Opinion for the Court filed by Circuit Judge GARLAND.
JMM Corporation, the operator of an adult video store in the District of Columbia, sued the District in federal district court, alleging that its zoning regulations for such establishments were unconstitutional. In light of ongoing District of Columbia administrative and judicial enforcement proceedings against JMM, the district court dismissed the complaint under the abstention doctrine of
Younger v.
*1119
Harris,
JMM contends that, because the District of Columbia is not a state, its enforcement actions do “not merit the same protections” as would a state’s. Reply Br. at 2. Younger will apply, the appellant insists, only “[i]f and when the District of Columbia attains statehood.” Id. at 3. But the District does not have to wait until that day. We hold that the enforcement actions of the District of Columbia are entitled to the same respect that the federal courts accord those of the states, and therefore affirm the dismissal of JMM’s complaint.
I
JMM, doing business as “Fun Fair Video,” sells sexually explicit videos and provides booths for their viewing. Fun Fair is located in a “Community Business Center District” in the District of Columbia, an area that is not designated for “sexually-oriented business establishments” (SOBEs) under the District’s zoning regulations. 1 Nor does Fun Fair have the required certificate of occupancy to operate as a SOBE.
In 2000, the D.C. Department of Consumer and Regulatory Affairs (DCRA) commenced the first of what became three sets of administrative enforcement actions against JMM. First, in April 2000, the DCRA issued JMM a notice of infraction for operating without a proper certificate of occupancy. In June 2000, the matter was heard by an Administrative Law Judge (ALJ) of the DCRA’s Office of Adjudication. On June 20, the ALJ found that, while JMM had obtained a certificate of occupancy for a “video store not sexually oriented” (a “non-SOBE”), it was in fact operating a SOBE in a zone that was not designated for such use. The ALJ ordered JMM to cease doing business until it obtained a proper certificate. Although JMM had the right to appeal the ALJ’s order to the D.C. Board of Appeals and Review, see D.C. Mun. Regs. tit. 1, § 503, and from there to the District of Columbia Court of Appeals, see D.C.Code ANN. § 2-510, it did not do so.
Nor did JMM cease doing business. Indeed, JMM continued to operate as a SOBE throughout the course of the district court litigation, and is still doing so. It has not relocated, applied for a SOBE license, or ceased its business activities.
In September 2001, the DCRA issued a second set of notices of infraction to JMM, again for operating without a proper certificate. These, too, were heard before an ALJ. On March 5, 2002, the ALJ again found the charges proven, imposed fines, and ordered JMM to cease operations until it obtained a proper certificate. This time, JMM did appeal to the D.C. Board of Appeals and Review, where the matter is currently pending.
Meanwhile, on February 27, 2002, the DCRA instituted its third enforcement action, issuing notices of intent to revoke JMM’s non-SOBE certificate of occupancy as well as its mechanical amusement license. In October 2002, an ALJ found in favor of the DCRA. JMM again appealed to the Board of Appeals and Review, where that appeal also remains pending.
On March 5, 2002 — the day of the ALJ hearing on the 2001 infractions and a week *1120 after the DCRA issued its 2002 notices of revocation — JMM filed the instant action against the District of Columbia and the DCRA in the United States District Court for the District of Columbia. JMM’s complaint, brought pursuant to 42 U.S.C. § 1983, alleged that the District’s SOBE regulations violate the First, Fifth, and Fourteenth Amendments because, inter alia, they are unconstitutional content-based restrictions, and are vague and overbroad. JMM sought money damages, an order declaring the regulations unconstitutional, and an injunction against their enforcement. JMM also sought a preliminary injunction barring all pending enforcement actions.
On May 15, 2002, the district court denied the preliminary injunction, on the basis of the abstention doctrine of
Younger v. Harris,
II
In
Younger v. Harris
and its progeny, the Supreme Court held that, except in extraordinary circumstances, a federal court should not enjoin a pending state proceeding (including an administrative proceeding) that is judicial in nature and involves important state interests.
Ohio Civil Rights Comm’n v. Dayton Christian Sch., Inc.,
The
Younger
Court rested its abstention doctrine both on “equitable principles” and on “concerns for comity and federalism.”
Ohio Civil Rights Comm’n,
A
The first source of the policy against federal interference with state court proceedings identified by
Younger
was “the basic doctrine of equity jurisprudence that courts of equity should not act ... when the moving party has an adequate remedy at law and will not suffer irreparable injury if denied equitable relief.”
Younger,
These two principles apply in full measure to District of Columbia enforcement proceedings. First, the defendant in District proceedings has an adequate remedy for its asserted constitutional violations because it has “an opportunity to raise [its] constitutional claims” as defenses,
Younger,
*1122
Second, the defendant in a District proceeding will not suffer irreparable injury by being foreclosed from obtaining an injunction in federal court. As
Trainor
explained, the burden of defending an enforcement action is “not sufficient to warrant interference by the federal courts with legitimate state efforts to enforce state laws; only extraordinary circumstances would suffice.”
B
The second source of the
Younger
abstention doctrine — identified as the “ ‘more vital consideration’ ”• — was “concerns for comity and federalism.”
Ohio Civil Rights Comm’n,
As the Court explained in
Huffman, Younger's
comity/federalism component requires courts to “abide by standards of restraint that go well beyond those of private equity jurisprudence.”
All of these comity concerns apply with equal force to the District of Columbia.
See generally id.
Federal court interference with District enforcement proceedings may prevent the District from effectuating its substantive policies and disrupt its efforts to protect interests it regards as important. It will certainly result in duplicative legal proceedings and may be interpreted to reflect negatively on the District’s ability to enforce constitutional principles. But just as with a state, there is no reason to presume that the courts of the District cannot be trusted to adequately protect federal constitutional rights. To the contrary, “Congress has created a trial and appellate court system of general jurisdiction for the District separate from the United States courts (of which we are a part) and intended to serve the District in much the same manner as the court systems of the various states.”
Madley,
In 1970, Congress reorganized the courts of the District of Columbia pursuant to its authority under Article I, § 8, cl. 17 of the Constitution.
See Palmore v. United States,
Congress’ intent was to give the District “a court system comparable to those of the states,” H.R.Rep. No. 91-907, at 23, one “separate and apart from the United States District Court and the United States Court of Appeals for the District of Columbia Circuit,” id. at 5. In “constituting the lower trial court as a purely local court, similar to a state court, it follow[ed] that appeals from the local court should be treated like those in the state systems, and that the channel of appeals should be directly to the United States Supreme Court.” Id. at 34-35. Thus, the reorganization made “the District of Columbia Court of Appeals the highest local court,” id. at 35, “similar to a state Supreme Court,” id. at 5, and made its decisions reviewable by the United States Supreme Court, id. at 35. 14 The House Report stat *1124 ed that, when the reorganization was complete, “the United States District Court for the District of Columbia” would be “on a par with other United States District Courts, exercising federal jurisdiction only, and the Superior Court of the District of Columbia will have all purely local jurisdiction.” Id. at 34. 15
As both this court and the Supreme Court have noted, “from [the passage of the DCCRA] onward, the relationship of the federal to the local judiciary was to be akin to that historically existent in the states.”
Steorts v. American Airlines, Inc.,
Moreover, this circuit has treated the District of Columbia courts as state courts in the application of two other abstention doctrines. One is
Pullman
abstention, which holds that “when a federal constitutional claim is premised on an unsettled question of state law, the federal court should stay its hand in order to provide the state courts an opportunity to settle the underlying state-law question and thus avoid the possibility of unnecessarily deciding a constitutional question.”
Harris County Comm’rs Court v. Moore,
In sum, the general considerations of comity described in the Younger line of cases apply with full force to the District of Columbia. And while comity’s federalism component does not apply per se, Congress has made clear that it intends federal courts generally to treat the District of Columbia judicial system as if it were a state system, an intent that this circuit has long respected and effectuated. When these considerations are combined with the fact that the other source of the Younger doctrine — principles of equity jurisprudence — are also fully applicable to the District of Columbia, the conclusion that this circuit should regard the District as a state for purposes of Yoimger abstention is inescapable.
Ill
The remaining issue, the application of
Younger
to this case, is straightforward and breaks no new ground. In
Younger,
the plaintiff had been charged in state court with violating the California Criminal Syndicalism Act. He then filed a complaint in federal court alleging that the Act on its face, and his prosecution there
*1126
under, violated his First Amendment right of free speech. A three-judge district court found the statute void for vagueness and overbreadth, and enjoined the prosecution.
Although the District did not file its Superior Court action against JMM until two months after JMM filed its federal complaint,
Younger
applies as long as the state proceedings were initiated “ ‘before any proceedings of substance on the merits have taken place in the federal court.’ ”
Hawaii Housing Auth. v. Midkiff
Moreover, although the Superior Court action was not yet pending at the time JMM filed its federal complaint, the DCRA administrative proceedings were and had been for some time. The Supreme Court has extended
Younger to
pending administrative enforcement actions where the state proceedings are judicial in nature and the state interests are important.
Ohio Civil Rights Comm’n,
For
Younger
abstention to be appropriate in the face of pending state proceedings, the federal plaintiff must “have a full and fair opportunity to litigate” its constitutional claims in those proceedings.
Ohio Civil Rights Comm’n,
Finally, as also noted in Part II.A, we must consider whether there are “extraordinary circumstances warranting equitable relief.”
Trainor,
To summarize: The ongoing District of Columbia proceedings are judicial in nature and implicate important District interests; those proceedings afford JMM an adequate opportunity to litigate its federal claims; and there are no extraordinary circumstances warranting equitable relief. Accordingly, the criteria for application of the Younger doctrine have been satisfied, and the district court’s dismissal of JMM’s complaint was appropriate.
IV
We conclude that the District of' Columbia is a state for purposes of Younger abstention, and that such abstention is warranted in this case. Accordingly, the judgment of the district court is
affirmed.
Notes
. See generally D.C. Mun Regs. tit. 11, §§ 199.1, 720, 744.1, 754.1, 1700.1, 1706.4, 3203, 3205; id. tit. 12, § 118.4.
. We have jurisdiction to hear that appeal under the collateral order doctrine.
See Quackenbush v. Allstate Ins. Co.,
. The Court extended
Younger
to declaratory as well as injunctive relief in
Samuels v. Mackell,
.See, e.g., District Properties Assocs. v. District of Columbia,
. See D.C.Code Ann. §§ 11-921, -923.
. See D.C. Code Ann. § 11-721.
. See 28 U.S.C. § 1257(a), (b).
. See D.C.Code Ann. § 2-510(a) (providing that any person adversely affected or aggrieved by an agency decision "is entitled to a judicial review thereof” in the D.C. Court of Appeals); id. § 2-510(a)(1) (providing that the D.C. Court of Appeals' authority to review administrative agency proceedings includes the power “to decide all relevant questions of law, to interpret constitutional and statutory provisions, and to determine the meaning or applicability of the terms of any action”); see also id. % 11-722.
. See 28 U.S.C. § 1257.
. As noted in Part III, it is well settled that
Younger
applies "to state administrative pro
*1122
ceedings in which important state interests are vindicated, so long as in the course of those proceedings the federal plaintiff would have a full and fair opportunity to litigate his constitutional claim,”
Ohio Civil Rights Comm’n,
.
Younger
held this to be true even where a defendant levels a facial First Amendment challenge against a regulation and contends that its existence has a chilling effect on his free speech.
See Younger,
. Pub. L. No. 91-358, tit. I, § 111, 84 Stat. 473, 475-521 (1970).
. See D.C.Code Ann. §§ 11-101, -721, - 901, -921, -923.
.
See
28 U.S.C. § 1257(b) (treating the D.C. Court of Appeals as the "highest court of a state” for purposes of Supreme Court review by certiorari);
id.
§ 2113 (treating the D.C. Court of Appeals as a "state court” and "the highest court of a state” for purposes of other Supreme Court review provisions);
see also
*1124
D.C.Code Ann. § 11-102. In
Huffman,
a case that extended
Younger
beyond state criminal proceedings, the Supreme Court put significant weight on the availability of federal court review through § 1257 for "any federal claim properly asserted in and rejected by state courts.”
. See also 28 U.S.C, § 1451 (treating the Superior Court as a state court for purposes of removal jurisdiction).
.
See Key v. Doyle,
.
See Madley,
.See
42 U.S.C. § 1983 (providing that "[e]v-eiy person who, under color of any statute, ordinance, [or] regulation ... of any State or Territory
or the District of Columbia,
subjects ... any citizen of the United States ... to the deprivation of any rights, privileges, or immunities secured by the Constitution and laws, shall be liable to the party injured”) (emphasis added);
see also
28 U.S.C. § 1332(d) (treating the District as a state for purposes of diversity jurisdiction);
id.
§ 1367(e) (treating the District as a state for purposes of supplemental jurisdiction). The District has not, however, been treated as a state for all purposes.
See, e.g., Palmore,
.
See Pennzoil Co. v. Texaco, Inc.,
.
See Reiman v. Smith,
.The Supreme Court has also applied
Pullman
abstention to Puerto Rico.
See Fornaris v. Ridge Tool Co.,
.
See Ohio Civil Rights Comm’n,
.
See City of Los Angeles
v.
Alameda Books, Inc.,
. JMM claims that its facial attacks on the constitutionality of the zoning regulations cannot be heard on review of the DCRA enforcement actions. But they plainly are defenses to those actions and therefore can be heard on appeal. Nor does the fact that JMM has added a facial First Amendment challenge to its attack on the enforcement actions take its complaint outside the scope of
Younger. See Huffman,
