) as implicitly prohibiting delegation to a non-Coast Guard official would in fact transform “may” into “may not”.
To say that “may” is permissive does not lead to the conclusion that it permits
everything,
irrespective of other unambigu
*188
ous words of limitation included in the sentence in which the term is used.
Cf. Ethyl,
The other item of legislative history the Secretary points to is a portion of the Senate Report accompanying the 1983 recodification of Subtitle II, which states in relevant part:
Section 2104 sets forth broad delegation authority for the Secretary, including the authority to delegate duties and powers under subtitle II to any Coast Guard official.
S.Rep. No. 98-56, at 12 (1983) (emphasis added). The Secretary contends that “including” means that the Congress intended to empower the Secretary to delegate Subtitle II powers and duties to non-Coast Guard officials or employees. While this is one possible interpretation of the “including” language, the non-Coast Guard officials suggested by “including” are more likely the designated Customs Service officials who can act for Coast Guard officials pursuant to section 2104(b). See note 6, supra.
C. Implied Limits on the Secretary’s Section 322(b) Authority
The conclusion that section 2104(a) necessarily limits the Secretary’s section 322(b) delegation authority is also buttressed -by the holding in
United States v. Giordano,
Like the provisions at issue in Giordano, section 2104(a) is more specific than section 322(b) and, although it does not expressly prohibit use of the Secretary’s section 322(b) authority, its language and legislative history manifest the Congress’s intent to limit the individuals to whom Subtitle II powers and duties — which involvé primarily maritime safety and commerce — may be delegated. Accordingly, we reach the same conclusion here that the Supreme Court reached in Giordano: section 2104(a), the more specific (and limited) delegation authority, precludes the use of section 322(b) to delegate Subtitle II duties and powers to non-Coast Guard officials.
*189
Finally, construing section 322(b) in this fashion also gives effect to the Congress’s evident intent to circumscribe the Corporation’s operations within narrow geographic and functional boundaries. In other words, the Corporation’s charter — relating to the “construction] ... operation] and maintenance]” of “deep-water- navigation works” in specified portions of the Saint Lawrence River — necessarily limits the Secretary’s section 322(b) authority.
See Ashwood Manor Civic Ass’n v. Dole,
While the trial court erred in not applying
Chevron
step one to both sections, we do not mean to suggest that the error lies in not using the
identical Chevron
step with respect to both. Rather, we conclude that
Chevron
step one requires that the plain language of sections 2104(a) and 322(b) be read together so as to give effect to the Congress’s evident intent in enacting both.
See Engine Mfrs. Ass’n,
III. CONCLUSION
For the foregoing reasons we conclude that the Secretary lacks authority to delegate GLPA powers and duties to the Corporation. Accordingly, we reverse the grant of summary judgment and remand to the district court with instructions to vacate the Secretary’s December 1995 final rule — Organization and Delegation of Powers and Duties; Transfer of Great Lakes Pilotage Authority From the Coast Guard to the Saint Lawrence Seaway Development Corporation, 60 Fed.Reg. 63,444 (1995) (codified at 49 C.F.R. § 1.52(d)-(e) (1997)).
So ordered.
Notes
. Section 983(a)) in relevant part, provides:
The Corporation is authorized and directed to construct, in United States territory, deep-water navigation works substantially in accordance with the "Controlled single stage project, 238-242” ... together with necessary dredging in the Thousand Islands section; and to operate and maintain such works in coordination with the Saint Lawrence Seaway Authority of Canada....
33 U.S.C. § 983(a).
. Section 984(a), in relevant part, provides:
For the purpose of carrying out its functions under this chapter the Corporation—
(5) may make and carry out such contracts or agreements as are necessary or advisable in the conduct of its business;
(7) may appoint and fix the compensation, in accordance with the provisions of chapter 51 and subchapter III of chapter 53 of Title 5, of such officers, attorneys, and employees as may be necessary for the conduct of its business, define their authority and duties, and delegate to them such of the powers vested in the Corporation as the Administrator may determine;
(9) shall determine the character of and the necessity for its obligations and expenditures, and the manner in which they shall be incurred, allowed and paid, subject to provisions of law specifically applicable to Government corporations;
(11) may provide services and facilities necessary in the maintenance and operation of the seaway....
33 U.S.C. § 984(a).
. When the Department of Transportation was established in 1966, Pub.L. No. 89-670, § 2(b)(1), 80 Stat. 931 (1966), the Congress transferred to it various functions and administrative responsibilities of other agencies, including responsibility for the Coast Guard and the Corporation as well as GLPA powers and duties.
. The eleven functions include:
(1) Investigation and prosecution of violations of [GLPA]; (2) registration, qualification, and training of registered pilots; (3) association working rules and dispatching procedures; (4) pilot working conditions; (5) selection of pilots; (6) number of pilots; (7) availability of pilots; (8) number of pilotage pools; (9) articles of association; (10) auditing; and (11) ratemaking.
60 Fed.Reg. 63,444 (1995).
. Both parties apparently assume that the Administrator of the Corporation is "an officer or employee of the Department” for the purpose of section 322(b). While we assume the same in deciding this appeal, we express no opinion as to the correctness of the assumption.
. Section 2104(a) applies here because GLPA responsibilities are among the Secretary’s Title 46, Subtitle II powers and duties. Section 2104(a) is found in Part A (“General Provisions”) and GLPA is found in Part F ("Manning of Vessels”) of Subtitle II. See generally 46 U.S.C.A. (West Supp.1997). Section 2104(b) appears to authorize, in circumstances not applicable here, delegation of Subtitle II powers and duties to a designated Customs Service officer or employee serving in the stead of a Coast Guard official. See 46 U.S.C.A. § 2104(b) (West Supp.1997) ("When this subtitle authorizes an officer or employee of the Customs Service to act in place of a Coast Guard official, the Secretary may designate that officer or employee subject to the approval of the Secretary of the Treasury.”).
. Structurally, it would also be strange for the Congress to address this matter in a portion of Subtitle II that does not refer even indirectly to the Coast Guard’s transfer to Navy control.
. The trial court found (and the Secretary argues) that
expressio unius
cannot be applied unless the statute possesses some undefined measure of specificity that section 2104(a) lacks. While the cases cited as authority for this propo
*186
sition do not appear to establish such a require
ment
— see,
e.g., Michigan Citizens,
. The canon of construction here urged by the Secretary — namely, that we should infer a legislative intent to permit delegation where Congress has not expressly proscribed it, having proscribed it elsewhere, differs from the expressio unius canon. Expressio unius has been described as follows:
Although the expressio unius maxim has had widespread legal application, there is nothing peculiarly legal about it. It is a product of logic and common sense. It acts merely as an aid to determine legislative intent and does not constitute a rule of law. It expresses the leam-ing of common experience that when people say one thing they do not mean something else.
2A Norman J. Singer, Sutherland Stat. Const. § 47.24 (5th ed.1992) (internal quotation marks and notes omitted). The canon relied on by the Secretary, however, according to the same commentator, works differently:
Caution must be exercised in applying the rule that one statute will be interpreted to correspond to analogous but unrelated statutes for the reason that by way of contrast an inclusion or exclusion may show an intent or convey a meaning exactly contrary to that expressed by analogous legislation. Therefore, the rule tends to be of greater value where analogy is made to several statutes or a general course of legislation.
Id. vol. 2B, § 53.05 (notes omitted). But there is no course of legislation expressly proscribing delegation of Subtitle II powers and duties. Instead, the Secretary points only to a provision of the Port and Tanker Safety Act of 1978, codified as amended at 33 U.S.C. § 1229, and a 1984 amendment to Subtitle II, codified as amended at 46 U.S.C.A. § 8503(c) (West Supp.1997).
. While ordinarily we have no need to refer to legislative history at
Chevron
step one, "[Reference to statutory design and pertinent legislative history may often shed new light on congressional intent, notwithstanding statutory language that appears superficially clear.”
NRDC,
. Indeed, if the Secretary relied on the same “permissive” definition of "may” in construing section 322(b), the provision would authorize him to delegate "duties and powers of the Secretary to an officer or employee of the Department” — or to an officer or employee not of the Department. This construction would ignore the limitation imposed by section 322(b)’s key prepositional phrase — "officer or employee of the Department."
