OPINION
The Internal Revenue Code (26 U.S.C.) (the Code) contains a number of statutes of limitations. That governing the assessment and collection of taxes is found in section 6501 of the Code, which generally provides that the amount of any tax imposed “shall be assessed within 3 years after the return was filed.” 26 U.S.C. § 6501(a). This period may be extended by timely agreement of the Secretary and the taxpayer. Id. at § 6501(c)(4). The limitation period for filing a claim for refund is in section 6511 of the Code, which provides that such a claim “shall be filed by the taxpayer within 3 years from the time the return was filed or 2 years from the time the tax was paid.” Id. at § 6511(a). Tying these provisions together is section 6511(c)(1), which provides that “[t]he period for filing claim for credit or refund ... shall not expire prior to 6 months after the expiration of the period within which an assessment may be made pursuant to the agreement or any extension thereof under section 6501(c)(4).” Id. at § 6511(c)(4). The upshot of these provisions is this—when there is an extension of the assessment period, the taxpayer can file for a refund for a given taxable year after the Commissioner is barred from making further assessments for that year. See Electrolux Holdings, Inc. v. United States,
I. BACKGROUND
Before describing the facts in greater detail, it is helpful to understand better the very complex statutory framework against which those facts arise.
A.
Statutory Background
The federal income tax is generally imposed on all income of U.S. corporations without regard to whether vel non such income derived in the United States. See 26 U.S.C. § 61; Cook v. Tait,
As part of the Revenue Act of 1971, Congress enacted provisions that “provided special tax treatment for export sales made by an American manufacturer through a subsidiary that qualified as a ‘domestic international sales corporation’(DISC).” Boeing Co. v. United States,
The DISC provisions proved controversial, almost from the start. Soon after their enactment, they were challenged by member nations of the European Community as an impermissible export subsidy in violation of Article XVI of the General Agreement on Tariffs and Trade (GATT). See 1 S. Prt. 98-169, at 634 (Comm. Print 1984); Congressional Research Serv., “Export Benefits and the WTO: The Extraterritorial Income Exclusion and Foreign Sales Corporations,” (Apr. 24, 2007) (hereinafter “CRS report”). Under GATT, illegal export subsidies can be “as blatant as special tax deductions related to exports or as subtle as the failure to enforce arm’s length pricing between commonly controlled entities.” Philip L. Jelsma, “The Making of A Subsidy 1984: The Tax and International Trade Implications of the Foreign Sales Corporation Legislation,” 38 Stan. L.Rev. 1327, 1331 (1986) (hereinafter “Jelsma”) (citing various GATT authorities). In contending the DISC provisions violated GATT, U.S. trading partners charged that the statute itself provided undue tax benefits and that it had been laxly enforced. Id. at 1327. In 1984, Congress responded by substantially curtailing the tax benefits associated with the DISC provisions and enacting a new export regime in the form of the “foreign sales corporation” (FSC) provisions of the Code. 26 U.S.C. §§ 921-927. See Deficit Reduction Act of 1984, Pub.L. No. 98-369, § 805(b), 98 Stat. 1000-1001 (1984).
The FSC provisions “quickly reach, and rarely leave, a plateau of statutory intricacy seldom rivaled in other sections of the Code.” Boris I. Bittker & James S. Eustice, Federal Income Taxation of Corporations and Shareholders 1117.14, at 17-43 (4th ed.1979). Under these provisions, the foreign trade income of the FSC was defined as its gross income attributable to foreign trading gross receipts (FTGRs). 26 U.S.C. §§ 923(b), 924.
B.
Factual Background
During the years at issue, Abbott Laboratories and U.S. Subsidiaries (Abbott) was involved in the research, development and distribution of products used to prevent and cure health-related issues. Abbott Trading Company, Inc. (ATCI) was a wholly-owned subsidiary of Abbot, incorporated in the United States Virgin Islands. In accordance with sections 922(b) and 927(f)(1) of the Code, ATCI elected to be treated as a FSC for federal income tax purposes. Abbot and ATCI were not members of a consolidated group for purposes of the return provisions of section 1501 of the Code. Rather, they were treated as separate taxpayers, filing separate returns.
During the taxable years at issue, Abbot paid ATCI amounts intended to be the maximum commission allowable on the FTGRs derived from the sale of its export products. For its 1987, 1988 and 1989 taxable years, Abbot calculated ATCI’s commissions by grouping transactions by product group, using the safe harbor provided by section 925(a)(2) and Temp. Treas. Reg. § 1.925(a)lT(a)(2), which taxed 23 percent of the combined taxable income of ATCI and Abbot attributable to FTGRs derived from the sale of export property by ATCI. Per this methodology, ATCI’s taxable income was reported as 8/23 of the FSC commission expense. For the three years listed, Abbott and ATCI timely filed their tax returns (Forms 1120 and 1120-FSC, respectively), reflecting the following:
Abbott’s ACTI’s Commission Taxable Year Deduction Income
1987 _$28,965,502_$10,075,071
1988 _$43,696,910_$15,199,097
1989 _$57,512,571_$19,978,217
Subsequently, for its taxable years 1987, 1988, and 1989, Abbott timely filed Forms 872, extending the assessment limitations period on these years until September 30,1998. See 26 U.S.C. § 6501(c)(4). ATCI also extended the time in which the Commissioner could assess its taxes by filing Forms 872, but only until December 31,1997.
Thereafter, Abbott recalculated its FTGRs for the years in question, using the transaetion-by-transaction method authorized by the Code. The resulting calculations suggested
_1987_1988_1989
Increase Deduction for ATCI Commission $ 6,354,591 $ 9,350,873 $14,435,229
Reduction of Tdx^blc Income_$ 6,354,591 $ 9,350,873 $14,435,229
Overpayment of Income $ 2,538,702 $ 3,179,297 $ 4,907,978
Also on June 29, 1998, ATCI filed, under penalty of perjury, letters with the IRS revealing additional FSC commission income for 1987,1988 and 1989, as follows:
_1987_1988_1989
Total Commission Payable to ATCI_$51,849,517 $79,651,168 $96,546,567
Total Non-exempt Foreign Trade Income_$18,034,817 $27,705,066 $33,581,792
Increase in Taxable Income $ 2,210,316 $ 3,252,514 $ 5,021,005
On December 2, 2004, the IRS denied the claims for refund filed by Abbott.
On November 17, 2006, plaintiff filed its complaint in this case seeking $10,625,977, plus interest. On March 23, 2007, defendant filed its answer. On March 29, 2007, defendant filed an amended answer in which it averred that Abbot’s refund claims had been denied because they were not filed within the time that the IRS could assess additional taxes against ATCI, as allegedly required by Temp. Treas. Reg. § 1.925(a)-lT(e)(4). On April 16, 2007, plaintiff filed a motion for partial summary judgment as to defendant’s additional defense. On June 22, 2007, defendant filed a cross-motion for summary judgment. After briefing was completed, oral argument on this motion was held on February 14, 2008. Thereafter, supplemental briefing was ordered on several issues, which has now been competed.
II. DISCUSSION
Summary judgment is appropriate when there is no genuine dispute as to any material fact and the moving party is entitled to judgment as a matter of law. RCFC 56; Anderson v. Liberty Lobby, Inc.,
When reaching a summary judgment determination, the court’s function is not to weigh the evidence, but to “determine whether there is a genuine issue for trial.” Anderson,
A.
The FSC provisions allowed a U.S. exporter to exempt a portion of the income derived from its exports. These rules applied to two types of FSCs—so-called “buy/ sell” FSCs, in which the parent sold its product to the FSC for resale in foreign markets, and so-called “commission agent” or simply “commission” FSCs, in which the parent paid a commission to the FSC for selling its goods in foreign markets. 26 U.S.C. §§ 925(a), 925(b)(1); see also Edward H. Lieberman, Charles M. Bruce, and James P. Hickey, Taxation of U.S. Persons’ Foreign Income, Tax Management Portfolio 934-lst Foreign Sales Corporations, Taxation of a FSC 94 (2008) (hereinafter “FSC-TMP”).
As noted, various statutory rules allocated taxable income between the FSC and its related supplier, ultimately leading to the calculation of the amount of this exemption. The portion of the FSC’s foreign trade income that was treated as exempt depended upon pricing rules used to allocate export income between the FSC and its related supplier. See 26 U.S.C. §§ 921, 923, 924; 1984 Blue Book at 1045. In this regard, section 925(a) of the Code provided, in pertinent part,—
SEC. 925 TRANSFER PRICING RULES
(a) In General.-—In the case of a sale of export property to a FSC by a person described in section 482, the taxable income of such FSC and such person shall be based upon a transfer price which would allow such FSC to derive taxable income attributable to such sale (regardless of the sales price actually charged) in an amount which does not exceed the greatest of—
(1) 1.83 percent of the foreign trading gross receipts derived from the sale of such property by such FSC,
(2) 23 percent of the combined taxable income of such FSC and such person which is attributable to the foreign trading gross receipts derived from the sale of such property by such FSC, or
(3) taxable income based upon the sales price actually charged (but subject to the rules provided in section 482).
This subsection, however, dealt only with buy/sell FSCs. To provide for commission FSCs, Congress authorized the Secretary of the Treasury to prescribe regulations with respect to FSC commissions, rentals, and marginal costing that were consistent with the rules set forth in section 925(a). 26 U.S.C. § 925(b).
In 1987, the Secretary promulgated temporary regulations under section 925(a), specifically invoking his authority under sections 925(b) and 7805 of the Code. See 52 Fed.Reg. 6428-01 (March 3, 1987).
(4) Subsequent determination of transfer price, rental income or commission. The FSC and its related supplier would ordinarily determine under section 925 and this section the transfer price or rental payment payable by the FSC or the commission payable to the FSC for a transaction before the FSC files its return for the taxable year of the transaction. After the*103 FSC has filed its return, a redetermination of those amounts by the Commissioner may only be made if specifically permitted by a Code provision or regulations under the Code. Such a redetermination would include a redetermination by reason of an adjustment under section 482 and the regulations under that section or section 861 and § 1.861-8 which affects the amounts which entered into the determination. In addition, a redetermination may be made by the FSC and related supplier if their taxable years are still open under the statute of limitations for making claims for refund under section 6511 if they determine that a different transfer pricing method may be more beneficial. Also, the FSC and related supplier may redetermine the amount of foreign trading gross receipts and the amount of the costs and expenses that are used to determine the FSC’s and related supplier’s profits under the transfer pricing methods. Any rede-termination shall affect both the FSC and the related supplier. The FSC and the related supplier may not redetermine that the FSC was operating as a commission FSC rather than a buy-sell FSC, and vice versa.
This regulation thus required—as a condition precedent to allowing a taxpayer-initiated re-determination of FSC commissions—that: (i) the limitation period under section 6511 be open with respect to both the FSC and the related supplier; and (ii) the redetermination “affect” both the FSC and the related supplier.
The parties disagree as to the meaning of these conditions, particularly the latter. Defendant asserts that for the redetermination to “affect” both the FSC and the related supplier, the IRS must be able to assess additional tax due with respect to the taxpayer whose income tax liability is increased as a result of the redetermination. It argues that because an assessment could not occur against the FSC here, owing to the running of the statute of limitations on assessments, plaintiff could not redetermine its FSC commissions. Not so, contends plaintiff, for two reasons. First, it asseverates, the “affect” language does not require that the IRS be able to assess any additional tax generated by the redetermination. It merely requires that correlative adjustments be made to the income and expenses of the FSC and the related supplier following a redetermination—bookkeeping entries that need not lead to the assessment of tax against the party whose income increased under the redetermi-nation. Second, plaintiff contends that if the regulation limited redeterminations in the fashion defendant argues, it would be invalid as establishing timing limitations inconsistent with the statutory requirements contained in section 6511(c)(1) of the Code. The court will consider these claims seriatim.
B.
The first issue joined by the parties focuses on the meaning of the temporary regulation. Rules comparable to those employed in statutory construction apply when interpreting an agency regulation. Tesoro Hawaii Corp. v. United States,
So, we begin with the language of the regulation. It provides first that “a redeter-mination may be made by the FSC and related supplier if their taxable years are still open under the statute of limitations for making claims for refund under section 6511 if they determine that a different transfer pricing method may be more beneficial.”
Delving deeper into this question requires consideration of a portion of the temporary regulation not extensively considered in Union Carbide—that which provides that a re-determination must “affect” both the FSC and the related supplier. Dictionary definitions contemporary to the promulgation of the temporary regulation defined the word “affect” variously. Some of them suggested that to “affect” a situation there had to be a “material” influence. See, e.g., Webster’s Third New Int’l Dictionary 35 (1993) (“to act upon, ... to produce a material influence upon or alternation in”); The Oxford English Dictionary 211 (2d ed.1989) (“to make a material impression on, to act upon, influence, move, touch, or have an effect on”). But others definitions, among them that in Black’s Law Dictionary, defined “affect” without such a materiality component. See Black’s Law Dictionary 57 (6th ed.1990) (“to act upon, influence, change, enlarge or abridge”). Variations in these definitions are, in turn, reflected in the decisional law, with some cases construing the word “affect” as requiring a “material” impact and others not.
Such is also the case here. Viewed in context, the word “affect” appears to require that the redetermination of the transfer price charged to the FSC (or commission paid to the FSC) materially influence the taxes owed by the FSC and the related supplier. On a broad scale, this conclusion proceeds from the context provided by the overall regulation, the raison d’etre of which was to define the allocation of export income between the FSC and its supplier. More narrowly, however, this same view is reinforced by the sentence in which the proviso lies, in which the word “affect” is unqualified and, conspicuously, not tied to any particular tax attribute of the corporations involved. Rather, that sentence stated that the redetermination had to “affect” the entities themselves, using this holistic syntax presumably to signal that the entities had to accept not some, but all the tax benefits and burdens occasioned by the redetermination. This reciprocity requirement seemingly anticipated that a refund claim would be filed by the entity whose taxes were reduced by the adjustment, while an amended return would be filed by the entity whose taxes were increased by the correlative adjustment—and, in fact, that is precisely how the IRS construed the regulation in a formal notice issued in 1999.
With this understanding, it appears, then, that the twin conditions in the temporary regulation were designed to work in tandem to prevent a taxpayer from having its tax cake and eating too—that is, from enjoying the tax decrease triggered by the redetermi-
For one thing, that interpretation has the virtue of being the only one that gives meaning to all of the regulation’s terms—not only those in the (e)(4) subparagraph, but in the surrounding subparagraphs, as well. By comparison, plaintiffs limiting construction— that the “affect” requirement is intended merely to require the FSC and related supplier to establish book entries consistent with the redetermination—renders portions of Temp. Treas. Reg. § 1.925(a)-lT(e) surplus-age. In particular, the latter construction would attribute to subparagraph (4) a requirement that is already found in subpara-graph (5), to wit—
If a redetermination under paragraph (e)(4) of this section is made ... the person who was underpaid under this redeter-mination shall establish (or be deemed to have established), at the date of the rede-termination, an account receivable from the person with whom it engaged in the transaction equal to the difference between the amounts as redetermined and the amounts (if any) previously paid and received, plus the amount (if any) of the account receivable determined under paragraph (e)(3) of this section that remains unpaid. A corresponding account payable will be established by the person who underpaid the amount due.
Moreover, plaintiffs interpretation would give the requirements in subparagraph (5) themselves a somewhat hollow ring, by increasing the likelihood that the book entries so carefully prescribed therein would have no real tax ramifications.
Additional support for defendant’s understanding of the “affect” language comes from the purpose of the FSC provisions and the attendant regulations.
Yet, interpreted as plaintiff would interpret it, the regulation would grant tax benefits far greater than those afforded by the supplanted DISC provisions. Indeed, this interpretation—which would exempt not some, but all the income shifted to the FSC via the redetermination, and do so for any taxpayer that had agreed to extend the statute of limitations on assessment—would make a shambles out of Congress’ carefully tailored efforts to enact a partial exemption of foreign export income that would pass muster under GATT. It would also run contrary to yet another canon of construction— that statutes and regulations should be construed consistently with international treaty obligations.
Finally, it should not be overlooked that, to the extent the regulations are ambiguous, the court is obliged to give broad deference to the IRS interpretation thereof. This is true “even when that interpretation is offered in the very litigation in which the argument in
Accordingly, the court concludes that Temp. Treas. Reg. § 1.925(a)-l(e)(4) required, inter alia, that amended returns reflecting a redetermination had to be filed while the statute of limitations for assessment was open as to the entity whose income would be increased by the redetermination.
C.
Having found that the regulation should be interpreted in the fashion that defendant argues, it remains for the court to consider whether the regulation, as so interpreted, is valid. The court concludes that it is.
At the outset, it is important to recognize that Temp. Treas. Reg. § 1.925(a)-lT(e)(4) is a legislative regulation, promulgated pursuant to a specific grant by Congress—that found in section 925(b) of the Code. The regulation filled a gap that Congress intended the agency to fill. See Chevron, U.S.A., Inc. v. Nat. Resources Def. Council,
In enacting the FSC provisions, Congress did not specify when it might be appropriate to allow a redetermination of FSC taxable income; in fact, it did not mandate such redeterminations at all. This gap is not surprising, for defining the availability of re-determinations “is the kind of highly, technical, specialized interstitial matter that Congress often does not decide itself.” Zuni Pub. School Dist.,
Nor is Temp. Treas. Reg. § 1. 925(a)l-T(e)(4), as construed by defendant, inconsistent with timing provisions in section 6511(c)(1) of the Code. Contrary to plaintiffs claim, the regulation did not redefine the timing requirements for a claim for refund. Rather, it merely ensured that redetermina-tions of FSC income would not whipsaw the Treasury and undercut the carefully-drafted
Finally, even if the court believed that the challenged regulation were interpretative— which it does not—it would still be obliged to “treat the regulation with deference.” Boeing,
III. CONCLUSION
The court will not paint the lily. Based on the foregoing, the court DENIES plaintiffs motion for partial summary judgment and GRANTS defendant’s cross-motion for summary judgment. The Clerk is hereby ordered to dismiss the complaint.
IT IS SO ORDERED.
Notes
. Treasury regulations promulgated under the War Revenue Act of 1917, ch. 63, 40 Stat. 300 (1917), authorized the government to require affiliated domestic corporations and partnerships to file consolidated returns. These regulations were essentially codified by section 1331(b) of the Revenue Act of 1921, ch. 136, 42 Stat. 227, 319 (1921). In 1928, Congress enacted section 45 of the Revenue Act of 1928, 45 Stat. 791, 806 (1928), the precursor to current section 482 of the Code. Section 482 empowers the Commissioner of Internal Revenue to allocate income, deductions, and credits between two or more controlled entities, when necessary to prevent tax evasion or clearly to reflect income. 26 U.S.C. § 482; see also Francis M. Allegra, “Section 482: Mapping the Contours of the Abuse of Discretion Standard of Judicial Review,” 13 Va. Tax Rev. 423, 424-31 (1994).
. While not conceding that the DISC provisions violated GATT, the Senate indicated that the United States had agreed to modify its tax legislation to comply with the principles outlined in a 1981 GATT Panel Report, to wit, that "GATT signatories are not required to tax export income attributable to economic processes located outside their territorial limits,” provided that "arm’s length pricing principles should be observed in transactions between exporting enterprises and foreign buyers under common control.” S. Prt. No. 98-169, at 634 (1984). See also CRS Report at 2.
. All references to 26 U.S.C. §§ 921-27 are to the versions as they existed during the years in question and prior to being repealed in 2000. Likewise, all references to the temporary regulations issued under these provisions are to the versions in effect during the years in question.
. The first two methods enumerated by these provisions represent safe havens in the sense that the allocations established thereunder could not be challenged by the IRS under section 482 of the Code. See also Temp. Treas. Reg. §§ 1.925(a)—lT(c)(2); 1.925(a)-lT(c)(3); 1.925(a)lT(c)(6).
. An example similar to that contained in the 1984 Act’s legislative history illustrates how the FSC tax exemption is calculated. Assume that a corporation owns a FSC and that the foreign trade income of the FSC is $46. Under the statute, exempt foreign trade income for a corporate-owned FSC was 15/23 of the foreign trade income, or $31. See 1984 Bluebook, supra, at 1045.
. Specifically, section 925(b) of the Code stated—
(b) Rules for Commissions, Rentals, and Marginal Costing.—The Secretary shall prescribe regulations setting forth—
(1) rules which are consistent with the rules set forth in subsection (a) for the application of this section in the case of commissions, rentals, and other income, and
(2) rules for the allocation of expenditures in computing combined taxable income under subsection (a)(2) in those cases where a FSC is seeking to establish or maintain a market for export property.
. Section 7805(a) of the Code provides that "the Secretary shall prescribe all needful rules and regulations for the enforcement of this title, including all rules and regulations as may be necessary by reason of any alteration of law in relation to internal revenue.”
. In Union Carbide Corp. and Subs. v. Comm’r of Internal Revenue,
. The following cases required that there be some "material” influence. See Prati v. United States,
. The Supreme Court has oft-noted that "[w]ords that can have more than one meaning are given content ... by their surroundings.” Whitman v. Am. Trucking Ass'ns,
. In IRS Notice 99-24, 1999-
Temp. Treas. Reg. § 1.925(a)-lT(e)(4) permitted FSCs and their related suppliers, upon determining that a different transfer pricing method or grouping of transactions may be more beneficial, to file amended returns to effect a redetermination of the transfer price payable by the FSC or the commission payable to the FSC. Such a redetermination could be made if the taxable years of the FSC and its related supplier were open under the statute of limitations for making claims for refund under section 6511 and if the redetermination affected both the FSC and the related supplier.
. The Federal Circuit is among the many courts that have recognized that "no statutory provision expressly authorizes the filing of amended tax returns.” Western Co. of N. Am. v. United States,
. The IRS has issued regulations that recognize the existence of "amended” returns and, indeed, has forms that are enumerated as such. See Treas. Reg. § 301.6402-3. Under these regulations, the IRS treats the amended return as a claim for refund or credit, subject to the statute of limitations in section 6511. Id. at § 301.6402-3(a)(5); see also Western Co. of N. Am.,
. Shoehorning its interpretation of the “affect" language into the regulation, plaintiff asserts that the regulation required the offsetting book entries, even where additional taxes could not be assessed, to control the calculation of the FSC’s earnings and profits and, ultimately, the FSC’s ability to carry over or carry back net operating losses. But, again the role that plaintiff would ascribe to Temp. Treas. Reg. § 1.925(a)-lT(e)(4) is actually performed by (e)(5). As such, plaintiff's argument in this regard serves only to highlight the fact that it would essentially read the "affect” language out of the regulation altogether.
. See, e.g., Holloway v. United States,
. 1984 Blue Book, supra at 1054 ("Congress intended that the pricing principles that govern the determination of the taxable income of a FSC comply with the GATT rules.”); 52 Fed.Reg. 6428-01, 6428 (March 3, 1987) (noting, in promulgating temporary regulations, that “[tjhis system of taxation was designed to satisfy GATT decisions that a country is not required to tax export income attributable to economic processes located outside of its territorial limits if that income is earned on an arm's length basis.”).
. Sale v. Haitian Ctrs. Council, Inc.,
. Archer-Daniels-Midland Co. v. United States,
. Here, as noted above, the IRS' interpretation of the temporary regulation predates this litigation. Plaintiff claims otherwise, pointing to a sentence in the Commissioner's trial brief in Union Carbide, which stated that the regulation at issue "does not require that the limitations period for assessing tax under section 6501 be open with respect to [the FSC.].” But, as with plaintiff's argument regarding the regulation itself, this contention takes the quoted language out of context. A fair reading of the Commissioner’s brief indicates that the entire focus thereof was on the portion of the regulation that required that the refund limitations period of section 6511 be open for both entities and not on the portion requiring that a redetermination "affect” both such entities. Reflecting this, the Tax Court in Union Carbide indicated that it was not reaching any questions involving the expiration of limitations period under section 6501.
. Lest there be any confusion, the court does not mean to suggest that this is an occasion for the invocation of the so-called "legislative reenactment" doctrine, under which Congress would be presumed to have known about the IRS’ interpretation of the DISC regulation and thus to have adopted that construction. Application of that doctrine requires that there be a "long-continued executive construction,” United States v. Cerecedo Hermanos y Compania,
. Given the limited facts of this case, this court need not consider how long before the termi
. Plaintiff asserts that the regulation in question is interpretative. It notes that in 1987, the Treasury Department incorporated the terms of the temporary regulation, by reference, into a proposed final regulation, the preamble of which indicated that "the Internal Revenue Service has concluded that the regulations proposed herein are interpretative and that the notice of public procedure requirements of 5 U.S.C. 553 do not apply.” 52 Fed.Reg. 6467-01, 6467 (March 3, 1987). This reference might be more persuasive were it not for several countervailing facts. First, in the decision that promulgated Temp. Treas. Reg. § 1.925(a)-lT(e)(4), the Treasury Department listed as authority for the issuance not only its general rulemaking authority under section 7805(a), but also the specific grant of legislative rulemaking authority in section 925(b)(1). 52 Fed.Reg. 6428-01, 6434 (March 3, 1987) ("Section 1.925(a)-lT also issue under 26 U.S.C. 925(b)(1) and 927(d)(2)(B).”). Temporary, proposed and final regulations that were later issued under section 925(a) all similarly invoked section 925(b)(1) as a source for their issuance, as well. See 66 Fed.Reg. 13427-01, 13428 (March 6, 2001) (promulgating a final version of Treas. Reg. § 1.925(a)—1); 63 Fed. Reg. 10351, 10351 (March 3, 1998) (issuing proposed regulations); 63 Fed.Reg. 10351, 10351 (March 3, 1998) (promulgating modified temporary regulations). None of these notices referred to these regulations as being "interpretative.” Finally, in 1984, when the Treasury Department issued the original version of the temporary regulations under section 925—albeit ones that did not include the specific provisions at issue—it not only listed those regulations as being authorized by section 925(b), but also invoked the exception to the notice and comment procedures provided by 5 U.S.C. § 553(b)(3)(B). 49 Fed. Reg. 48273-02, 48274 (Dec. 12, 1984) (noting that "[bjecause of the need for immediate guidance in this regard, the Internal Revenue Service has found it to be impractical to issue these temporary regulations ... with notice and public comment”). The latter point is significant for this exception to the APA notice and comment procedures would not have been needed had the temporary regulations under section 925 been viewed as interpretative. See 5 U.S.C. § 553(b)(3)(A) (exempting "interpretative” regulations from these procedures).
. The Supreme Court burnished these twin requirements in Motor Vehicle Mfrs. Ass’n of the United States v. State Farm Mut. Automobile Ins. Co.,
[I]f the agency has relied on factors which Congress has not intended it to consider, entirely failed to consider an important aspect of the problem, offered an explanation for its decision that runs counter to the evidence before the agency, or is so implausible that it could not be ascribed to a difference in view or the product of agency expertise.
Id. at 43,
. Mead Corp.,
. See United States v. Riverside Bayview Homes, Inc.,
. See also Northwestern Elec. Co. v. FPC,
