OPINION
Plaintiffs Annelore B. Norton and Lois Greiffendorf, anti-abortion activists, appeal the district court’s determination that (1) the Freedom of Access to Clinic Entrances Act, 18 U.S.C. § 248, does not, on its face, violate plaintiffs’ First Amendment rights of free speech and freedom of association; (2) plaintiffs’ as-applied First Amendment *551 challenge is not ripe for judicial review; (3) Congress validly enacted the Act pursuant to its Commerce Clause powers; and, (4) the Act does not violate plaintiffs’ rights under the Equal Protection Clause. We AFFIRM.
I.
This case arises out of plaintiffs’ protests at the Planned Parenthood Clinic in Kalamazoo, Michigan. Norton, a volunteer nurse, and Greiffendorf, a teacher in a Roman Catholic school, regularly picketed, prayed, handed out literature, and attempted to counsel individuals who entered the Clinic. Typically, plaintiffs stood on the public sidewalk on either side of the Clinic’s driveway. Although plaintiffs claim they do not intend to block access to the Clinic, on some occasions, drivers would stop in the Clinic’s driveway to take a leaflet from, or speak with, one of the plaintiffs.
Concerned about potential obstruction, Clinic employees made several complaints to state and federal law enforcement. In response, the United States Marshall for the Western District of Michigan requested Norton attend a meeting with law enforcement and Clinic employees. Norton attended the meeting on June 1, 2000, along with her attorney, John Lohrstorfer. At the meeting, federal agents discussed Norton’s activity in handing out leaflets and speaking with individuals in cars stopped in the Clinic driveway. The agents advised Norton that she was causing drivers to stop in the driveway, thereby impeding access to the Clinic. Gerry Alexander, a Federal Bureau of Investigation agent, informed Norton they were concerned about a “pattern of activity” and that such a pattern could be considered a violation of the Freedom of Access to Clinic Entrances Act. The agents also informed Norton that she would not risk prosecution if she picketed, prayed and counseled across the street from the Clinic.
In a letter dated June 2, 2000, the government advised the plaintiffs that “they will need to communicate with individuals visiting the clinic at some other point— either across the street or at some other area where they are not blocking access to the clinic.” Although Greiffendorf did not attend the meeting, she claims that after reading the June 2 letter, she did not resume her counseling and protesting activities outside the Clinic because she feared arrest.
Norton was not as easily dissuaded. On or about June 19, 2000, Norton returned to the Clinic and prayed on the sidewalk. She did, however, attempt to stay approximately thirty feet from the driveway, so as to avoid stopping cars. Notwithstanding the Clinic sign cautioning “For Traffic Safety Do Not Stop In Drive, Persons Outside Gate Are Not Employees of Planned Parenthood” and Norton’s distance from the Clinic driveway, a car stopped in the driveway and called out to Norton. At the same time, a Clinic employee drove up behind the stopped car and began honking her horn. Concerned about arrest, Norton signaled to the first driver to move across the street. Apparently on the same day, an individual who Norton recognized as a Clinic employee, motioned for Norton to approach her car. Fearing entrapment, Norton turned and walked away from the car. Following these incidents, Norton left the Clinic and has not returned.
After a series of letters between counsel, plaintiffs filed suit against the Attorney General, the United States Attorney for the Western District of Michigan, United States Marshal Barbara C. Lee, and FBI Agent Gerry Alexander, in their official capacity, challenging the constitutionality *552 of the Act, and seeking declaratory and injunctive relief. After briefing and a hearing, the district court dismissed plaintiffs’ seven-count complaint. Relying on the unanimous precedent of those circuits that have considered the issue, the district court dismissed plaintiffs’ facial challenges to the Act. The district court declined to reach the substance of plaintiffs’ as-apphed challenge, finding such claims unripe for review; and, in the alternative, declined to exercise its discretion to grant declaratory relief under the Declaratory Judgment Act. The district court denied plaintiffs’ request for injunctive relief.
II.
This court reviews a district court’s dismissal of a complaint
de novo. Moore v. City of Harriman,
All of our sister circuits to address First Amendment facial challenges to the Act have upheld the Act.
United States v. Gregg,
A.
Plaintiffs argue that the Act only restricts the speech of abortion opponents, and is therefore a content-based restriction. A statute that regulates speech or conduct “based on hostility — or favoritism — toward the underlying message expressed” is content-based.
R.A.V. v. City of St. Paul,
*553
To the extent the Act implicates protected expression, we find that it does so in a content-neutral manner. The Act prohibits interference with a variety of “reproductive health services,” including all “medical, surgical, counseling or referral services relating to the human reproductive system.” 18 U.S.C. § 248(e)(5) (2002). Thus, the Act prohibits interference with not only abortion-related services, it also prohibits interference with counseling regarding abortion alternatives.
See Terry,
As a content-neutral restriction, the Act must withstand intermediate scrutiny.
Gregg,
B.
Plaintiffs also contend that the Act is impermissibly vague. A statute is unconstitutionally vague if it does not give a “person of ordinary intelligence a reasonable opportunity to know what is prohibited.”
Grayned v. City of Rockford,
Relatedly, plaintiffs also mount an overbreadth challenge to the Act. A statute is overbroad only if “it reaches a substantial number of impermissible applications.”
New York v. Ferber,
III.
A.
The district court dismissed plaintiffs’ as-applied challenge pursuant to Rule 12(b)(1) for lack of subject matter jurisdiction. A court lacks jurisdiction over the subject matter if the claim is not yet ripe for judicial review.
Bigelow v. Michigan Dep’t of Natural Res.,
Given these guidelines, we find that plaintiffs’ as-applied challenge is not yet ripe for review. First, assuming plaintiffs have sufficiently alleged unconstitutional harm, they have not established that such alleged harm will ever come to pass. In the June 1, 2000, meeting the government indicated that it was concerned about a “pattern of activity.” Plaintiffs have not, however, engaged in such a “pattern of activity.” While in certain circumstances, an unequivocal intention to engage in such a “pattern of activity” might suffice for ripeness purposes, the Act is a specific intent statute. Accordingly, application of the Act depends not only on the existence of such a “pattern of activity,” but on specific facts demonstrating that plaintiffs acted with the requisite specific intent. In the present case, this inquiry is further complicated by the fact that plaintiffs have professed an intention to comply with the Act. Under these circumstances, we cannot conclude that plaintiffs have sufficiently demonstrated that the alleged harm will ever come to pass.
Along the same lines, plaintiffs cannot show that the current factual record is sufficiently developed to permit review. As noted above, the government indicated that it might consider a “pattern of activity” to be a violation of the Act. But plaintiffs have not engaged in such a pattern, and without a concrete set of facts, we would be forced to speculate regarding the specific components of a “pattern of activi *555 ty” and the likelihood that the Act might be applied to them. Under these circumstances, it would be impossible to evaluate plaintiffs’ claim that the Act, as applied to them, violates the First Amendment.
Finally, withholding judicial relief does not result in undue hardship to the plaintiffs. Although plaintiffs claim they were intimidated from resuming their counseling, picketing, and praying activities at the Clinic, the meeting did not deter Norton, who resumed counseling on June 19. Even accepting plaintiffs’ professed uncertainty about counseling on the section of the sidewalk immediately adjacent to the Clinic, some uncertainty inheres in conduct — even conduct motivated only by the strongest moral convictions — along “the boundaries of the criminal law.”
Adult Video Ass’n,
In light of the foregoing, we hold that the district court correctly concluded that plaintiffs’ as-applied challenge is not ripe for review and properly dismissed their challenge for lack of subject matter jurisdiction.
B.
In a footnote, plaintiffs assert that they have standing to assert the First Amendment rights of individuals entering the Clinic who may wish to speak with them. Ordinarily, a party does not have standing to assert the rights of third parties.
In re Troutman Enterp., Inc. (Harker v. Troutman),
IV.
“Due respect for the decisions of a coordinate branch of Government demands that we invalidate a congressional enactment only upon a plain showing that Congress has exceeded its constitutional bounds.”
United States v. Morrison,
All eight circuits to address the issue have held that Congress validly enacted the Act pursuant to its Commerce Clause authority.
Gregg,
At the outset, we reject plaintiffs’ initial contention that
Morrison
calls into question the uniform body of cases upholding the Act against Commerce Clause -challenges. Rather than breaking new Commerce Clause ground,
Morrison
derived its four-factor framework directly from
Lopez. Id.
at 609,
We are also satisfied that the Act withstands scrutiny under
Morrison.
In particular, we find the Third Circuit’s application of the
Lopez/Morrison
four-factor test and its examination of the Act’s extensive congressional findings persuasive.
See Gregg,
The Act, which was enacted prior to the Supreme Court’s decisions in
Lopez
and
Morrison,
does not contain a formal jurisdictional element,
see Gregg,
Morrison
also instructs us to consider any congressional findings that a particular activity burdens interstate commerce.
Finally, the fourth
Morrison
factor directs us to assess the link between the regulated activity and interstate commerce.
With respect to this first inquiry, the legislative record indicates that there is a national market for abortion services.
See Gregg,
As a consequence of this national shortage in reproductive health providers, physicians must also engage in interstate commerce. The Senate noted that physicians travel interstate and that some physicians perform abortion-related services in more than one state. S.Rep. No. 103-117, at 31. For example, the Senate noted that one physician from Minnesota provided abortion services in Minnesota, Montana, North Dakota, and parts of Canada. Id. at n. 46.
In addition, the Senate also found that reproductive health clinics engage in interstate commerce because they “purchase medicine, medical supplies, surgical instruments and other necessary medical products, often from other States; they employ staff; they own and lease office space; they generate income.” Id. at 31.
As to the link between the regulated activity and interstate commerce, Congress concluded that the clinic blockades and violent protests proscribed by the Act forced clinics to close, caused harmful delays in the provision of medical services, increased health risks to patients, S.Rep. No. 103-117, at 14-15 and caused millions of dollars of damage to reproductive health facilities, H.R.Rep. No. 103-306, at 7, U.S.C.C.A.N., at 704. Threats of violence also decreased physicians’ willingness to perform abortions. S.Rep. No. 103-117, at 14; H.R.Rep. No. 103-306, at 8, U.S.C.C.A.N., at 705. The Senate Committee noted that the violence “has ... taken a severe toll on providers, intimidated some into ceasing to offer abortion services, and contributed to an already acute shortage of qualified abortion providers.” S.Rep. No. 103-117, at 14. For example, at least three physicians in Dallas stopped performing abortions in 1992 as a result of pressure by an anti-abortion group; two doctors in Melbourne, Florida stopped working in 1993 after receiving death threats; and, since Dr. Gunn, an abortion-provider in Florida, was shot in 1993, at least eight more doctors have stopped offering abortion services. Id. at 16-17. The House Committee reported similar conclusions, characterizing the provider shortage as “at least partially attributable to the violence and intimidation described in [the] report.” H.R.Rep. No. 103-306, at 8, U.S.C.C.A.N. at 705. According to the record, “Doctors understandably are leaving the field, and new graduate^] have little desire to enter the field even as part *559 of a wider obstetrics/gynecology practice.” Id.
In addition to the documented economic disruption of clinic blockades and violent protests, Congress also found that this conduct was driven by a nationally unified and nationally coordinated anti-abortion movement. Congress found that many of these activities were organized and directed across state lines, and that the problem was increasingly beyond the scope of local and state authorities. H.R.Rep. No. 103-306, at 9, U.S.C.C.A.N., at 706.
Given the detailed congressional record, we are satisfied that Congress had a rational basis to conclude that the activities prohibited by the Act disrupted the national market for abortion-related services and decreased the availability of such services.
See Gregg,
V.
Finally, plaintiffs argue that the Act targets only anti-abortion groups and therefore violates the Equal Protection Clause. We find this argument meritless because plaintiffs do not constitute a suspect class, the Act does not infringe on plaintiffs’ First Amendment rights, and Congress plainly had a rational basis in enacting the Act.
See Terry,
VI.
For the foregoing reasons, we AFFIRM the decision of the district court dismissing plaintiffs’ constitutional challenges to the Act and its denial of declaratory and in-junctive relief.
Notes
. In relevant part, the Act provides that “Whoever (1) by force or threat of force or by physical obstruction, intentionally injures, intimidates, or interferes with or attempts to injure, intimidate, or interfere with any person because that person is or has been, or in order to intimidate such person or any other person or any class of persons from, obtaining or providing reproductive health services ... shall be subject to the ... civil remedies provided in subsection (c).“ 18 U.S.C. § 248(a) (2002).
