Full opinion text
OPINION R. GUY COLE, JR., Circuit Judge. Following a notice-and-comment rule-making procedure, the Federal Communications Commission (“FCC,” “Commission,” or “the agency”) released an order (“the Order”) adopting rules interpreting and implementing section 621(a)(1) of the Communications Act of 1934 (“the Act”), 47 U.S.C. § 541(a)(1), which prohibits local franchising authorities from “unreasonably refus[ing] to award” competitive cable franchises. The FCC released the Order on March 5, 2007 on the basis of record evidence that the operation of the local franchising process was unreasonably impeding competitive entry into the cable television market. A summary of the Order was subsequently published in the Federal Register on March 21, 2007. Petitioners and intervenors, consisting primarily of various local franchising authorities (“LFAs”), their representative organizations, and the incumbent cable industry’s trade association, request us to reverse the FCC’s decision and declare the Order void in its entirety, asserting that the FCC lacks the requisite authority to promulgate the Order and, in the alternative, that the FCC’s interpretation is not entitled to deference and is arbitrary and capricious. For the following reasons, we find that the FCC acted well within its statutorily delineated authority in enacting the Order and that there exists sufficient record evidence to indicate that the FCC did not engage in arbitrary-and-capricious rulemaking activity. Accordingly, we DENY the petitions for review. I. BACKGROUND A. Factual Background Given the complexity of the regulatory regime at issue, we begin by tracing the historical evolution of cable regulation and the role of the FCC therein. The public at large first obtained access to cable television in the 1950s. See generally City of Dallas, Tex. v. FCC, 165 F.3d 341, 345-46 (5th Cir.1999). During this first decade in which cable television was publicly available, the FCC abstained from regulating in this arena because it believed it lacked the authority to do so under existing statutory provisions. Id. at 345. By the mid-1960s, however, cable television had proliferated to such a degree that the FCC determined that it must regulate cable franchises in order to carry out its statutory duty to oversee all forms of broadcasting on behalf of the public interest. Id. The Supreme Court subsequently affirmed the FCC’s regulatory authority over cable television, holding that the agency was authorized to issue rules that were “reasonably ancillary to the effective performance of the Commission’s various responsibilities for the regulation of television broadcasting.” United States v. Southwestern Cable Co., 392 U.S. 157, 178, 88 S.Ct. 1994, 20 L.Ed.2d 1001 (1968). Regulation of cable services did not fall entirely on the shoulders of the FCC, however. Municipalities, or LFAs, also exerted an interest in regulating the cable medium. See generally American Civil Liberties Union v. FCC, 823 F.2d 1554, 1558 (D.C.Cir.1987). Specifically, they retained discretion to decide whether to grant cable franchises to applicants in their communities. Id. at 1558. As part of this negotiation process, cable operators frequently agreed to perform various activities on behalf of the public interest in exchange for a franchise. Id. Given the overlapping jurisdiction of the FCC and the municipalities, in 1972 the agency issued a report to delineate the contours of its jurisdiction vis-a-vis the LFAs. Cable Television Report and Order, 36 F.C.C.2d 143, on reconsideration, 36 F.C.C.2d 326 (1972), aff'd sub. nom. American Civil Liberties Union v. FCC, 523 F.2d 1344 (9th Cir.1975). In this report, the agency carved out a system of “deliberately structured dualism.” Id. Within this binary regulatory regime, “state or local government issued franchises while the FCC exercised exclusive authority over all operational aspects of cable communication, including technical standards and signal carriage.” National Cable Television Ass’n v. FCC, 33 F.3d 66, 68-69 (D.C.Cir.1994) (internal quotations omitted). This was the state of the cable communications market until 1984. At this time, approximately twenty years following the FCC’s foray into the cable television market, Congress conveyed its input for the first time through passage of a legislative amendment to the Communications Act, entitled the Cable Communications Policy Act of 1984, Pub.L. No. 98-549, 98 Stat. 2779. The 1984 Act was a response to the “illdefined [sic] ... state of regulatory uncertainty” resulting from the overlapping authority of the FCC and municipalities. American Civil Liberties Union, 823 F.2d at 1559. Accordingly, the legislation enlarged the Communications Act by inserting Title VI provisions governing the operation of cable providers and franchises. The purpose of these provisions was to “establish[ ] a national policy that clari-fie[d] the current system of local, state and federal regulation of cable television” and to “continue[] reliance on the local franchising process as the primary means of cable television regulation, while defining and limiting the authority that a franchising authority may exercise through the franchise process.” ELR.Rep. No. 98-934U.S.Code Cong.& Admin.News 1984 at pp. 4655, 4661. Thus, the regulatory guidelines incorporated into Title VI aimed to “both ... reliev[e] the cable industry from unnecessary, burdensome regulation and ... ensur[e] that cable systems remain responsive to the needs of the public.” American Civil Liberties Union, 823 F.2d at 1559. In so doing, the amendments “balance[d] two conflicting goals: preserving] the critical role of municipal governments in the franchise process ... while affirming the FCC’s exclusive jurisdiction over cable service, and overall facilities which relate to such service.” City of New York v. FCC, 814 F.2d 720, 723 (D.C.Cir.1987) (internal quotations and citations omitted). As a result of the amendment, when an entity now chooses to enter the market and offer services as a “cable operator,” it must comply with the dictates of Title VI. Section 621 of Title VI- — the provision at issue in the instant case — enumerates various requirements cable operators must follow to acquire cable franchises. Specifically, subsection (b)(1) of Section 621, 47 U.S.C. § 541(b)(1), situates the securing of cable franchises as a mandatory precondition for providing cable services, and subsection (a)(1), 47 U.S.C. § 541(a)(1), authorizes LFAs to award these franchises. By delegating this task to LFAs, the 1984 Act effectively “preserve[d] the role of municipalities in cable regulation.” City of Dallas, Tex., 165 F.3d at 345. Subsequently, in 1992, Congress once again weighed in on the regulation of cable television and clarified the role of LFAs through enactment of the Cable Television Consumer Protection and Competition Act, Pub.L. No. 102-385, 106 Stat. 1460. Specifically, Congress revised section 621(a)(1) to codify restraints on the licensing activities of an LFA such that it may grant “1 or more franchises within its jurisdiction; except that a franchising authority may not grant an exclusive franchise and may not unreasonably refuse to award an additional competitive franchise.” (emphasis added). Through this amendment, Congress further endowed potential entrants with a judicial remedy by entitling them to commence an action in a federal or state court within 120 days after receiving a final, adverse decision from an LFA. It is the legitimacy and precise import of these restraints that give rise to the instant controversy. According to the legislative history, Congress enacted this amendment in part because the local franchising requirements provided most cable subscribers with “no opportunity to select between competing cable systems.” H.R. Conf. Rep. No. 102-862, at 55, U.S.Code Cong.& Admin.News 1992 at p. 1231. Therefore, the purpose of these constraints was to foster heightened competition in the cable market: Based on the evidence in the record taken as a whole, it is clear that there are benefits from competition between two cable systems. Thus, the Committee believes that local franchising authorities should be encouraged to award second franchises. Accordingly, [the 1992 Cable Act,] as reported, prohibits local franchising authorities from unreasonably refusing to grant second franchises. S. Rep. No. 102-92, at 13, U.S.Code Cong.& Admin.News 1992 at p. 1133. Overall then, the legislators adopted a revised version of section 621(a)(1) because they “believe[d] that exclusive franchises are directly contrary to federal policy ... which is intended to promote the development of competition.” H.R. Conf. Rep. No. 102-862, at 77 (1992). B. Procedural Background Over a decade following the passage of the 1992 amendments to the Communications Act, the FCC compiled data suggesting that competition had yet to materialize as a reality for the cable market. S.Rep. No. 102-92. To investigate the state of the cable market, on November 3, 2005, the FCC adopted a Notice of Proposed Rulemaking (“NPRM”) and subsequently released it on November 18, 2005. In the NPRM, the FCC invited comment on approaches to implementing Section 621(a)(1) of the Communications Act of 1934. Responding to charges from potential entrants into the cable marketplace that “the current operation of the local franchising process serves as a barrier to entry[,]” the FCC solicited comment on “whether the franchising process unreasonably impedes the achievement of the interrelated federal goals of enhanced cable competition and accelerated broadband deployment and, if so, how the Commission should act to address that problem.” Specifically, in issuing the NPRM, the FCC sought to determine whether LFAs “are carrying out legitimate policy objectives allowed by the [Communications] Act or are hindering the federal communications policy objectives of increased competition in the delivery of video programming and accelerated broadband deployment.” The FCC further called for comment on formulating a definition of “what constitutes an unreasonable refusal to award an additional competitive franchise under Section 621(a)(1).” In making initial headway toward a definition, the FCC tentatively concluded in the NPRM that “Section 621(a)(1) prohibits not only the ultimate refusal to award a competitive franchise, but also the establishment of procedures and other requirements that have the effect of unreasonably interfering with the ability of a would-be competitor to obtain a competitive franchise.” (JA 475.) In addition to soliciting comments on the ease of entry into the cable market, the FCC also tentatively concluded that it possesses legitimate authority to implement Section 621(a)(1) “to ensure that the local franchising process does not unreasonably interfere with the ability of any potential new entrant to provide video programming to consumers.” (JA 474.) After reviewing the “voluminous record” generated by the rulemaking proceeding, consisting of “comments filed by new entrants, incumbent cable operators, LFAs, consumer groups, and others[,]” the FCC ascertained the need for new rules to ensure that the local franchising process operated in a fully competitive fashion, free of barriers to entry. (JA 500.) Accordingly, on December 20, 2006, by a vote of three to two, the FCC adopted the Order at issue. The Order was released on March 5, 2007 and became final on March 21, 2007, when it was published in the Federal Register. (JA 491-599; 72 Fed. Reg. 13230 (2007).) Attached to the Order was the dissenting opinion of Commissioner Jonathan S. Adelstein. The thrust of Commissioner Adelstein’s dissent was that the Order “substitutes [the FCC’s] judgment as to what is reasonable — or unreasonable — for that of local officials — all in violation of the franchising framework established in the Communications Act.” (JA 586.) Notwithstanding Commissioner Adel-steiris dissent, as a threshold matter, the Order first established the FCC’s “broad rulemaking authority to implement the provisions of the Communications Act, including Title VI generally and Section 621(a)(1) in particular.” (JA 493.) The FCC derived support for its rulemaking authority from various statutory provisions, including 47 U.S.C. § 303(r), which empowers the agency to implement “such rules and regulations ..., not inconsistent with law, as may be necessary to carry out the provisions of th[e] [Communications] Act[,]” 47 U.S.C. § 201(b), which authorizes the FCC to “prescribe such rules and regulations as may be necessary in the public interest to carry out the provisions of this Act[,]” and 47 U.S.C. § 4(i), which states that the FCC “may perform any and all acts, make such rules and regulations, and issue such orders ... as may be necessary in the execution of its functions.” (JA 518.) The agency also justified its actions on the basis that “Congress specifically charged [it] with the administration of the Cable Act, including Section 621” and that “federal courts have consistently upheld ... [its] authority in this area.” (Id.) In response to comments from incumbent cable operators that the judicial review provisions of sections 621(a)(1) and 635 of the Communications Act invested the federal courts with exclusive jurisdiction to interpret and enforce section 621(a)(1), the FCC explained that the availability of judicial review did not in any way attenuate its rulemaking authority. (JA 518-19.) The agency insisted that the “mere existence of a judicial review provision in the Communications Act does not, by itself, strip the Commission of its otherwise undeniable rulemaking authority.” (JA 519.) “As a general matter,” the FCC continued, “the fact that Congress provides a mechanism for judicial review to remedy a violation of a statutory provision does not deprive an agency of the authority to issue rules interpreting the statutory provision.” (Id.) Upon establishing its broad rulemaking authority, the FCC then proceeded to address the merits of the most pressing problems it identified in the cable franchising process. Based on the factual record before it, the FCC found that “the current operation of the franchising process can constitute an unreasonable barrier to entry for potential cable competitors, and thus justifies Commission action.” (JA 500.) The agency opined that “absent Commission action, deployment of competitive video services by new cable entrants will continue to be unreasonably delayed or, at worst, derailed.” (Id.) To avoid such ends and to further the goals of reducing barriers to entry into the cable market and facilitating investment in broadband facilities, the Order codified five rules construing the meaning of “unreasonable” within section 621(a)(1). First, the FCC ruled that “an LFA’s failure to issue a decision on a competitive application within the time frames specified herein constitutes an unreasonable refusal to award a competitive franchise.” (JA 493.) The FCC accordingly delineated two applicable time frames: ninety days for applicants, such as telephone companies, with already existing authorizations for access to rights-of-way, and six months for all other competitive franchise applicants. As a means of enforcement, the FCC declared that if an LFA failed to issue a final decision within the requisite time frame, the applicant’s proposal would be deemed granted on an interim basis until the LFA delivered a final decision. Second, the FCC ruled that “an LFA’s refusal to grant a competitive franchise because of an applicant’s unwillingness to agree to unreasonable build-out mandates constitutes an unreasonable refusal to award a competitive franchise.” (JA 493.) While the agency characterized build-out requirements as “eminently sensible” under the prior regime, in which incumbent cable providers were granted community-wide monopolies, under the current, competitive regime, these requirements “make entry so expensive that the prospective ... provider withdraws its application and simply declines to serve any portion of the community.” (JA 532-33.) Given the entry-deterring effects of build-out requirements, the agency exercised its rulemaking authority to proscribe LFAs from conditioning franchises on these requirements. Third, the Order included a ruling regarding franchise fees. The FCC declared that “unless certain specified costs, fees, and other compensation required by LFAs are counted toward the statutory [five] percent cap on franchise fees, demanding them could result in an unreasonable refusal to award a competitive franchise.” (JA 493.) The Order went on to explain that “a cable operator is not required to pay franchise fees on revenues from non-cable services.” (JA 536.) Similarly, the FCC mandated that “any requests made by LFAs that are unrelated to the provision of cable services by a new competitive entrant are subject to the statutory [five] percent franchise fee cap.” (JA 539.) Fourth, the FCC ruled that while LFAs may seek assurances from prospective cable operators that they will provide public, educational, and governmental (“PEG”) access channel capacity, “LFAs may not make unreasonable demands of competitive applicants for PEG.” (JA 541.) As an example of such an unreasonable demand, the FCC stated that it would be “unreasonable for an LFA to impose on a new entrant more burdensome PEG carriage obligations than it has imposed upon the incumbent cable operator.” (JA 543.) In contrast, the agency approved a “pro rata cost sharing approach” in which a “new entrant agrees to share pro rata costs with the incumbent operator” as “per se reasonable.” (JA 544.) Lastly, the FCC clarified that “the LFA’s jurisdiction applies only to the provision of cable services over cable systems.” (JA 545.) Based on this limited jurisdiction, the Order characterizes as “unreasonable” an LFA’s refusal to issue a franchise based on issues related to non-cable services or facilities. (Id.) For example, the FCC explained that an “LFA may not use its video franchising authority to attempt to regulate a [local exchange carrier’s] entire network beyond the provision of cable services.” (Id.) Beyond codifying these five rules, the FCC’s Order also “preempt[ed] local laws, regulations, practices, and requirements to the extent that: (1) provisions in those laws, regulations, practices, and agreements conflict with the rules or guidance adopted in this Order; and (2) such provisions are not specifically authorized by state law.” (JA 546.) Despite its preemption of local laws and regulations, however, the Order declined to preempt state laws, state-level franchising decisions, or local franchising decisions “specifically authorized by state law.” (Id.) The FCC refrained from preemption of state regulations because it lacked “a sufficient record to evaluate whether and how such state laws may lead to unreasonable refusals to award additional competitive franchises.” (Id.) In conjunction with the Order, the FCC issued a Further Notice of Proposed Rule-making. This Notice underscored that since the Order implemented section 621(a)(1), its immediate applicability was only to applicants seeking “additional competitive franchises,” not to existing franchisees. (JA 535, 554). Accordingly, the FCC initiated a second round of rule-making, “seeking comment on how [its] findings in [its] Order should affect existing franchisees” and “on local consumer protection and customer service standards as applied to new entrants.” (JA 494, 554-58.) Following publication of the Order, on April 3, 2007, the Alliance for Community Media (“ACM”), the National Association of Counties (“NAC”), the National Association of Telecommunications Officers and Advisors (“NATOA”), the National League of Cities (“NLC”), the United States Conference of Mayors (“USCM”), and Alliance for Communications Democracy (“ACD”) (collectively, “petitioners”) timely filed petitions for review of the Order in courts of proper venue under 28 U.S.C. § 2343. ACM’s petition for review typifies the claims of petitioners in challenging the Order “on the grounds that it exceeds the FCC’s statutory authority, is arbitrary and capricious, an abuse of discretion, unsupported by substantial evidence, in violation of the United States Constitution ... and is otherwise contrary to law.” (JA 600-01.) On April 10, 2007, the Judicial Panel on Multidistrict Litigation exercised its authority under 28 U.S.C. § 2112(a) to consolidate the petitions for review of the Order and randomly designated this Court to hear the matter. Petitioners thereafter requested this Court to stay the Order’s applicability pending judicial review, but this Court denied that request on July 24, 2007. II. DISCUSSION A. The FCC’s Authority to Issue the Order At the outset, petitioners contest the FCC’s underlying authority to promulgate rules implementing section 621(a)(1) of the Communications Act. Petitioners maintain that the FCC exceeded the bounds of its authority when it adopted the Order because Congress never explicitly or implicitly delegated power to the FCC to interpret section 621(a)(1). In contrast, the FCC insists that it undoubtedly possesses the requisite authority to implement the Order and that petitioners’ argument “rest[s] on a fundamental misunderstanding of the statutory scheme.” (Respondent’s Br. 21.) In support of its jurisdictional argument, petitioners emphasize that nowhere in the plain language of section 621(a)(1) does any reference to the Commission appear. Turning to the text, section 621(a)(1) reads as follows: (a) Authority to award franchises; public rights-of-way and easements; equal access to service; time for provision of service; assurances (1) A franchising authority may award, in accordance with the provisions of this subchapter, 1 or more franchises within its jurisdiction; except that a franchising authority may not grant an exclusive franchise and may not unreasonably refuse to award an additional competitive franchise. Any applicant whose application for a second franchise has been denied by a final decision of the franchising authority may appeal such final decision pursuant to the provisions of section 555 of this title for failure to comply with this subsection. 47 U.S.C. § 541(a)(1) (emphasis added). Petitioners are thus correct in noting that, while the text expressly references franchising authorities, it is silent as to the agency’s role in the process of awarding cable franchises. Where petitioners’ argument falls short, however, is in equating the omission of the agency from section 621(a)(1) with an absence of rulemaking authority. In AT & T Corp. v. Iowa Utilities Board, 525 U.S. 366, 119 S.Ct. 721, 142 L.Ed.2d 835 (1999), the Supreme Court considered a challenge by state utility commissions and local exchange carriers to local competition rules issued by the FCC pursuant to the Telecommunications Act of 1996. In considering whether the FCC possessed the regulatory authority to interpret the provisions of the Telecommunications Act of 1996 at issue, the Court hinged its analysis on section 201(b), a 1938 amendment to the Communications Act of 1934. AT & T Corp., 525 U.S. at 377, 119 S.Ct. 721. Section 201(b) provides, in relevant part, that “[t]he Commission may prescribe such rules and regulations as may be necessary in the public interest to carry out the provisions of this Act.” 47 U.S.C. § 201(b). The Court reasoned that “[sjince Congress expressly directed that the 1996 Act, along with its local-competition provisions, be inserted into the Communications Act of 1934 ... the Commission’s rulemaking authority would seem to extend to implementation of the local competition provisions.” AT & T Corp., 525 U.S. at 377-78, 119 S.Ct. 721. In other words, AT & T Corp. espoused a plain reading of section 201(b): “We think that the grant in § 201(b) means what it says: The FCC has rulemaking authority to carry out the ‘provisions of this Act,’ which include §§ 251 and 252, added by the Telecommunications Act of 1996.” Id. at 378, 119 S.Ct. 721. We find that the logic of AT & T Corp. controls the disposition of the jurisdictional argument petitioners raise here. Just as Congress ratified the Telecommunications Act of 1996 as an amendment to be incorporated into the original Communications Act of 1934, Congress likewise passed the Cable Television Consumer Protection and Competition Act of 1992, Pub.L. No. 102-385, 106 Stat. 1460, which revised section 621(a)(1) to include the bar on unreasonable refusals to award additional franchises, as an amendment to the original Communications Act of 1934. Through this process of amendment, Congress incorporated section 621(a)(1) into the Communications Act of 1934, and the statutory language at issue here thus qualifies as a “provision! ] of this Act” within the meaning of section 201(b). Thus, because “the grant in § 201(b) means what it says[,]” we are bound by this plain meaning and thereby conclude that, pursuant to section 201(b), the FCC possesses clear jurisdictional authority to formulate rules and regulations interpreting the contours of section 621(a)(1). See AT & T Corp., 525 U.S. at 378, 119 S.Ct. 721. Locating jurisdictional support for the FCC’s rulemaking in section 201(b) further explains the absence of any reference to the Commission in the language of section 621(a)(1). Facing a similar argument regarding statutory silence with respect to an agency’s rulemaking authority, the Supreme Court underscored that there is an “obvious difference between a statutory requirement ... and a statutory authorization.” Alaska Dept. of Environmental Conservation v. E.P.A., 540 U.S. 461, 491, 124 S.Ct. 983, 157 L.Ed.2d 967 (2004) (emphasis in original). In the specific context of the Communications Act, the Court has observed that it is “not peculiar that the [congressionally] mandated regulations should be specifically referenced, whereas regulations permitted pursuant to the Commission’s § 201(b) authority are not.” AT & T Corp., 525 U.S. at 385, 119 S.Ct. 721. Standing alone then, the statutory silence in section 621(a)(1) regarding the agency’s rulemaking power does not divest the agency of its express authority to prescribe rules interpreting that provision. Cases from our sister circuits interpreting section 621 lend further support to our finding of the agency’s jurisdiction here. In City of Chicago v. FCC, 199 F.3d 424, 428 (7th Cir.1999), for example, the Seventh Circuit squarely addressed the issue of whether the “FCC was ... granted regulatory authority over 47 U.S.C. § 541, the statute setting out general franchise requirements.” In answering this question, the court explained that “the FCC is charged by Congress with administration of the Cable Act ... We are not convinced that for some reason the FCC has well-accepted authority under the Act but lacks authority to interpret § 541 and to determine what systems are exempt from franchising requirements.” City of Chicago, 199 F.3d at 428 (internal citations omitted). Likewise, in National Cable Television Ass’n v. FCC, 33 F.3d 66 (D.C.Cir.1994), the D.C. Circuit confronted the question of whether the FCC’s interpretation of the franchise requirements set forth in section 621(b)(1) was a reasonable construction of the statute. Although not addressing the jurisdictional question directly, the court concluded that the regulations at issue represented reasonable constructions of section 621(b)(1) and therefore denied the petitions for review. Id. at 75. Implicit in the court’s deference to the FCC’s interpretations was an acknowledgment that the agency possessed the underlying regulatory authority to promulgate rules construing section 621. Thus, our jurisdictional holding today reinforces the conclusions of our sister circuits. As a final jurisdictional challenge, petitioners focus their argument on the availability of judicial review under section 621(a)(1). Immediately after assigning LFAs the task of awarding franchises, the next sentence of section 621(a)(1), by cross-referencing section 635 of Title VI, identifies the courts as the forum for aggrieved cable operators to obtain relief. See 47 U.S.C. § 555(a)(1),(2) (“Any cable operator adversely affected by any final determination made by a franchising authority under section 541(a)(1) ... of this title may commence an action within 120 days after receiving notice of such determination, which may be brought in (1) the district court of the United States for any judicial district in which the cable system is located; or (2) in any state court of general jurisdiction having jurisdiction over the parties.”). In light of this judicial review provision, petitioners challenge the Order for “ignor[ing] this basic statutory structure ... [by] in effect, add[ing] a third clause to Section 635(a) that would allow local franchising matters under Section 621(a)(1) to be ruled upon by the FCC.” (Petitioner ACM’s Br. 18; see also Petitioner NCTA’s Br. 24-26; Petitioner Tampa’s Br. 16-17; Petitioner New Jersey’s Br. 16-17.) Petitioners contend that the FCC’s intervention in franchising decisions violates Congressional intent that the courts serve as the only other body with concurrent jurisdiction over section 621(a)(1). By issuing the Order, their argument goes, the FCC has impermissibly encroached on the exclusive role of the courts in providing redress to aggrieved cable operators. In effect, petitioners’ argument calls upon us to determine whether the judicial review provisions in the second part of section 621(a)(1) are exclusive and thereby override the FCC’s exertion of rulemaking authority. Our inquiry leads us to a negative answer: the availability of a judicial remedy for unreasonable denials of competitive franchise applications does not foreclose the agency’s rulemaking authority over section 621(a)(1). While the Order equips LFAs with guidance on reasonable versus unreasonable distribution of franchises, the courts ultimately retain their Congressionally-granted jurisdiction to hear appeals involving denials of competitive franchises. Although the courts may have to grant deference to the Order, this does not in any way impede the courts’ fact-finding or legal analysis during actual judicial proceedings. Our conclusion today that the FCC possesses jurisdiction over section 621(a)(1) coextensive with that of the courts is buttressed by the Supreme Court’s analogous decisions in AT & T Corp. and U.S. v. Haggar Apparel Co., 526 U.S. 380, 119 S.Ct. 1392, 143 L.Ed.2d 480 (1999). In the former ease, although the Communications Act specifically provides for judicial review of state commission decisions arbitrating interconnection disputes among telephone companies, 47 U.S.C. § 252(e)(6), the Supreme Court upheld the FCC’s authority to issue rules governing the states’ resolution of such disputes. AT & T Corp., 525 U.S. at 377-85, 119 S.Ct. 721. The Court reasoned that Congress’s “assignment ]” of the adjudicatory task to state commissions did not “logically preclude the [FCC]’s issuance of rules to guide the state-commission judgments.” Id. at 385, 119 S.Ct. 721. Likewise, in Haggar Apparel, a manufacturer of imported clothing brought an action to challenge regulations issued by the United States Customs Service through the notice-and-comment rulemak-ing process. 526 U.S. at 380, 119 S.Ct. 1392. Specifically, the company contested the applicable scope of the rules, arguing that they applied only to customs officers and not to the Court of International Trade in importers’ refund suits. Id. at 386-87, 119 S.Ct. 1392. The Court, however, rejected Haggar Apparel’s attempt to release the Court of International Trade from adherence to the rules and ultimately held that “[d]eference can be given to the regulations without impairing the authority of the [Court of International Trade] to make factual determinations, and to apply those determinations to the law, de novo.” Id. at 391, 119 S.Ct. 1392. Similarly, in the instant case, we believe that courts can grant deference to the Order while maintaining their Congressionally-granted authority to make factual determinations and provide relief to aggrieved cable operators. B. Chevron Analysis Because we find that the agency possesses the underlying authority to issue the Order, our subsequent task is to ascertain whether the contents of the Order merit our deference pursuant to Chevron USA v. Natural Resources Defense Council, 467 U.S. 837, 104 S.Ct. 2778, 81 L.Ed.2d 694 (1984). In Chevron, the Supreme Court observed that, pursuant to the principle of deference to administrative interpretations, “considerable weight should be accorded to an executive department’s construction of a statutory scheme it is entrusted to administer.” 467 U.S. at 844, 104 S.Ct. 2778. To determine whether such deference is warranted, the Chevron analysis, colloquially referred to as the “Chevron two-step,” requires the following inquiry: “the court [must] ask “whether the statute is silent or ambiguous with respect to the specific issue before it; if so, the question for the court [is] whether the agency’s answer is based on a permissible construction of the statute.” Singh v. Gonzales, 451 F.3d 400, 403-04 (6th Cir.2006) (citation and quotation marks omitted). Within this analytical framework, judicial deference to an agency’s construction of a statute is justified because the “statute’s ambiguity constitutes an implicit delegation from Congress to the agency to fill in the statutory gaps.” FDA v. Brown & Williamson Tobacco Corp., 529 U.S. 120, 159, 120 S.Ct. 1291, 146 L.Ed.2d 121 (2000). The Supreme Court has explained that “a very good indicator of delegation meriting Chevron treatment is express congressional authorizations to engage in the process of rulemaking ... that produces regulations or rulings for which deference is claimed.” United States v. Mead Corporation, 533 U.S. 218, 229, 121 S.Ct. 2164, 150 L.Ed.2d 292 (2001). Applying the dictates of Chevron, we find that the Order is entitled to our deference. At the outset, we note that, as reflected by the NPRM, the sixty-day comment period, and the ninety-day reply comment period, the FCC promulgated the Order through the formal channels of notice-and-comment rulemaking pursuant to section 553 of the APA. According to the Supreme Court’s pronouncement in Mead, the FCC’s conformance with notice- and-comment procedures serves as a “very good indicator of delegation meriting Chevron treatment.” 533 U.S. at 229, 121 S.Ct. 2164; see also, Estate of Gerson v. C.I.R., 507 F.3d 435, 438 (6th Cir.2007) (finding that a Treasury Regulation adopted by the IRS deserved deference because “the IRS regularly engages in notice and comment procedures for its general-authority regulations; these procedures foster fairness and deliberation.”); Cleveland Nat. Air Show, Inc. v. U.S. Dept. of Transp., 430 F.3d 757, 763 (6th Cir.2005) (noting that a “formal process is one signal that an agency deserves Chevron deference.”). Turning to the Chevron two-step analysis, we are of the view that the language at issue in section 621(a)(1) is indeed ambiguous, and that the FCC’s construal of the language in the Order amounts to a permissible construction of this language. 1. Chevron Step 1: Statutoi"y Ambiguity The initial question under step one of the Chevron framework is “whether Congress has directly spoken to the precise question at issue” by employing precise, unambiguous statutory language. Chevron, 467 U.S. at 842, 104 S.Ct. 2778. This first step is informed by the recognition that “[t]he judiciary is the final authority on issues of statutory construction and must reject administrative constructions which are contrary to clear congressional intent.” Id. at 843, n. 9, 104 S.Ct. 2778. When conducting the inquiry required by Chevron’s first step, “our primary goal is to effectuate legislative intent using traditional tools of statutory interpretation.” Estate of Gerson, 507 F.3d at 439. In harnessing these tools, we must construe statutory language “in pertinent context rather than in isolation.” Id. In the case at bar, the statutory phrase within section 621(a)(1) which emerges as a candidate for ambiguity is “unreasonably refuse to award an additional competitive franchise.” 47 U.S.C. § 541(a)(1) (emphasis added). Language is ambiguous when “to give th[e] phrase meaning requires a specific factual scenario that can give rise to two or more different meanings of the phrase.” Beck v. City of Cleveland, Ohio, 390 F.3d 912, 920 (6th Cir.2004). While we have not previously interpreted the phrase “unreasonably” under section 621(a)(1), in the context of other provisions of the Communications Act, courts called upon to ascertain the ambiguity of descriptors such as “reasonable” and “unreasonable” have found these words subject to multiple constructions. In Orloff v. FCC, 352 F.3d 415 (D.C.Cir.2003), cert. denied, 542 U.S. 937, 124 S.Ct. 2907, 159 L.Ed.2d 813 (2004), for example, the petitioner filed a petition for review of an FCC adjudication which found that Verizon’s practice of granting sales concessions to certain prospective customers did not rise to “unjust or unreasonable” discrimination in violation of 47 U.S.C. § 202(a). In conducting the requisite Chevron analysis, that court stated that “the generality of these terms — unjust, unreasonable — opens a rather large area for the free play of agency discretion, limited of course by familiar arbitrary and capricious standard in the Administrative Procedure Act.” Orloff, 352 F.3d at 420 (internal quotations omitted). Similarly, confronting section 201(b) of the Communications Act, which mandates that any interstate communications charge be “just and reasonable” and characterizes as unlawful any communications charge that is “unjust or unreasonable,” the panel majority explained that “[bjecause ‘just,’ ‘unjust,’ ‘reasonable,’ and ‘unreasonable’ are ambiguous statutory terms, this court owes substantial deference to the interpretation the Commission accords them.” Capital Network System, Inc. v. FCC, 28 F.3d 201, 204 (D.C.Cir.1994). Of course, the detection of inherent ambiguity in words such as “reasonable” and “unreasonable” by other courts in other sections of the Communications Act does not terminate the analysis here, because such observations are divorced from the specific context of Title VI. See Bower v. Federal Exp. Corp., 96 F.3d 200, 208-09 (6th Cir.1996) (“[E]ven facially ambiguous provisions can have their meanings clarified and rendered unambiguous by reference to the statute’s structure or to other unambiguous terms in the statute.”). As petitioners argue, while “unreasonable” may generally engender ambiguity and multiplicity of meaning, it is not inconceivable that its particular usage within section 621(a)(1) is perfectly clear. Thus, we must probe the structure and history surrounding the enactment of section 621(a)(1) to establish whether the use of “unreasonable” in this case fosters ambiguity. Immediately following section 621(a)(l)’s limitation on unreasonable refusals to award additional franchises, the provision cross-references section 635 and thereby charges the courts with the task of determining whether there has been a “failure to comply with this subsection.” 47 U.S.C. § 541(a)(1). Congress’s provision of judicial review as a means to monitor a given LFA’s compliance with section 621(a)(1) suggests that it is not instantaneously apparent whether a refusal to grant a prospective franchisee’s application is necessarily reasonable or not. The legislative decision to delegate to jurists the task of construing and enforcing section 621(a)(l)’s insistence on reasonableness suggests that the statutory phrase at issue is capable of multiple meanings. To choose between these several meanings, courts will have to engage in fact-finding and uncover the particularities of the case at hand. Thus, to give meaning to an “unreasonable denial” will depend upon “a specific factual scenario.” Beck, 390 F.3d at 920. Coupled with case law finding the term “reasonable” generally to engender ambiguity, the fact-sensitive nature of the reasonableness inquiry in the instant context indicates that section 621(a)(l)’s usage of “unreasonably” is ambiguous under Chevron’s first step. Accordingly, our next task is to determine whether the FCC’s explication of this statutory ambiguity is reasonable. 2. Chevron Step 2: Reasonableness of the Order At this juncture, we must decide whether the FCC’s Order constitutes a permissible construction of the pivotal statutory phrase, “unreasonably refuse to award,” within section 621(a)(1). In answering this question, we “need not conclude that the agency construction was the only one it permissibly could have adopted to uphold the construction, or even the reading [we] would have reached if the question initially had arisen in a judicial proceeding.” Battle Creek Health System v. Leavitt, 498 F.3d 401, 408-09 (6th Cir.2007) (internal quotations omitted). A review of the legislative history as well the language of the provision at issue is the chief method by which we approach the second step of Chevron. Difford v. Secretary of Health and Human Services, 910 F.2d 1316, 1318 (6th Cir.1990). Because the Order encompasses four different rules specifying the meaning of “unreasonably refuse” within section 621(a)(1), we proceed by assessing the reasonableness of each rule in its own right. a. Rule 1: Timing Requirements for Awarding New Franchises The first rule contained in the Order concerns the time period within which LFAs must address franchise applications to satisfy section 621(a)(l)’s requirement of reasonableness. The FCC selected 90 days and six months as the time frames within which LFAs must respectively rule on the proposals of applicants with existing access to rights-of-way and wholly new applicants. The FCC further prescribed temporary interim franchises as a remedy for an LFA’s failure to comply with the applicable time frame. Urging this Court to reject the timing requirement as an impermissible construction of the statute, petitioners characterize this portion of the Order as “creating an arbitrary shot-clock for new franchise applications” and “spawning unilaterally-imposed interim franchises permitting unauthorized access to public and private property and denying community needs and interests.” (Petitioner ACM’s Br. 28-29.) The FCC, on the other hand, insists that the time frames are a lawful and reasonable regulatory response to “unreasonable delays in the franchising process.” (Respondent’s Br. 39-40.) To determine whether we should defer to the time limits as a permissible construction of the Act, it is instructive to examine how durational requirements surface in other portions of Title VI. In several other sections of the Act addressing cable franchises, Congress expressly incorporated timing requirements into the statutory language. Section 617, for example, relates to the sale of cable systems and states that, if the issuance of a franchise requires that an LFA approve the sale or transfer of a cable system, the LFA must act within 120 days. 47 U.S.C. § 537. Likewise, section 625 mandates that modifications of franchise terms occur within 120 days of the request. 47 U.S.C. § 545. While express durational requirements govern these aspects of the franchising process, the statutory scheme is silent with respect to time limits governing the issuance of new franchises under section 621(a)(1). In light of this silence, petitioners urge us to adopt the canon of construction expressio unius est exclusio alteri-us — explicit direction for something in one provision, and its absence in a parallel provision, implies an intent to negate it in the second. That is, according to petitioners, if Congress had intended that LFAs act within a certain time period in awarding new franchises, it seems logical to assume that it would have followed the course of these other sections by integrating express durational requirements into the statutory language of section 621(a)(1). Thus, under petitioners’ view, even if the language of section 621(a)(1) is ambiguous, the agency has formulated an impermissible construction of the statute by reading into the text durational requirements that contravene Congress’s intentional decision to forego such requirements. See Whitman v. American Trucking Ass’n., 531 U.S. 457, 467, 121 S.Ct. 903, 149 L.Ed.2d 1 (2001) (refusing to “find implicit in ambiguous sections of the [Clean Air Act] an authorization to consider costs that has elsewhere, and so often, been expressly granted.”); General Motors Corp. v. United States, 496 U.S. 530, 538, 110 S.Ct. 2528, 110 L.Ed.2d 480 (1990) (explaining that “[s]inee the statutory language does not expressly impose a 4-month deadline and Congress expressly included other deadlines in the statute, it seems likely that Congress acted intentionally in omitting the 4-month deadline in § 1 10(a)(3)(A).”); Russello v. United States, 464 U.S. 16, 23, 104 S.Ct. 296, 78 L.Ed.2d 17 (1983) (“[W]here Congress includes particular language in one section of a statute but omits it in another section of the same Act, it is generally presumed that Congress acts intentionally and purposely in the disparate inclusion or exclusion.”). While petitioners are correct in identifying the expressio tool as one canon of statutory interpretation, their analysis fails to recognize that the utility of the expres-sio canon in the context of the Chevron inquiry has been questioned. In Cheney R.R. Co. v. I.C.C., 902 F.2d 66, 69 (D.C.Cir.1990), for example, the D.C. Circuit explained that, under Chevron, Congressional silence is to be construed as creating a presumption of a gap-filling delegation to agencies. Against this presumption, the expressio canon emerges as “an especially feeble helper in an administrative setting, where Congress is presumed to have left to reasonable agency discretion questions that it has not directly resolved.” Cheney R.R. Co., 902 F.2d at 69. Likewise, in General Motors Corp. v. NHTSA, 898 F.2d 165, 170 (D.C.Cir.1990), the D.C. Circuit held that, where a statute includes an “express deadline” for one category of decisions but not another, the absence of a statutory deadline for the latter category “could mean either that no deadline was contemplated by Congress, or that Congress left the choice to [the agency] whether or not to impose a deadline.” We find the reasoning in General Motors Corp. to be persuasive. That is, the absence of a statutory deadline in section 621(a)(1) leads us to conclude that Congress authorized, but did not require, the FCC to impose time limits on the issuance of new franchises. Moreover, the nature of the franchising process counsels in favor the reasonableness of the time limits the FCC selected. We have previously noted that administrative lines “need not be drawn with mathematical precision.” Kirk v. Secretary of Health & Human Serv., 667 F.2d 524, 532 (6th Cir.1981). Courts are “generally unwilling to review line-drawing performed by the Commission unless a petitioner can demonstrate that lines drawn ... are patently unreasonable, having no relationship to the underlying regulatory problem.” Covad Comm. Co. v. FCC, 450 F.3d 528, 541 (D.C.Cir.2006) (internal quotations omitted). We conclude that petitioners have failed to demonstrate the patent unreasonableness of the durational requirements. First, the reasons mobilizing the FCC to promulgate these time limits appear more than reasonable. Due to protracted franchise negotiations, the agency found that prospective entrants were abandoning attempts to join the cable market and acceding to otherwise unacceptable franchise terms simply to expedite the process. The Commission thus prescribed the time frames as a way to remedy the “excessive delays result[ing] in unreasonable refusals to award competitive franchises,” and reverse the factors “deprivfing] consumers of competitive video services” and “hamper [ing] broadband deployment.” (Id.) In furtherance of these ends, the FCC reasonably found that six months would provide LFAs with “a reasonable amount of time to negotiate with an entity that is not already authorized to occupy” rights-of-way. (JA 527.) This determination was predicated on “substantial [record] evidence that six months provides LFAs sufficient time to review an applicant’s proposal, negotiate acceptable terms, and award or deny a competitive franchise.” (Id.) Similarly, for companies with existing access to rights-of-way, the FCC reasonably found that their cable franchise applications should take less time to review and process because “an LFA need not devote substantial attention to issues of rights-of-way management.” (JA 525.) Specifically, the agency explained that since incumbent cable operators already demonstrated their “legal, technical, and financial fitness” to use rights-of-way to provide service, “an LFA need not spend a significant amount of time considering the fitness of such applicants to access public rights-of-way.” (JA 526.) That 90 days represents a reasonable time frame for incumbent providers is underscored by the fact that numerous state statutes require decisions on cable franchise applications in fewer than 90 days. (JA 499.) Accordingly, we conclude that the first rule included in the Order represents a permissible construction of the statute. b. Rule 2: Limitations on Build-Out Requirements The second rule contained in the Order places limits on the use of build-out requirements as a franchise term. Specifically, the Commission explained that “an LFA’s refusal to grant a competitive franchise because of an applicant’s unwillingness to agree to unreasonable build-out mandates constitutes an unreasonable refusal to award a competitive franchise.” (JA 493.) The Order further stipulates types of mandates that would qualify as unreasonable, such as requiring an operator to serve everyone in a given area as a precondition for providing service, requiring incumbent operators to “build out beyond the footprint of their existing facilities before they have even begun providing service,” and placing more stringent service requirements on new entrants than those facing incumbent operators. (JA 533.) In contrast, the agency described as reasonable an LFA’s consideration of “benchmarks requiring the new entrant to increase its build-out after a reasonable period of time had passed after initiating service and taking into account its market success.” (Id.) In arguing for the unreasonableness of this second rule, petitioners assert that the agency has effectively “amend[ed] the will of Congress by adding exceptions to a statute that do not otherwise exist.” (Petitioner ACM’s Br. 33; see also Petitioner Tampa’s Br. 43; Petitioner New York City’s Br. 7). That is, petitioners claim that “[sjeveral of the scenarios identified by the FCC as examples of ‘unreasonable build-out mandates’ involve issues that have nothing to do with the one and only condition placed on an LFA by Congress— namely, that an LFA must allow a reasonable period of time for build-out.” (Petitioner ACM’s Br. 34.) The agency, in turn, retorts that this second rule is both lawful and reasonable because it sensibly responds to the state of the record evidence. Based on the its extensive fact-finding, the FCC discovered that commanding prospective cable entrants to expand rapidly their networks “greatly hinder[s] the deployment of new video and broadband services.” (Respondent’s Br. 33; JA 506.) Beyond the entry-deterring effects of build-out requirements, the agency maintains that its limitations on build-out mandates are “in effect timing restrictions” that accordingly fall well within Congress’s requirement that LFAs provide a reasonable period of time for build-out. (Respondent’s Br. 55.) Despite their differing interpretations of the provision, petitioners and respondent correctly identify section 621(a)(4)(A) of the Act as the appropriate starting point for establishing the reasonableness of the Order’s second rule. Under this section, the only express constraint on an LFA’s ability to impose build-out requirements is that it “shall allow the applicant’s cable system a reasonable period of time to become capable of providing cable service to all households in the franchise area.” 47 U.S.C. § 541(a)(4)(A). The question before us then is whether the FCC’s restrictions on build-out requirements represent a reasonable construction of section 621(a)(4)(A). At the most fundamental level, petitioners and respondent are enmeshed in a quarrel over whether section 621(a)(4)(A) confers on LFAs the right to impose build-out requirements (as petitioners would have it) or amounts to a limitation on the authority of LFAs to secure build-out requirements through franchise negotiations (as respondent would have it). In ascertaining the reasonableness of this second rule under Chevron, the legislative history of section 621(a)(4)(A) can help to illuminate whether the statutory text is better characterized as a rights-conferring or an authority-limiting provision. When integrating section 621(a)(4)(A) into the Act through the 1984 Amendments, Congress enacted the current version of the statute from which the following language was excised: an LFA’s “refusal to award a franchise shall not be unreasonable if, for example, such refusal is on the ground ... of inadequate assurance that the cable operator will, within a reasonable period of time, provide universal service throughout the entire franchise area.” ELR.Rep. No. 102-628 at 9 (1992). That is, Congress explicitly considered and rejected the preceding language, which would have situated all build-out requirements as presumptively reasonable. Under this discarded version, the key phrase “shall not be unreasonable” indicates that LFAs would have exercised the affirmative right to impose build-out requirements on prospective entrants. In contrast, under the existing version of section 621(a)(4)(A), the statutory language fixes a durational requirement on LFAs when attaching build-out mandates to the terms of a franchise. The language, however, does not establish a presumption of reasonableness underlying all build-out requirements. That is, it is quite possible for an LFA to furnish a cable entrant with “a reasonable period of time to become cable of providing cable service to all households in the franchise area” yet still act unreasonably overall in imposing the build-out requirement on the entrant in the first place. Thus, in light of Congress’s patent consideration and rejection of statutory language that would have created a presumption of reasonableness surrounding build-out requirements, we find the FCC to have the better argument. Accordingly, section 621(a)(4)(A) is more aptly designated as a limitation on the authority of LFAs, rather than an affirmative bestowal of rights. The FCC’s subsequent explication of this limitation on build-out requirements, in the context of section 621(a)(l)’s requirement of reasonableness, thus appears to us a permissible construction of the Act, which warrants judicial deference under Chevron. c. Rule 3: Franchise Fees As part of its third rule addressing franchise fees, the Order construes the scope of the statutory five percent cap on fees located under section 622(b) of the Act. 47 U.S.C. § 542(b). This cap prohibits an LFA from charging a franchise fee in excess of five percent of a cable operator’s revenues from the provision of cable services. Id. Excluded from the definition of “franchise fee” and thereby from the five percent cap, however, are “requirements or charges incidental to the awarding or enforcing of the franchise, including payments for bonds, security funds, letters of credit, insurance, indemnification, penalties, or liquidated damages.” 47 U.S.C. § 542(g)(2)(D). Interpreting sections 622(b) and 622(g)(2)(D) in light of section 621(a)(l)’s reasonableness requirement, the Order enumerates the non-incidental charges that must fall within the purview of the statutory cap, including attorneys’ and consultants’ fees, “application or processing fees that exceed the reasonable cost of processing the application, acceptance fees, free or discounted services provided to an LFA, any requirement to lease or purchase equipment from an LFA at prices higher than market value, and in-kind payments.” (JA 539.) Likewise, “any requests made by LFAs that are unrelated to the provision of cable services by a new competitive entrant are subject to the statutory 5 percent franchise fee cap.” (JA 539.) The Order further insists that “a cable operator is not required to pay franchise fees on revenues from non-cable services.” (JA 536.) Asserting the unreasonableness of the Commission’s fee regulations, petitioners contend that the FCC’s interpretation of “incidental to” in section 622(g)(2)(D) violates the plain meaning of “incidental”, which is defined as “happening or likely to happen in an unplanned or subordinate conjunction with something else” or “incurred casually and in addition to the regular or main amount.” (Petitioner Fairfax County’s Br. 53.) In other words, petitioners contest the FCC’s per se listing of fees that count as non-incidental because such an approach contravenes the “statutory test [which] is whether an item is related to the awarding or enforcing of the franchise.” (Id) Rather than prioritizing relatedness to the awarding of a franchise, petitioners insist that the FCC’s list prioritizes the substantiality of the charges. They point to application fees and expenses incurred in review of an application as examples of charges that, regardless of their size or relation to market value, undoubtedly arise in connection with the award of a franchise. By confounding “incidental to” with “substantial,” petitioners urge this Court to reject the FCC’s rules on franchise fees as unreasonable. The FCC, in contrast, supports its position in the Order by marshaling case law from three district court opinions, Time Warner Entertainment v. Briggs, 1993 WL 23710 (D. Mass. Jan. 14, 1993), Birmingham Cable Comm. v. City of Birmingham, 1989 WL 253850 (N.D.Ala.1989), and Robin Cable Sys. v. City of Sierra Vista, 842 F.Supp. 380 (D.Ariz.1993). In Time Warner Entertainment, the court found that reimbursements for attorney’s and consultant’s fees imposed during a franchise award constituted “franchise fees” within the meaning of 47 U.S.C. § 542 and were thus subject to the statutory cap. 1993 WL 23710 at *6. The court in Birmingham Cable, addressing the phrase “incidental to,” held that “it would be an aberrant construction ... to conclude that the phrase embraces consultant fees incurred solely by the City.” 1989 WL 253850 at * 1, n. 2. And in Robin Cable Systems, the court explained that exceptions to the franchise fee cap are to be “narrowly tailored.” 842 F.Supp. at 381. Taken together, the FCC asserts that these three decisions further cast its interpretation as reasonable. Considering the foregoing, we grant Chevron deference to the FCC’s rules regarding fees because they qualify as reasonable constructions of sections 622(b) and 622(g)(2)(D). In circumscribing the boundaries of our role under the Chevron doctrine, we have emphasized that we “need not conclude that the agency construction was the only one it permissibly could have adopted ... or even the reading [we] would have reached if the question initially had arisen in a judicial proceeding.” Battle Creek Health System, 498 F.3d at 408-09 (internal quotations omitted). Thus, the fact that “incidental to” lends itself to multiple readings — the one highlighted by petitioners and the one highlighted by the agency — is alone insuffic