Opinion for the court filed by Circuit Judge HENDERSON.
California Metro Mobile Communications, Inc. (CMMC) appeals the Federal Communications Commission’s (Commission’s) order denying review of the decision of its Public Safety and Private Wireless Division to modify CMMC’s trunked radio station by removing one frequency. CMMC first contends that the Commission lacks authority under the Communications Act of 1934 (Communications Act or Act), 47 U.S.C. §§ 151 et seq., and the implementing regulations to modify CMMC’s license. Second, CMMC maintains that, even if the Commission has authority to modify its license, the decision to do so violates the Administrative Procedure Act (APA), 5 U.S.C. § 706(2)(A). We reject CMMC’s claims as explained below and, accordingly, affirm the Commission’s order.
I.
CMMC, a provider of mobile radio equipment and two-way radio service, applied to the Commission for a license to operate a trunked 1 radio station on Very High Frequency (VHF) channels in the Industrial/Business radio pool of the Private Land Mobile Radio (PLMR) services in Twin Creeks, California. The Personal Communications Industry Association (PCIA), an organization certified by the FCC to coordinate frequencies, submitted CMMC’s application to the Commission’s Licensing and Technical Analysis Branch (Branch) of the Public Safety and Private Wireless Division (Division) of the Wireless Telecommunications Bureau and recommended appropriate frequencies for operation of CMMC’s proposed station. On September 8, 1999 the Branch granted CMMC a license to operate a trunked radio station under the call sign WPOY920 on five channels, including frequency 153.6125 MHz.
On September 19, 2000 Pacific Gas & Electric (PG&E) petitioned
2
the Commis
Responding to PG&E’s petition, the Branch sent a letter to the PCIA on February 15, 2001 asking it to demonstrate that the frequency coordination it performed for CMMC’s application complied with Commission rules and, if it in fact failed to do so, to submit a proposal to remedy the defect. On March 12, 2001 the PCIA responded, stating that the frequency coordination it did for CMMC’s application had in fact failed to take into account licenses held by PG&E and proposing that the Commission “correct” CMMC’s license “by removing frequency 153.6125.” JA 9.
On August 14, 2001 the Division denied PG&E’s petition but, on its own motion, initiated a proceeding to modify CMMC’s license by deleting frequency 153.6125 MHz.
Pacific Gas & Elec. Co., Petition to Revoke Grant of License for California Metro Mobile Communications for Industrial/Business Private Land Mobile Radio Station, WPOY920, Twin Creeks, California & California Metro Mobile Communications, Licensee of Trunked Industrial/Business Pool Station WPOY920, Twin Creeks, California,
Memorandum Opinion & Order, 16 FCC Red 15419 (released Aug. 17, 2001). The Division first addressed CMMC’s contention that the Commission lacked authority to entertain PG&E’s petition because it was in effect an untimely petition for reconsideration under section 405 of the Communications Act, 47 U.S.C. § 405.
3
The Commission rejected CMMC’s contention, explaining that PG&E’s request “is most properly characterized as an informal request for Commission action under [s]ection 1.41 of the Commission’s [r]ules.”
4
On December 27, 2001 the Division denied CMMC’s petition for reconsideration and modified CMMC’s license by deleting frequency 153.6125 MHz.
California Metro Mobile Communications, Inc., Modification of Industrial/Business Pool Trunked Station WPOY920 Frequency 153.1625 MHz,
Memorandum Opinion & Order & Order of Modification,
Finding CMMC’s procedural arguments to be “without merit,” the Division rejected them. 17 FCC Red at 113-14. The Division first reasserted that, in proposing to modify CMMC’s license, it did not purport to act under the authority of 47 C.F.R. § 1.113 but instead pursuant to section 316 of the Act and 47 C.F.R. § 1.87(a).
Id.
at 114. The Division further explained that, while CMMC correctly noted that, section 405 of the Act requires petitions for reconsideration to be filed within 30 days following public notice of the action the Commission is asked to reconsider, the Division proposed to modify CMMC’s license on its own motion.
Id.
Turning to the proposed modification itself, the Division explained that CMMC had waived its right to protest the modification by failing to object to it on the merits within the prescribed 30-day period.
Id.
Finding that the modification
On October 29, 2002 the Commission denied CMMC’s application for review.
License of California Metro Mobile Communications, Inc., Modification of Industrial/Business Pool Trunked Station WPOY920; Frequency 153.6125,
Memorandum Opinion & Order,
The Commission also distinguished an earlier FCC order CMMC relied on. Id. The Commission explained that its San Mateo 8 decision differed because it dealt with the Branch’s authority to correct clerical errors after the period for sua sponte action had run. Id. By contrast, the Commission explained, “[njothing” in that decision touched on the subject of CMMC’s case: the Commission’s ability to modify a license post-grant under section 316. Id. The Commission further stated that, “[ajlthough the Division relied on a faulty coordination in granting the frequency at issue to CMMC, it did intend at the time' to grant that particular frequency, and, thus, its grant was not a ministerial or clerical error.” Id.
In addition, the Commission rejected CMMC’s claim that the Commission lacked authority to modify its license because the sole basis for the modification was PG&E’s petition for revocation. Id. The Commission explained that the Division denied PG&E’s petition for revocation and acted on its own motion to modify CMMC’s license under section 316. Id. The Commission further noted that deleting a single frequency from CMMC’s trunked station “was not tantamount to a revocation of [its] license.” Id.
Finally, the Commission addressed CMMC’s protest (which the Division deemed waived because it never received the protest).
Id.
at 22976-78. The Commission rejected CMMC’s argument that the public interest would not be served by modifying a license based on
potential
interference only, observing that, under its rules, “ ‘objectionable interference will be considered to exist’ when the interference contour of a proposed trunked station would intersect the service contour of an
CMMC now appeals the Commission’s order pursuant to 47 U.S.C. § 402(b)(5) and 28 U.S.C. § 2342(1).
II.
Our review of the Commission’s action is guided by familiar administrative law standards. We defer to the'Commission’s interpretation of the Communications Act so long as the Congress has not unambiguously forbidden it and it is otherwise permissible.
Chevron U.S.A., Inc. v. Natural Res. Def. Council, Inc.,
CMMC initially claims, as it did below, that neither section 405 nor section 316 authorized the Commission to modify .its license. We need not be detained long by CMMC’s argument that PG&E’s petition for revocation was an untimely petition for reconsideration under section 405 of the Act (and sections 1.106 and 1.113 of the rules). PG&E’s petition was filed approximately one year after the time for
CMMC argues, however, that the Commission’s decision in
San Mateo I,
CMMC’s more substantial claim is that the Commission lacked authority to modify its license under section 316 of the Act and section 1.87 of its rules. The gravamen of CMMC’s claim is that the Commission cannot bypass the time limit established in section 405 by relying on section 316 because, in its view, the latter section permits the Commission to modify a license based only on changed circumstances following grant of the license. According to CMMC, .because a licensee is entitled to “administrative finality,” section 316 authorizes the Commission simply to address “changed circumstances following the initial license grant” — not to “revisit initial grants of licenses after the statutory [s]ection 405 period has elapsed.” Appellant’s Br. at 13. The Commission rejected this contention and so do we.
Under step one of
Chevron,
In its order the Commission asserted that section 316 “contains no limitation on the time frame within which [it] may act to modify a license” and that its action under the section “is not subject to the limitations on revocation, modification or reconsideration imposed by [s]ection 405.”
California Metro Mobile Order,
In addition, CMMC maintains that, even if the Commission is authorized to modify its license under section 316, the Commission acted arbitrarily and capriciously in doing so. CMMC contends that the Commission modified its license in the absence of actual interference. Moreover, CMMC contends, the Commission failed to consider a less “draconian” remedy, its good faith reliance on the PCIA’s frequency coordination, its interest in “administrative finality” and the costs resulting from the modification, including lost customers, disruption of service and the station’s diminished capacity. Appellant’s Br. at 15-18.
We think that the Commission’s modification of CMMC’s license serves the public interest. The Commission expressly rejected CMMC’s claim that modification required
actual
interference with PG&E’s operations, explaining that the modification was needed to cure an ongoing violation.
California Metro Mobile Order,
* * *
For the foregoing reasons, we affirm the Commission’s order modifying CMMC’s license by deleting frequency 153.6125 MHz therefrom.
So ordered.
Notes
. The process of "trunking” increases efficiency in spectrum use by "giving a single transmitting station simultaneous access to multiple channels so that it can systematically scan all lines until it finds an open channel on which to place a waiting call. This pooling enables expeditious handling of many more calls than is possible if each call had to be completed, if at all, only through one preassigned channel.”
Telocator Network of Am. v. FCC,
. PG&E's letter, which it styled a "Petition for Revocation,” was filed under section 1.91 of the Commission rules, which, inter alia, provides that, if it appears that a license should be revoked, "the Commission will issue an order directing the person to show cause why an order of revocation ... should not be issued.” 47 C.F.R. § 1.91(a).
. Section 405 provides in part: “After an order, decision, report, or action has been made or taken in any proceeding by the Commission, or by any designated authority within the Commission pursuant to a delegation under section 155(c)(1) of this title, any party thereto, or any other person aggrieved or whose interests are adversely affected thereby, may petition for reconsideration only to the authority making or taking the order, decision, report, or action.” 47 U.S.C. § 405(a). The petition must "be filed within thirty days from the date upon which public notice is given of the order, decision, report, or action complained of.” Id.
. Section 1.41 provides: "Except where formal procedures are required under the provisions of this chapter, requests for action may be submitted informally.” 47 C.F.R. § 1.41.
.Section 316 provides in part: "Any station license ... may be modified by the Commission either for a limited time or for the duration of the term thereof, if in the judgment of the Commission such action will promote the public interest, convenience, and necessity, or the provisions of this chapter or of any treaty ratified by the United States will be more fully complied with.” 47 U.S.C. § 316(a)(1).
. Section 1.106 requires that a petition for reconsideration "be filed within 30 days from the date of public notice of the final Commission action.” 47 C.F.R. § 1.106(f).
. Section 1.113 provides that "[w]ithin 30 days after public notice has been given of any action taken pursuant to delegated authority, the person, panel, or board taking the action may modify or set it aside on its own motion.” 47 C.F.R. § 1.113(a).
.
Applications of County of San Mateo, California, To Modify Public Safety Land Mobile Radio Station WIG278,
Memorandum Opinion & Order,
. The Commission also rejected CMMC's complaint that modifying its license would hamper its ability to provide adequate service, calling it a "bare” assertion because CMMC failed to substantiate it.
Id.; see
47 U.S.C. § 309(d)(1) ("allegations of fact shall ... be supported by affidavit of a person or persons with personal knowledge thereof'); 47 C.F.R. § 1.87(d) (protest must comply with requirements of section 309). CMMC's unsupported allegation, the Commission noted, failed to "raise a substantial and material question of fact concerning the modification of CMMC’s license.”
. On reconsideration, the Commission further explained that "the erroneous grant of an application can be corrected
sua sponte
more than 30 days after it becomes final only where the grant was premised upon or contains a ministerial error.”
San Mateo II,
. Similarly, section 1.87 of the rules does not impose any time limit on the Commission's modification of a license. 47 C.F.R. § 1.87(a) ("/wjhenever it appears that a station license ... should be modified” (emphasis added)).
