Arizona Life Coalition (“Life Coalition”) appeals a summary judgment in favor of Stacey Stanton and other members of the Arizona License Plate Commission (collectively the “Commission”). Life Coalition contends that the Commission violated its First Amendment right to free speech and Fourteenth Amendment right to equal protection by arbitrarily denying its application for a special Arizona organization license plate that would portray its message “Choose Life.” We agree that the Commission violated Life Coalition’s First Amendment right to free speech and therefore do not reach its equal protection argument.
Messages conveyed through special organization plates—although possessing some characteristics of government speech—represent primarily private speech. Through its special organization license plate program, Arizona has created a limited public forum for all nonprofit organizations that meet the State’s statutory requirements. Because the Commission denied Life Coalition’s application on grounds not specified in the statute or related to the limited purpose of the license plate forum, we reverse the district court’s grant of summary judgment in favor of the Commission.
I
The parties do not dispute the facts, and there is no material issue of fact to prevent summary judgment from being entered. Life Coalition is an Arizona nonprofit corporation that provides “compassionate care ... to persons who are considering abortion, or who are affected by abortion.” In June 2002, Life Coalition resubmitted an *961 application for a speciality plate that would “display Life Coalition’s official logo, a small graphic of two children’s faces and the motto, ‘Choose Life.’ ” 1 The Arizona Department of Transportation (“Department”) certified that Life Coalition met the requirements of Arizona Revised Statute section 28-2404(G)(2) 2 and submitted Life Coalition’s request for its special license plate to the Commissiom 3
Upon receiving a request, section 28-2404(B) provides that
[t]he [C]ommission shall authorize a special organization plate if the organization meets the following requirements:
(1) The primary activity or interest of the organization serves the community, contributes to the welfare of others and is not offensive or discriminatory in its purpose, nature, activity or name[;]
(2) The name of the organization or any part of the organization’s purpose does not promote any specific product or brand name that is provided for sale[;] and
(3) The purpose of the organization does not promote a specific religion, faith or antireligious belief.
(Emphasis added).
The Commission first considered Life Coalition’s application in August 2002. Members of the Commission raised concerns over whether the general public would believe Arizona had endorsed the message of the “Choose Life” license plate, as well as concerns over whether groups with differing viewpoints would file applications. To obtain legal advice, the Commission tabled Life Coalition’s application without taking action.
To alleviate the Commission’s concerns, Life Coalition filed a revised application on September 27, 2002. In this application Life Coalition proposed including its name on the plate design. The Commission considered Life Coalition’s revised application in an August 2003 meeting. During the meeting, Gary Paisley, Chairman of Life Coalition, explained how Life Coalition served the community: (1) it organized a diaper drive, after which Life Coalition donated thousands of diapers to the Arizona Diaper Bank; (2) “Life Coalition’s purpose is to provide compassionate services to those people that are considering or have been affected by abortion including pregnancy tests, pregnancy counseling, and relationship counseling”; and (3) Life Coalition “established a hotline for women who are pregnant.” Paisley also told the Commission that Life Coalition’s membership included approximately 40 organizations and 100,000 individuals. Paisley then confirmed that a person or organization must subscribe to Life Coalition’s statement of principles to become a member. 4
*962 Initially, the Commission declined to take action on Life Coalition’s application. After Paisley implored the Commission to explain what statutory requirements Life Coalition failed to satisfy, a member of the Commission moved to formally deny the application, which passed by voice vote. Chairwoman Stanton replied to Paisley’s request for an explanation by stating that “the action of the Commission is final” and that she did not believe “now is an opportunity for[ ] further debate, or for further info that [Life Coalition] could put on additional applications.”
Life Coalition filed suit in the United States District Court for the District of Arizona on September 2, 2003. It filed its First Amended Verified Complaint on December 10, 2003. Pertinent to this appeal, Life Coalition moved for summary judgment on November 30, 2004, and the Commission cross-moved for summary judgment on January 1, 2005. The district court denied Life Coalition’s motion for summary judgment, and granted the Commission’s cross-motion for summary judgment. Life Coalition timely appealed. We reverse.
II
We review de novo a grant of summary judgment.
Balint v. Carson City,
The TIA provides that “[t]he district courts shall not enjoin, suspend or restrain the assessment, levy or collection of any tax under State law where a plain, speedy and efficient remedy may be had in the courts of such State.” 28 U.S.C. § 1341. In Arizona, drivers must pay an additional twenty-five dollar fee to obtain a special organization plate. The issue is whether the money paid to obtain a special organization plate constitutes a tax to which the TIA would apply.
We find persuasive the Sixth Circuit’s analysis in
Bredesen
and hold the extra fee is not a tax. The transaction between a state’s vehicle owner and the issuing authority is more akin to a contractual debt than a state imposed tax. Arizona has not coerced a sale attendant to the requirement that cars bear license plates to assist in identifying their owners, but has instead induced willing purchasers to agree to pay a certain extra sum of money in return for the right to bear a special message on an organizational license plate.
See Brede-
*963
sen,
The Sixth Circuit’s reasoning is supported by our decision in
Bidart Brothers v. California Apple Commission,
Ill
A
1
We must decide whether, by authorizing a specialty license plate sought by a nonprofit organization to display its message and the message of the organization’s members, the State of Arizona has adopted that speech as its own. It is undeniable that “when the government speaks for itself, it ‘may take legitimate and appropriate steps to ensure that its message is neither garbled nor distorted.’ ”
Planned Parenthood of S.C. Inc. v. Rose,
There is some question as to what standard we should apply in differentiating between private and government speech. In
Johanns v. Livestock Marketing Ass’n,
In
Bredesen,
Prior to Johanns, the Fourth, Eighth, and Tenth circuits had adopted a nonex-haustive list of four factors to differentiate between the two types of speech. Those factors are:
(1) the central “purpose” of the program in which the speech in question occurs; (2) the degree of “editorial control” exercised by the government or private entities over the content of the speech; (3) the identity of the “literal speaker”; and (4) whether the government or the private entity bears the “ultimate responsibility” for the content of the speech, in analyzing circumstances where both government and a private entity are claimed to be speaking.
Sons of Confederate Veterans, Inc.,
As noted by Judge Martin in his dissenting opinion in
Bredesen, Johanns
is factually distinguishable from these specialty license plate cases.
Although we agree with Judge Martin in that
Johanns
is factually distinguishable, we believe that
Johanns
is instructive when determining whether the message constitutes government or private speech. In concluding that the beef program represented government speech, the Court relied on factors similar to those set forth in the four-factor test. It considered who controlled the speech,
2
i
The Commission argues that the “primary function of Arizona license plates—including special plates-—is the State’s need to identify a vehicle and its owner.” It cites
Kahn v. Department of Motor Vehicles,
A vehicle license plate is a state-imposed display of registered vehicle identification. That the state permits license holders, for an additional fee, to vary minimally their vehicle identification from the prescribed form by selecting letter and/or number combinations which may reflect an individual’s personal or professional identity, or possibly express a thought or idea, is purely incidental to the primary function of vehicle identification.
Id.
at 166,
We agree with Life Coalition. While the primary purpose of any vehicle license plate is vehicle identification and registration, we are not concerned with the general validity of Arizona’s licensing requirements.
Cf. Rose,
By allowing organizations to obtain spe-ciality license plates with their logo and motto, Arizona is providing a forum in which philanthropic organizations,
see
Ariz. Rev.Code § 28-2404(B), can exercise their First Amendment rights in the hopes of raising money to support their cause.
See
Ariz. Rev.Code § 28-2402(1) (setting the fee for specialty license plates at twenty-five dollars);
id.
§ 28-2404(F) (stating that eight dollars of the fee is a specialty plate administration fee and seventeen dollars is an annual donation to the organiza
*966
tion). As in
Sons of Confederate Veterans, Inc.,
the fee structure for Arizona speciality plates suggests the program’s revenue-producing aim.
See
The revenue raising purpose of the Arizona special organization plate program supports a finding of private speech.
ii
The Commission’s de minimis editorial control over the plate design and color does not support a finding that the messages conveyed by the organization constitute government speech. The Arizona legislature has chosen to limit the license plate forum to only those organizations that “serve[ ] the community, contribute[ ] to the welfare of others and [are] not offensive or discriminatory in [their] purpose, nature, activity or name.” Ariz.Rev. Stat. § 28-2404(B). In addition, the organizations cannot “promote a specific religion, faith or antireligious belief.” Id.
However, as Life Coalition notes in its brief, the statutory requirements address who may speak, not what they may say. For instance, in
Bose,
the “Choose Life” license plate “originated with the State, and the legislature determined that the plate will bear the message ‘Choose Life.’ ”
In this case, the idea of a “Choose Life” license plate originated with Life Coalition. While the Commission determined whether Life Coalition met the statutory guidelines for gaining access to the license plate forum, Life Coalition determined the substantive content of their message.
Cf. Wells,
Therefore, this factor weighs in favor of private speech.
iii
“[O]wnership of the means of communication [i]s a valid consideration in determining whether [the license plate] contained government speech.”
Sons of Confederate Veterans, Inc.,
This factor has characteristics of both private and government speech. Nevertheless, in this situation, where Life Coalition’s logo depicting the faces of two young children will also be displayed on the license plate supporting the message “Choose Life,” we conclude that it weighs in favor of finding this to be primarily private speech.
iv
The question of who bears “ultimate responsibility” for the “Choose Life” license plate is very similar to the question of who is the literal speaker.
See Rose,
It is true that, like the Secretary in Johanns, Arizona developed the program that allows nonprofit organizations such as Life Coalition to obtain specialty license plates. However, in Johanns the beef producers had no choice but to support the beef ad. In comparison, there is nothing in the record to even suggest that Arizona intended to adopt the message of each special organization plate as its own state speech. Instead, the burden is on the nonprofit organization. If it wants to convey a certain message through the Arizona specialty plate program, it must take the affirmative step of submitting an application. This suggests that it is Life Coalition, rather than the State of Arizona, that bears ultimate responsibility for the content of the speech.
We therefore hold that the “Choose Life” message displayed through a speciality license plate if issued by Arizona would constitute private speech.
B
1
Having determined that the “Choose Life” message would represent private speech, we must now determine whether the Commission has acted appropriately under the First Amendment. The first step in ’assessing a First Amendment claim relating to private speech on government property is to “identify the nature of the forum, because the extent to which the Government may limit access depends on whether the forum is public or nonpublic.”
Sammartano v. First Judicial Dist. Court,
“[A] public forum may be created by government designation of a place or channel of communication for use by the public at large for assembly and speech, for use by certain speakers, or for the discussion of certain subjects.”
Cornelius,
The designated and limited public forum classifications “ha[ve] been the source of much confusion.”
Id.
at 1074. A limited public forum exists when the government intentionally opens a nonpublic forum to expressive activity by a certain class of speakers to address a particular class of topics.
Cogswell v. City of Seattle,
We have no trouble concluding that Arizona’s purpose was to open up its license plate forum to a certain class of organizations for expressive activity.
Cf. Faith Ctr. Church Evangelistic Ministries v. Glover,
Arizona’s speciality plate program encompasses a wide range of philanthropic organizations with community based programs/ideals. Section 28-2404(B) states that the Commission shall authorize a spe-ciality license plate to all nonprofit organizations that (1) “serve[] the community, contribute[ ] to the welfare of others and [are] not offensive or discriminatory in [their] purpose, nature, activity or name”; (2) has an organizational name or purpose that “does not promote any specific product or brand name ... provided for sale”; and (3) the organizations do not “promote a specific religion, faith, or antireligious belief.” '
Applying this statutory mandate, the Commission has authorized, and the Department has issued, the following special organization plates: (1) The University of Phoenix Alumni Network (bearing the University’s identifier, “Univ. of Phoenix”); (2) Associated Fire Fighters of Arizona (bearing the Union’s motto, “Professional Fire Fighters”); (3) Fraternal Order of Police (bearing the Order’s identifier, “Fraternal Order of Police”); (4) Legion of Valor (bearing the Legion’s identifier, “Legion of Valor”); and (5) Wildlife Conservation Council (bearing the Council’s motto, *970 “Conserving Wildlife”)- 7 In addition, the Commission has authorized six additional license plates, but at the time of briefing this appeal we were told the Department had yet to issue them because of factors unrelated to this appeal: (1) Civil Air Patrol; (2) Arizona Association of Future Farmers of America; (3) Rotary International; (4) Arizona Hospice Palliative Care Organizations; (5) Red Means Stop Coalition; and (6) Arizona Historical Society.
Nevertheless, “[a] policy with a broad purpose ... is not dispositive of an intent to create a public forum by designation.”
Faith Ctr. Church Evangelistic Ministries,
Similarly, Arizona by statute restricts its speciality license plate program to only nonprofit organizations with community driven purposes that do not promote a specific religion, faith or antireligious belief. Ariz.Rev.Stat. § 28-2404(B). To gain access, the nonprofit organization must have its application reviewed and approved by the Commission.
Cf. Cornelius,
From the record before us, it is also clear that the Commission has consistently applied the access restrictions when reviewing pending applications.
See Faith Ctr. Church Evangelistic Ministries,
Finally, we note that the nature of the forum also supports a conclusion that Arizona intended only to create a limited public forum.
See Faith Center Church Evangelistic Ministries,
2
i
The distinction between viewpoint discrimination and content-based discrimination is not precise.
Rosenberger,
The dissent’s assertion that no viewpoint discrimination occurs because the Guidelines discriminate against an entire class of viewpoints reflects an insupportable assumption that all debate is bipolar and that antireligious speech is the only response to religious speech. Our understanding of the complex and multifaceted nature of public discourse has not embraced such a contrived description of the marketplace of ideas. If the topic of debate is, for example, racism, then exclusion of several views on that problem is just as offensive to the First Amendment as exclusion of only one. It is as objectionable to exclude both a theistic and an atheistic perspective on the debate as it is to exclude one, the other, or yet another political, economic or social viewpoint.
Id.
Unlike the University system in
Rosenberger,
the Arizona statutes do not expressly prohibit abortion-related speech in the license plate forum.
Cf. id.
(stating that the Guidelines prohibit religious activity). Rather, the State has opened this forum
to
all organizations that serve the
*972
community and contribute to the welfare of others in a nondiscriminatory way. Ariz.Rev.Stat. § 28-2404(B)(l). The Commission does not argue that Life Coalition failed to meet this statutory requirement. Instead, the only justification the Commission can give for denying Life Coalition’s application is that it chose not to enter the Choose Life/Pro-Choice debate. And “where the government is plainly motivated by the nature of the message rather than the limitations of the forum or a specific risk within that forum, it is regulating a viewpoint rather than a subject matter.”
Sammartano,
Moreover, during the August 2002 hearing, the Commissioners expressed concerns that, if they granted Life Coalition’s application, groups with opposing viewpoints would file applications for their own special organization plate. Preventing Life Coalition from expressing its viewpoint out of a fear that other groups would express opposing views seems to be a clear form of viewpoint discrimination. As we previously stated in
Hopper,
“[a] ban on ‘controversial [speech]’ may all too easily lend itself to viewpoint discrimination.”
Admittedly, this is a difficult issue. “The line between an acceptable subject matter limitation and unconstitutional viewpoint discrimination is not a bright one.”
Cogswell,
Arizona has created a limited public forum for nonprofit organizations. The only substantive restriction is that the license plate cannot promote a specific product for sale, or a specific religion, faith, or antireli-gious belief. Nowhere does the statute create objective criteria for limiting “controversial” material, and nowhere does the statute prohibit speech related to abortion.
Cf. Cogswell,
ii
We also hold that the Commission acted unreasonably by denying Life Coalition’s application for reasons not statutorily based or related to the purpose of the limited public forum. “The reasonableness of a governmental restriction limiting access to a nonpublic forum must be assessed ‘in light of the purpose of the forum and all of the surrounding circumstances.’ ”
Id.
at 817 (quoting
Cornelius,
The Commission, in fulfilling the legislature’s intent to allow nonprofit organizations a means to promote their community-based cause to the public in the hopes of *973 raising awareness and revenue, regulates access to the forum to preserve its community-based function and protect the primary function of license plates: to aid in vehicle identification. The Commission does not dispute that Life Coalition has met each of the statutory requirements. It is an organization that benefits the community without promoting the sale of a product or any religious, faith, or antireli-gious belief. Nor does the Commission contend that Life Coalition’s special organization plate will interfere with vehicle identification. In other words, it fits within the program’s purpose. When an organization meets the requirements, the statute provides that “[t]he [Commission shall authorize a special organization plate.” Ariz.Rev.Stat. § 28-2404(B) (emphasis added). By denying Life Coalition’s application, although the organization and its message complied with the limited public forum’s purpose as it is currently defined under Arizona law, the Commission ignored its statutory mandate and acted unreasonably in violation of the First Amendment to the United States Constitution. 8
IV
We recognize that Arizona has a legitimate interest in regulating controversial material displayed publicly on government property. Nevertheless, we are mindful of potential constitutional problems when government officials are given unbridled discretion in regulating speech, even in limited public fora. Arizona has defined the outer limits of its speciality license plate program, and Life Coalition fits within those statutory boundaries. Because the Commission denied Life Coalition’s application on a ground not expressly related to the forum’s purpose by discriminating on the basis of the viewpoint contained in its proposed message, we conclude that the Commission acted in violation of the First Amendment. We therefore reverse the district court’s grant of summary judgment in favor of the Commission. The cause is remanded for entry of judgment in favor of Arizona Life Coalition on its First Amendment claim and such further proceedings as are necessary to ensure that its specialty license plate application is approved by the Arizona License Plate Commission.
REVERSED and REMANDED.
Notes
. Life Coalition had previously submitted an application in January 2002; however, that application was either not received by the Commission or lost.
. Arizona Revised Statute section 28-2404(G)(2) defines "organization” as
an entity that is organized as a nonprofit corporation pursuant to title 10, chapters 24 through 40 and that either: (a) Certifies to the department that the organization has at least two hundred members[; or] (b) If the organization has fewer than two hundred members, agrees to pay the production and program costs of the special organization plate as determined by the commission.
(Footnote omitted).
. Arizona Revised Statute section 28-2404(A) provides that if the Department "determines the organization meets the requirements of an organization as defined in [section 28-2404(G)(2) ], the [Department shall submit the request for a special organization plate to the license plate commission.”
. Life Coalition’s members must adhere to its stated secular principles. For example, one of Life Coalition’s principles is to "believe in *962 the sanctity of every innocent human life, from conception to natural death, regardless of age, gender, disability, or degree of dependence.”
. Although we have not yet expressly adopted the four-factor test, we relied on similar factors in
Downs v. Los Angeles Unified School District,
. In a letter of supplemental authority filed after oral argument, the Commission directs us to the following statement from
Pacific Gas & Electric Co. v. Public Utilities Commission of Cal.,
In Wooley v. Maynard, we held that New Hampshire could not require two citizens to display a slogan on their license plates and thereby "use their private property as a ‘mobile billboard' for the State’s ideological message.” The "private property” that was used to spread the unwelcome message was the automobile, not the license plate.
Id.
at 17,
. The parties stipulated to this fact in filings before the district court. We do not know whether, since the inception of this appeal, the Commission has authorized the making of any other speciality license plates.
. Given our holding, we will not address Life Coalition’s claim that the Commission also violated its equal protection rights under the Fourteenth Amendment, or that section 28-2404 is unconstitutionally vague.
ACLU of Nev. v. City of Las Vegas,
