
770 F.Supp.2d 1372 (2011)
MID CONTINENT NAIL CORPORATION, Plaintiff,
v.
UNITED STATES, Defendant, and
Target Corporation, Defendant-Intervenor.
Slip Op. 11-55. Court No. 10-00247.
United States Court of International Trade.
May 17, 2011.
*1373 Wiley Rein, LLP, (Adam H. Gordon, Lori E. Scheetz, Robert E. DeFrancesco, III,) for Mid Continent Nail Corporation, Plaintiff.
Tony West, Assistant Attorney General; Jeanne E. Davidson, Director, Commercial Litigation Branch, Civil Division, United States Department of Justice, Patricia M. McCarthy, Assistant Director, Commercial Litigation Branch, Civil Division, United States Department of Justice, (David D'Alessandris); Brian Soiset, Office of Chief Counsel for Import Administration, United States Department of Commerce, Of Counsel, for the United States, Defendant.
Jochum, Shore, & Trossevin, PC, (Marguerite E. Trossevin and James J. Jochum) for Target Corporation, Defendant-Intervenor.


*1374 OPINION

TSOUCALAS, Senior Judge.
This matter comes before the Court upon the Motion for Judgment on the Agency Record filed by Plaintiff, Mid Continent Nail Corporation ("Mid Continent Nail") on November 23, 2010 pursuant to Rule 56.2 of the Rules of the United States Court of International Trade. Mid Continent Nail challenges a determination by the United States Department of Commerce ("Commerce") that steel nails imported as components of household tool kits fall outside the scope of an antidumping duty order on certain steel nails from the People's Republic of China ("PRC"). See Final Scope Ruling  Certain Steel Nails from the People's Republic of China ("PRC"), Request by Target Corporation (Aug. 10, 2010), Public Rec. 27, ("Final Scope Ruling").[1] Mid Continent Nail argues that the Final Scope Ruling is not supported by substantial evidence and is otherwise not in accord with law primarily because its analysis focused on the household tool kits rather than the steel nails contained therein. Additionally, Mid Continent Nail asserts that Commerce failed to properly conduct the analysis required in scope inquiries under 19 C.F.R. § 351.225, and seeks a remand of this matter for further proceedings. Defendant, United States ("Government"), and Defendant-Intervenor, Target Corporation ("Target"), oppose remand of this matter arguing that Commerce conducted a sufficient scope analysis, and that its determination was supported by substantial evidence and otherwise in accord with the law.
For the reasons set forth below, the Court finds that Commerce's determination was unsupported by substantial evidence and not in accord with the law and remands this matter for proceedings consistent with this opinion.

BACKGROUND
On August 1, 2008, Commerce issued an order imposing an antidumping duty on steel nails from the PRC. See Notice of Antidumping Duty Order: Certain Steel Nails from the People's Republic of China, 73 Fed.Reg. 44,961 (Aug. 1, 2008) ("Final Order"). The scope of the merchandise covered by the Final Order is as follows:
The merchandise covered by this proceeding includes certain steel nails having a shaft length up to 12 inches. Certain steel nails include, but are not limited to, nails made of round wire and nails that are cut. Certain steel nails may be of one piece construction or constructed of two or more pieces. Certain steel nails may be produced from any type of steel, and have a variety of finishes, heads, shanks, point types, shaft lengths and shaft diameters. Finishes include, but are not limited to, coating in vinyl, zinc (galvanized, whether by electroplating or hot-dipping one or more times), phosphate cement, and paint. Head styles include, but are not limited to, flat, projection, cupped, oval, brad, headless, double, countersunk, and sinker. Shank styles include, but are not limited to, smooth, barbed, screw threaded, ring shank and fluted shank styles. Screw-threaded nails subject to this proceeding are driven using direct force and not by turning the fastener using a tool that engages with the head. Point styles include, but are not limited to, diamond, blunt, needle, chisel, and no point. Finished nails may be sold in bulk, or they may be collated into strips or coils using materials such as plastic, *1375 paper, or wire. Certain steel nails subject to this proceeding are currently classified under the Harmonized Tariff Schedule of the United States ("HSTUS") subheadings 7317.00.55, 7317.00.65 and 7317.00.75. Excluded from the scope of this proceeding are roofing nails of all lengths and diameter, whether collated or in bulk, and whether or not galvanized. Steel roofing nails are specifically enumerated and identified in ASTM Standard F 1667 (2005 revision) as Type I, Style 20 nails. Also excluded from the scope of this proceeding are corrugated nails. A corrugated nail is made of a small strip of corrugated steel with sharp points on one side. Also excluded from the scope of this proceeding are fasteners suitable for use in powder-actuated hand tools, not threaded and threaded, which are currently classified under HTSUS 7317.00.20 and 7317.00.30. Also excluded from the scope of this proceedings are thumb tacks, which are currently classified HTSUS 7317.00.10.00. Also excluded from the scope of this proceeding are certain brads and finish nails that are equal to or less than 0.0720 inches in shank diameter, round or rectangular in cross section, between 0.375 inches and 2.5 inches in length, and that are collated with adhesive or polyester film tape backed with a heat seal adhesive. Also excluded from the scope of this proceeding are fasteners having a case hardness greater than or equal to 50 HRC, a carbon content greater than or equal to 0.5 percent, a round head, a secondary reduced-diameter raised head section, a centered shank, and a smooth symmetrical point, suitable for use in gas-actuated hand tools.
While the HTSUS subheadings are provided for convenience and customs purposes, the written description of the scope of this investigation is dispositive.
Final Order, 73 Fed.Reg. at 44,961-44,-962.[2]
Target imports household tool kits from the PRC. The tool kits contain tools such as hammers, measuring tapes, screwdrivers, and wrenches. See Letter from Jochum, Shore & Trossevin to the Secretary of Commerce, Re: Certain Steel Nails from the People's Republic of China: Scope Ruling Request Regarding Household Tool Kits (Dec. 11, 2009) ("Scope Ruling Request" or "Request"), PR 1 at 2-3, CR 1 at 2-3. Of relevance to this matter, the tool kits also include a plastic container holding approximately fifty one-inch brass coated steel nails. Id. at 2-3, 6. On December 11, 2009, Target requested a ruling from Commerce that these tool kits are outside the scope of the Final Order.
In making its Request, Target conceded that if the nails contained in the tool kits were considered on their own they would be subject to the Final Order. Scope Ruling Request at 5. It argued, however, that Commerce should focus its scope analysis not on the nails alone, but on the entire tool kit. Target based this argument, first, on the Final Order's silence regarding coverage of nails packaged with non-subject items. Second, Target relied on prior scope rulings that considered items containing both subject and non-subject goods, otherwise known as "mixed-media" items or sets. See Government's Mem. in Opp'n to Pl.'s Mot. for J. upon the Agency R. ("Gov.'s Opp'n") at 10. In these earlier rulings, Commerce focused its scope inquiry on the mixed-media item rather than the subject good contained within it because the subject good was a *1376 minor component of the mixed-media item, consumable, and easily replaced with non-subject merchandise. Scope Ruling Request at 5.
Target stated that when using the approach enunciated in these prior scope rulings, Commerce subjected the mixed-media item to analysis under the factors set forth in 19 C.F.R. § 351.225(k)(2)[3] ("(k)(2) factors"). Addressing each of the (k)(2) factors in turn, Target argued that the physical characteristics, advertising and display methods, purchaser expectations, ultimate use, and different channels of trade in which subject nails and the tool kits are sold show that the tool kits are distinct enough from subject nails to be outside the scope of the Final Order.
Mid Continent Nail, a domestic manufacturer of nails and original petitioner in the antidumping proceedings, see Final Order, 73 Fed.Reg. at 44,962 n. 3, opposed Target's Scope Ruling Request. See Letter from Wiley Rein to the Secretary of Commerce, Re: Certain Steel Nails from the People's Republic of China: Opposition to Target Corporation's Request to Exclude Steel Nails Packaged With Non-Subject Merchandise From the Scope of This Order (Dec. 22, 2009), PR 2. Mid Continent Nail argued that it is impermissible to bypass the factors set forth in 19 C.F.R. § 351.225(k)(1) ("(k)(1) factors") and begin with the (k)(2) factors, as advocated by Target. Proper adherence to case precedent and weighing of the sources identified by the (k)(1) factors, Mid Continent Nail continued, would show that steel nails imported in mixed-media sets remain subject to the Final Order despite being packaged with non-subject items.
Mid Continent Nail first pointed to the scope language of the Final Order itself. It argued that the Final Order's silence regarding nails packaged in tool kits was irrelevant to the nails' inclusion because the Final Order clearly includes all steel nails matching a broad physical description unless those nails fit within an articulated exclusion. PR 2 at 5-8. As seen above, there are six exclusions from the Final Order's scope: roofing nails, corrugated nails, thumb tacks, small finishing nails, and certain nails used in either powder- or gas-actuated tools. See Final Order, 73 Fed.Reg. at 44,961-44,962. The scope language excludes no nails based on their packaging or inclusion in a mixed-media set. Mid Continent Nail also argued that prior scope ruling precedent supported including subject nails within the scope even though they were packaged in a set with non-subject goods. PR 2 at 10-14.
Finally, Mid Continent Nail noted that during the antidumping proceedings, Stanley Fastening Systems, LP ("Stanley"), an importer of nail gun sets comprised of a *1377 nail gun, nails, and a carrying case, sought a determination that the nails in its sets were outside the scope language. See PR 2 at 8-9, PR 6, Att. 1. The domestic manufacturers who filed the antidumping petition ("Petitioners") responded in opposition stating
[T]hey intend and have always intended these proceedings to cover all certain steel nails exhibiting the physical characteristics described in the written scope description, whether imported alone or as part of a set of goods including non-scope merchandise. To the extent the Department [of Commerce] wishes to add clarifying language to the written description of the scope concerning this matter, Petitioners have no objection.
See Letter from Kelley Drye Collier Shannon to the Secretary of Commerce, Re: Certain Steel Nails from the People's Republic of China (Aug. 9, 2007), PR 2, Ex. 3 at 6 ("Petitioners' Scope Letter"). No objections were filed to the Petitioners' Scope Letter; however, Commerce did not add the suggested clarifying language to the Final Order.[4]
Commerce issued the Final Scope Ruling on August 10, 2010 excluding the steel nails contained in the tool kits. First, Commerce stated that it had examined the (k)(1) factors and concluded that they were not dispositive as to whether the Final Order's scope applied to "brass coated steel nails in household tool kits." Final Scope Ruling at 5. Commerce proceeded to an analysis of the merchandise under the (k)(2) factors. Id. It commenced this analysis by stating that it had "examined each of the household tool kits as a set containing both brass coated nails and other items." Id. (emphasis added). As a basis for its decision to focus its examination in this manner, Commerce stated:
While we acknowledge that Target's brass coated steel nails would meet the physical requirements of steel nails that fall within the scope of the Order if they were imported without any of the other tool kit components, we also take into consideration that they were imported in household tool kits containing non-subject merchandise. Thus, the proper focus of the analysis is on the nails as contained in the household tool kits.
Id.[5]
Based on its analysis of the (k)(2) factors, Commerce concluded that the six tool kits containing steel nails fall outside the scope of the Final Order. Mid Continent Nail initiated this action seeking review of Commerce's determination on August 25, 2010.

JURISDICTION
The Court has jurisdiction over this matter pursuant to Section 516(a)(2)(B)(vi) of the Tariff Act of 1930, as amended, 19 *1378 U.S.C. § 1516a (a)(2)(B)(vi) (2006),[6] and 28 U.S.C. § 1581(c) (2006).

STANDARD OF REVIEW and LEGAL STANDARD
The Court will uphold a scope determination by Commerce unless it is "unsupported by substantial evidence on the record, or otherwise not in accord with law." 19 U.S.C. § 1516a (b)(1)(B)(i). Substantial evidence is "such relevant evidence as a reasonable mind might accept as adequate to support a conclusion." Huaiyin Foreign Trade Corp. (30) v. United States, 322 F.3d 1369, 1374 (Fed.Cir.2003) (quoting Consol. Edison Co. v. NLRB, 305 U.S. 197, 229, 59 S.Ct. 206, 83 L.Ed. 126 (1938)). "The court gives significant deference to Commerce's interpretation of its own orders, but a scope determination is not in accordance with the law if it changes the scope of an order or interprets an order in a manner contrary to the order's terms." Allegheny Bradford Corp. v. United States, 28 CIT 830, 842, 342 F.Supp.2d 1172, 1183 (2004). In other words, while Commerce "enjoys substantial freedom to interpret and clarify its antidumping duty orders . . . it may not change them." Ericsson GE Mobile Commc'ns, Inc. v. United States, 60 F.3d 778, 782 (Fed.Cir.1995); see also Tak Fat Trading Co. v. United States, 396 F.3d 1378, 1382 (Fed.Cir.2005) ("The language of the order determines the scope of an antidumping duty order.").
Notwithstanding this primacy, antidumping orders sometimes employ general language when defining the scope of the merchandise covered. See 19 C.F.R. § 351.225(a); see also Duferco Steel, Inc. v. United States, 296 F.3d 1087, 1096 (Fed. Cir.2002). This general language can render the order's scope ambiguous, and interpretive aids become necessary. In these instances, Commerce interprets the order pursuant to 19 C.F.R. § 351.225, the regulation governing the initiation and prosecution of scope inquiries. Section 351.225(d) directs Commerce to first utilize the (k)(1) factors to determine whether a particular product falls within the scope of the order at issue. When the (k)(1) factors "are not dispositive" regarding an order's scope, Commerce is then directed to consider the (k)(2) factors. 19 C.F.R. § 351.225(k)(2).

ANALYSIS
As noted above, in the Final Scope Ruling Commerce analyzed the tool kits containing steel nails under the (k)(2) factors after determining that the (k)(1) sources were not dispositive. Final Scope Ruling at 5. Commerce's entire (k)(1) analysis reads as follows:
Pursuant to 19 CFR 351.225(k)(1) and as stated above, the Department [of Commerce] first examined the descriptions of the merchandise contained in the petition, the determinations of the Secretary and the ITC, and the initial investigation in examining Target's scope request. On March 18, 2010, we initiated a formal scope inquiry of Target's brass coated steel nails in household tool kits, finding that the descriptions of the merchandise contained in the petition, the determinations of the Secretary and ITC, and the initial investigation were not dispositive in this case. Therefore, we have examined Target's brass coated steel nails in household tool kits pursuant to the criteria set forth in section 351.225(k)(2) of the Department's regulations to determine if they are covered by the scope of the Order.

Final Scope Ruling at 5.
This perfunctory recitation by Commerce failed to address several significant *1379 items that should have been considered before turning to the (k)(2) factors. For example, Commerce failed to address the Petitioners' Scope Letter which made clear the Petitioners' intention that their proposed scope language would include subject goods packaged with non-subject items. This failure alone renders the Final Scope Ruling unsupported by substantial evidence. See Allegheny Ludlum Corp. v. United States, 24 CIT 452, 479, 112 F.Supp.2d 1141, 1165 (2000) ("It is . . . well-established that Commerce's total failure to consider or discuss record evidence which, on its face, provides significant support for an alternative conclusion renders the Department's determination unsupported by substantial evidence.").
More significantly, it is clear that Commerce commenced its analysis with its focus already on the tool kits, and not the steel nails. Commerce never addressed in any substantive way, however, its decision to examine the tool kits rather than the steel nails.[7] It simply stated that the tool kits would be examined because the nails were packaged therein with non-subject merchandise. See Final Scope Ruling at 5. A more thorough explanation was necessary. See NMB Singapore Ltd. v. United States, 557 F.3d 1316, 1319 (Fed.Cir.2009) ("Commerce must explain the basis for its decisions; while its explanations do not have to be perfect, the path of Commerce's decision must be reasonably discernable to a reviewing court.").
Properly addressing this issue is especially important in mixed-media cases like this one because the scope inquiry steps set forth above presuppose a "product" to which they are being applied. If there is a dispute regarding what that product is, therefore, resolving that dispute is one of the most important steps Commerce makes during the inquiry. Here, the decision to examine the tool kits proved outcome determinative because there was universal agreement that the nails considered on their own were subject to the Final Order. In deciding that its inquiry would focus on the tool kits, Commerce addressed none of the parties' arguments on this issue and did not expressly rely on the Final Order, prior scope rulings, or other basis. A ruling from Commerce with such infirmities will normally not be affirmed. See USX Corp. v. United States, 11 CIT 82, 88, 655 F.Supp. 487, 492 (1987) ("The court cannot defer to a decision which is based on inadequate analysis or reasoning."). However, because the Final Order and its prior scope rulings provide possible paths for Commerce's decision to examine the tool kits, the Court takes up each in turn.

1. The Final Order
Target and Mid Continent Nail are correct that the Final Order is silent regarding coverage of nails packaged with non-subject items. However, this silence does not amount to an ambiguity. The Final Order gives a specific description of the broad range of nails falling within its scope. It continues by setting forth six types of nails excluded from that scope. None of these exclusions turn on whether the nails are packaged with non-subject items, or whether they are a minor part of the overall item in which they are packaged. The only conclusion warranted by the Final Order's language, then, is that packaging does nothing to change the scope's broad coverage of steel nails.
*1380 Target argues that this case "is not a packaging case," because it concerns unique products  tool kits. See Target's Resp. in Opp'n to Pl.'s R. 56.2 Mot. for J. upon the Agency R. ("Target's Opp'n) at 19. It further states that Commerce alone can determine whether the product presented for examination is a separate item, unique from the subject good. Id. (citing Walgreen, 620 F.3d at 1355). First, Target overstates the unique nature of the tool kits. The tool kits are a collection of tools that will be used by the consumer as tools, and nails that will be used by the consumer as nails. Second, while it is true that Commerce defines the product under review when necessary, Walgreen is clear that this determination must "take into account the unique language of the Final Order" at issue in the case. Walgreen, 620 F.3d at 1355. Here, deciding that the nails' inclusion in tool kits created a new product and ultimately excluding the nails from the Final Order's scope was an unreasonable interpretation of the Final Order. By focusing its inquiry on the tool kits and excluding the otherwise subject nails packaged therein, Commerce effectively created a seventh exclusion to the Final Order, namely an exclusion of steel nails packaged with non-subject items in tool kits.
In so doing, Commerce ran afoul of the well-established prohibition against altering scope language ex post facto. See Ericsson, 60 F.3d at 782. If Commerce intended to exclude nails imported as components of mixed-media sets from the scope of the Final Order, the time to establish that exclusion was during the antidumping investigation. "It is the responsibility of the agency, not those who initiated the proceedings, to determine the scope of the final orders." Duferco, 296 F.3d at 1097. Commerce undertook this responsibility here, as it always does, with informed input from those most knowledgeable and with the greatest interest in the proceedings, namely industry members who manufacture and import the nails in question. Stanley's request regarding its nail gun sets, and the Petitioners' Scope Letter in response, put Commerce on notice that subject nails were likely to be imported with non-subject items, and that the Petitioners believed this fact irrelevant to whether those nails remained within the scope of the Final Order. Resolution of this issue could easily have been provided for one way or the other in the Final Order. Instead, Commerce issued a Final Order that encompasses a broad range of steel nails regardless of whether they are imported in mixed-media sets. This unambiguous scope may not be changed now by means of the Final Scope Ruling.
The Government and Target argue that the tool kits at issue should not be automatically encompassed within the Final Order's scope simply because the Final Order did not expressly exclude them. See Gov.'s Opp'n at 13 (citing Duferco, 296 F.3d at 1096); Target's Opp'n at 18 n.11 (citing Toys "R" Us v. United States, 32 CIT ___, ___, Slip Op. 08-79, 2008 WL 2764982 (July 16, 2008)(not published in the Federal Supplement)). This argument, however, states the matter backwards. The tool kits are important not because of what they are, but because of what they contain  subject steel nails. Importation of those nails provides the basis for this case; in fact, it was the reason Target sought a scope ruling to begin with. It is not surprising that household tool kits are outside the scope of an order related to steel nails. The nails themselves, however, are subject to the Final Order, and it is left only to determine whether the Final Order, or some other lawful source, provide a basis for excluding them because they are packaged in tool kits.
*1381 As already stated, the Final Order provides no such basis. While the Final Order's unambiguous inclusion of the nails would normally be the end of the Court's analysis, the role Commerce's prior scope rulings may have played in its decision should be reviewed. This scrutiny is warranted because it is unclear how the procedures described in those rulings operate in conjunction with the language of the final orders, and an issue exists regarding whether Commerce is authorized to use such procedures at all.

2. Prior Scope Rulings
As relied on by the parties during the scope inquiry, Commerce has previously considered scope ruling requests involving mixed-media items. The relevant rulings all involved similar circumstances: an item or set being imported included a subject good, but the antidumping order at issue was silent regarding coverage of the item or set. In response to these circumstances, Commerce has adopted two different tests utilizing two different sets of factors allowing it to determine the product under examination. The test used is normally outcome determinative as to whether Commerce ultimately finds coverage of the subject good.
In the scope rulings relied on by Target, Commerce focused its inquiry on the entire mixed-media item or set rather than the subject good alone and found no scope coverage. See Certain Lined Paper Products from the People's Republic of China  Davis Group of Companies Corp. Scope Ruling Request, (Feb. 21, 2008) (concluding that padfolios containing subject lined paper pads were outside the scope of the order) ("Davis Scope Ruling"); Final Scope Ruling  Antidumping Duty Order on Certain Lined Paper Products from the People's Republic of China, Request by Avenues in Leather, Inc., (May 8, 2007) (same); Final Scope Ruling  Antidumping Duty Order on Certain Cased Pencils from the People's Republic of China (PRC)  Request by Fiskars Brands, Inc., (June 3, 2005) (concluding that compasses containing subject pencils were outside the scope of the order) ("Fiskars Scope Ruling"); Final Scope Ruling  Antidumping Duty Order on Certain Cased Pencils from the People's Republic of China (PRC)  Request by Target Corporation, (Mar. 4, 2005) (concluding that art sets containing subject pencils and other non-subject art supplies were outside the scope of the order) ("Clip N' Color Scope Ruling").
In these scope rulings, Commerce considered the item or set as a whole after concluding that the subject good contained therein was "not a substantial component of the set," Clip N' Color Scope Ruling at 5, was "consumed" during use, Fiskars Scope Ruling at 6, or could be "replaced" with another, presumably non-subject, good. Davis Scope Ruling at 6. Notably, Commerce identified none of these factors (i.e., minor component, consumable, replaceable) in the language of the antidumping order at issue.
In the scope rulings relied on by Mid Continent Nail, Commerce decided to examine the subject good regardless of the other items with which it was packaged, and concluded that the subject good remained subject to the antidumping order. See Final Scope Ruling: Antidumping Duty Order on Certain Tissue Paper from the People's Republic of China, (Sept. 19, 2008) (concluding that tissue paper contained in a gift bag set was subject to the order) ("Walgreen Scope Ruling"); Final Scope Ruling on the Request by Texsport for Clarification of the Scope of the Antidumping Duty Order on Porcelain-on-Steel Cooking Ware from the People's Republic of China, (Aug. 8, 1990) (concluding that porcelain-on-steel cookware imported *1382 as part of a camping set was subject to the order) ("Texsport Scope Ruling").
In the Walgreen Scope Ruling, Commerce analyzed subject tissue paper contained in gift bags and concluded that the tissue paper was "not a component of a unique set but merely subject merchandise packaged with non-subject merchandise." Walgreen Scope Ruling at 11. Relying on the Texsport Scope Ruling, Commerce stated that it evaluated the subject tissue paper apart from the other items with which it was packaged because the items "could be used independently of one another and at different times." Id. Commerce also stated that "[b]ecause the tissue paper at issue included in these sets can be used independently, the question of whether or not the tissue paper is `significant' with regard to the other products in the gift bag sets . . . is irrelevant to the Department's analysis in this case." Id. at 11-12.
In this case, Commerce appears to have followed the rulings cited by Target. However, if Commerce had instead applied the Walgreen Scope Ruling approach, it is likely that the subject nails would have been examined and found within the Final Order's scope because they can be "used independently" of the other items in the tool kits and "at different times." In fact, the nails appear to better satisfy these conditions than did the tissue paper at issue in Walgreen.
Such inconsistency in agency procedure is not permitted. It is true that Commerce has not given a general definition or test for what constitutes a mixed-media set, and that Commerce must issue each scope ruling based upon the facts and circumstances of the specific case before it. See Walgreens, 620 F.3d at 1355. However, to the extent that Commerce develops a procedure for defining the particular product to be examined in scope proceedings, such procedure must remain consistent and any deviations must be explained. See SFK USA, Inc. v. United States, 630 F.3d 1365, 1373 (Fed.Cir.2011) ("When an agency changes its practice, it is obligated to provide an adequate explanation for the change.").
An additional problem exists when Commerce uses criteria other than the antidumping order to determine the particular product under examination in scope proceedings. Specifically, Commerce has cited no authority allowing it to consider factors other than the Final Order or the provisions of 19 C.F.R. § 351.225 when defining the particular product to be examined in scope inquiries. However, statutory authority is necessary when an agency takes action to administer a statutory schemes over which it has oversight. See Timken Co. v. United States, 354 F.3d 1334, 1341 (Fed.Cir.2004) (citing Chevron U.S.A., Inc. v. Natural Res. Def. Council, 467 U.S. 837, 842-43, 104 S.Ct. 2778, 81 L.Ed.2d 694 (1984)).
This much is clear: a party seeks a scope ruling in a mixed-media case because it is importing an item containing goods subject to an antidumping order. As stated above, it is Commerce, and not the party seeking the scope ruling, that decides where the scope inquiry should be focused. See Walgreen Co. of Deerfield, 620 F.3d at 1355. The factors to be utilized in making this decision are not expressly provided for in 19 C.F.R. § 351.225, but the question itself remains governed by the principle that in scope proceedings, Commerce may interpret its orders but is not at liberty to change them. See Ericsson GE Mobile Commc'ns, 60 F.3d at 782. Therefore, regardless of the test employed, examining mixed-media items or sets instead of the subject goods they contain when such an approach is not warranted by the antidumping order may not be in accord with the law. However, since the Final Scope Ruling provided no statutory, regulatory, or other legal basis *1383 for this practice, the Court concludes that remand on this issue is appropriate so that Commerce can identify not only a test it will employ consistently, but the legal justification for employing such a test at all.

CONCLUSION
The Court concludes that the Final Scope Ruling is unsupported by substantial evidence and otherwise not in accord with the law. Commerce failed to articulate the reasons it examined the tool kits instead of the nails contained therein. Commerce also gave inadequate consideration to the language of the Final Order and undertook an analysis under 19 C.F.R. § 351.225(k)(2) prematurely. Furthermore, to the extent Commerce relied on procedures set forth in its prior scope rulings in deciding to examine the tool kits rather than the nails contained therein, it failed to articulate the factors of the test it followed or the legal authorization for employing such a test.
In accordance with the above, this case is remanded to Commerce for further proceedings consistent with this opinion.
NOTES
[1]  Hereinafter all documents in the public record will be designated "PR" and all documents in the confidential record designated "CR."
[2]  This scope language is substantially similar to the scope language that was proposed in the antidumping petition. Final Scope Ruling at 5.
[3]  In relevant part, 19 C.F.R. § 351.225(k) provides as follows:

(k) . . . [I]n considering whether a particular product is included within the scope of an order . . ., the Secretary will take into account the following:
(1) The descriptions of the merchandise contained in the petition, the initial investigation, and the determinations of the Secretary (including prior scope determinations) and the Commission.
(2) When the above criteria are not dispositive, the Secretary will further consider:
(i) The physical characteristics of the product;
(ii) The expectations of the ultimate purchasers;
(iii) The ultimate use of the product;
(iv) The channels of trade in which the product is sold; and
(v) The manner in which the product is advertised and displayed.
19 C.F.R. § 351.225(k)(1)-(2) (2010). The (k)(2) factors are also known as the Diversified Products factors because prior to codification, they were recognized by this court in Diversified Products Corp. v. United States, 6 CIT 155, 162, 572 F.Supp. 883, 889 (1983).
[4]  In Certain Steel Nails from the People's Republic of China: Preliminary Determination of Sales at Less Than Fair Value and Partial Affirmative Determination of Critical Circumstances and Postponement of Final Determination, 73 Fed.Reg. 3928, 3929 n. 6 (Jan. 23, 2008), Commerce discussed Stanley's request, but noted only that it decided not to modify the Final Order's scope to exclude certain trademarked items. Commerce never addressed its decision not to amend the scope to clarify whether nails meeting the scope language's physical description remain subject even when packaged with non-subject merchandise.
[5]  Commerce's characterization of the particular products it examined varied throughout the Final Scope Ruling, e.g., "tool kits," id. at 7, "tool kits as a set containing both brass coated nails and other items," id. at 5, "nails as contained in the household tool kits." Id. However, it is clear from Commerce's analysis, and the fact that the nails on their own are subject to the Final Order, that upon deciding not to conduct an inquiry on the nails as advocated by Mid Continent Nail, Commerce conducted its inquiry on the tool kits as advocated by Target.
[6]  All further citations to the Tariff Act of 1930 are to the relevant provisions of Title 19 of the United States Code, 2006 edition.
[7]  It is worth noting that Commerce was not required to focus its inquiry on the tool kits simply because Target framed its Request in that manner. See Walgreen Co. of Deerfield v. United States, 620 F.3d 1350, 1355 (Fed.Cir. 2010) (noting that such a rule would allow importers to frame their scope ruling requests in order to eliminate dispositive use of the (k)(1) factors).
