18 CITIZENS UNITED v. FEDERAL ELECTION COMM’N Opinion of the Court complex rules” on “71 distinct entities.” Brief for Seven Former Chairmen of FEC et al. as Amici Curiae 11–12. These entities are subject to separate rules for 33 different types of political speech. Id., at 14–15, n. 10. The FEC has adopted 568 pages of regulations, 1,278 pages of ex planations and justifications for those regulations, and 1,771 advisory opinions since 1975. See id., at 6, n. 7. In fact, after this Court in WRTL adopted an objective “ap peal to vote” test for determining whether a communica tion was the functional equivalent of express advocacy, 551 U. S., at 470 (opinion of ROBERTS, C. J.), the FEC adopted a two-part, 11-factor balancing test to implement WRTL’s ruling. See 11 CFR §114.15; Brief for Wyoming Liberty Group et al. as Amici Curiae 17–27 (filed Jan. 15, 2009). This regulatory scheme may not be a prior restraint on speech in the strict sense of that term, for prospective speakers are not compelled by law to seek an advisory opinion from the FEC before the speech takes place. Cf. Near v. Minnesota ex rel. Olson, 283 U. S. 697, 712–713 (1931). As a practical matter, however, given the complex ity of the regulations and the deference courts show to administrative determinations, a speaker who wants to avoid threats of criminal liability and the heavy costs of defending against FEC enforcement must ask a govern mental agency for prior permission to speak. See 2 U. S. C. §437f; 11 CFR §112.1. These onerous restrictions thus function as the equivalent of prior restraint by giving the FEC power analogous to licensing laws implemented in 16th- and 17th-century England, laws and governmen tal practices of the sort that the First Amendment was drawn to prohibit. See Thomas v. Chicago Park Dist., 534 U. S. 316, 320 (2002); Lovell v. City of Griffin, 303 U. S. 444, 451–452 (1938); Near, supra, at 713–714. Because the FEC’s “business is to censor, there inheres the danger that [it] may well be less responsive than a court—part of

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