WILSON, Circuit Judge:

Coleman Jackson appeals the district court's order granting in part and denying in part his motion for attorney's fees and his supplemental application for attorney's fees pursuant to 42 U.S.C. § 1988(b), and the Prison Litigation Reform Act of 1995 (PLRA), 42 U.S.C. § 1997e(d). Jackson contends that § 1997e(d) does not govern his motion for attorney's fees and his supplemental application for attorney's fees, because his 42 U.S.C. § 1983 action challenged the length of his confinement and not "prison conditions" within the meaning of § 1997e(a). Alternatively, he contends that § 1997e(d) violates his right to equal protection under the due process clause of the Fifth Amendment. The State Board of Pardons and Paroles cross-appeals, contending that the court erroneously awarded Jackson fees-on-fees, or attorney's fees incurred in the course of litigating his petition for attorney's fees. These three arguments present issues of first impression in this Circuit. For the reasons set forth below, we affirm.

BACKGROUND

On August 4, 1999, Jackson was convicted of aggravated assault and sentenced to twenty years of imprisonment with five years to serve in prison and fifteen years of probation. As of August 25, 1996, the date Jackson committed the assault, a prisoner convicted of aggravated assault was required to serve a minimum of one-third of his prison term before becoming eligible for a parole hearing before the board. See O.C.G.A. § 42-9-45(f). On December 9, 1997, however, the board amended its policy to provide that a prisoner convicted on or after January 1, 1998 of certain crimes, including aggravated assault, must serve a minimum of ninety percent of his term before becoming eligible for a parole hearing. The board applied its ninety-percent policy retroactively — that is, the board applied the new policy to all convictions entered on or after January 1, 1998 even if the underlying criminal conduct occurred before January 1, 1998. Thus, under the new policy, the board postponed the date of Jackson's initial parole eligibility hearing.

After his requests to reconsider his parole eligibility were denied twice by the board and once by Georgia's Superior Courts Sentence Review Panel, Jackson filed a joint motion for a writ of habeas corpus pursuant to 28 U.S.C. § 2241 and a complaint for damages pursuant to § 1983. He alleged that by applying the new policy to his offense the board retroactively increased his punishment in violation of the Ex Post Facto Clause of the United States Constitution. The magistrate judge recommended that the district court dismiss his habeas corpus petition without prejudice for lack of exhaustion of administrative remedies, dismiss his claim for damages under § 1983, and permit his claim for equitable relief under § 1983 to proceed. Jackson subsequently filed objections to the report and recommendation and incorporated a motion for equitable judgment therein.

The district court adopted the magistrate judge's report and recommendation and, after conducting an evidentiary hearing, granted Jackson's motion for equitable judgment, permanently enjoined the board from enforcing the new policy against Jackson, and ordered the board to provide Jackson with an initial parole eligibility hearing within forty-five days of the order. As a result, the board held a hearing and subsequently notified the court that it granted Jackson parole.

Thereafter, pursuant to § 1988(b), Jackson filed the instant motion for attorney's fees in the amount of $34,875 and costs in the amount of $335.21, for a total award of $35,210.21. The board objected to his motion and asserted that because Jackson filed a § 1983 claim "with respect to prison conditions," 42 U.S.C. § 1997e(a), the motion for attorney's fees and costs should be governed by § 1997e(d) of the PLRA. Thereafter, Jackson filed a reply brief and a supplemental application for attorney's fees incurred while litigating the underlying motion in the amount of $2375.

The district court concluded that (1) § 1997e governed Jackson's underlying § 1983 claim and thus his motion for attorney's fees, because the underlying claim challenged "prison conditions" within the meaning of § 1997e(a); (2) § 1997e(d)'s fees restrictions do not violate the equal protection component of the Fifth Amendment; and (3) § 1997e(d) permits a prevailing plaintiff to recover fees-on-fees. Thus, pursuant to § 1988 and § 1997e(d), the court granted in part and denied in part Jackson's motion for attorney's fees and costs and his supplemental application for attorney's fees. Jackson appeals the court's application of § 1997e(d) to his motion for attorney's fees and his supplemental application for attorney's fees, and the board cross-appeals, challenging Jackson's supplemental attorney's fees award as impermissible fees-on-fees. See id. § 1997e(d)(1)(A) (prohibiting attorney's fees that are not "directly and reasonably incurred in proving an actual violation of the plaintiff's rights").

DISCUSSION I. Applicability of § 1997e(d)

Under § 1988(b), a district court may, in its discretion, award reasonable attorney's fees to a successful § 1983 plaintiff. See id. § 1988(b). Accordingly, neither party disputes that, as a successful § 1983 plaintiff, Jackson may receive reasonable attorney's fees under § 1988. See id. The parties disagree, however, on the applicability of § 1997e(d) to Jackson's underlying § 1983 claim and thus his motion for attorney's fees. See id. § 1997e(d)(1) (restricting attorney's fees awards authorized under § 1988 "[i]n any action brought by a prisoner"). Jackson contends that § 1997e(d) is not applicable to his motion for attorney's fees, because his § 1983 action challenged the length of his confinement and not "prison conditions" within the meaning of § 1997e(a). The board alleges that because Jackson's § 1983 action was "brought by a prisoner," § 1997e(d) is applicable to his motion for attorney's fees.

"We begin our construction of section 1997e[(d)] where courts should always begin the process of legislative interpretation, and where they often should end it as well, which is with the words of the statutory provision." Harris v. Garner, 216 F.3d 970, 972 (11th Cir. 2000) (en banc), cert. denied, 532 U.S. 1065, 121 S.Ct. 2214, 150 L.Ed.2d 208 (2001). Section 1997e(d) provides,

(1) In any action brought by a prisoner who is confined to any jail, prison, or other correctional facility, in which attorney's fees are authorized under [ 42 U.S.C. §] 1988 . . ., such fees shall not be awarded, except to the extent that —

(A) the fee was directly and reasonably incurred in proving an actual violation of the plaintiff's rights protected by a statute pursuant to which a fee may be awarded under section 1988 . . . and

(B)(i) the amount of the fee is proportionately related to the court ordered relief for the violation; or

(ii) the fee was directly and reasonably incurred in enforcing the relief ordered for the violation.

42 U.S.C. § 1997e(d)(1)(A)-(B) (footnotes omitted) (emphasis added). Here, we must determine the meaning of the phrase "any action brought by a prisoner" to decide whether § 1997e(d) applies to Jackson's underlying § 1983 action and thus his motion for attorney's fees and his supplemental application for attorney's fees.

"In the absence of a statutory definition of a term, we look to the common usage of words for their meaning." CBS Inc. v. PrimeTime 24 Joint Venture, 245 F.3d 1217, 1222 (11th Cir. 2001) (internal quotation marks omitted). Often, courts look to dictionary definitions to ascertain the common usage of words. Id. at 1223. The dictionary definition of the word "action" is "a legal proceeding by which one seeks to have a wrong put right; lawsuit." Webster's New World College Dictionary 14 (Michael Agnes et al. eds., 4th ed. 1999); see also Black's Law Dictionary 28 (Bryan A. Garner et al. eds., 7th ed. 1999) (defining "action" as "[a] civil or criminal judicial proceeding").

Furthermore, Congress chose "an expansive modifier — the word `any' — instead of a restrictive one." CBS Inc., 245 F.3d at 1223; see also United States v. Gonzales, 520 U.S. 1, 5, 117 S.Ct. 1032, 137 L.Ed.2d 132 (1997) ("Read naturally, the word `any' has an expansive meaning. . . ."). We previously stated that "the adjective any is not ambiguous; it has a well-established meaning." Lyes v. City of Riviera Beach, 166 F.3d 1332, 1337 (11th Cir. 1999) (en banc) (internal quotation marks omitted). Therefore, without any language to limit the significance of this modifier, "any means all." CBS Inc., 245 F.3d at 1223 (internal quotation marks omitted). Hence, the phrase "any action" covers a lawsuit challenging the length of an inmate's confinement.

Additionally, we have held that the term "brought," as used in subsections (a) and (e) of § 1997e, means filed. See Harris, 216 F.3d at 974 (interpreting the term "brought" as used in § 1997e(e)'s "[n]o federal civil action shall be brought" language to mean filed); Miller v. Tanner, 196 F.3d 1190, 1193 (11th Cir. 1999) (interpreting the term "brought" as used in § 1997e(a)'s "[n]o action shall be brought" language to mean filed). Normally, identical words that appear in various parts of the same act are meant to have the same meaning. See Atl. Cleaners Dyers v. United States, 286 U.S. 427, 433, 52 S.Ct. 607, 76 L.Ed. 1204 (1932) ("[T]here is a natural presumption that identical words used in different parts of the same act are intended to have the same meaning."). Thus, the term "brought" as used in § 1997e(d)'s "[i]n any action brought" language means filed. See 42 U.S.C. § 1997e(d)(1).

Finally, we need not resort to common usage to determine the meaning of the term "prisoner" in § 1997e(d), because Congress defined that term as it is used within § 1997e as follows: "any person incarcerated or detained in any facility who is accused of, convicted of, sentenced for, or adjudicated delinquent for, violations of criminal law." 42 U.S.C. § 1997e(h). As Jackson was convicted of aggravated assault and sentenced to twenty years of imprisonment, he is a prisoner within the meaning of § 1997e(h).

Therefore, it is apparent that § 1997e(d)'s phrase "any action brought by a prisoner" means all lawsuits that are filed by a prisoner and is not restricted to lawsuits challenging "prison conditions" that are filed by a prisoner. Accordingly, § 1997e(d) applies to Jackson's underlying § 1983 action and thus his motion for attorney's fees and his supplemental application for attorney's fees.

II. Equal Protection

Jackson contends that § 1997e(d) violates his right to equal protection under the Fifth Amendment by restricting the attorney's fees awards of prisoners while permitting other litigants to recover full attorney's fees awards. Although we previously have not addressed the constitutionality of § 1997e(d), several of our sister circuits have addressed this issue and found § 1997e(d) in its entirety, or its various subsections, constitutional. See Foulk v. Charrier, 262 F.3d 687, 704 (8th Cir. 2001) (concluding that § 1997e(d)(2) survives rational basis review); Walker v. Bain, 257 F.3d 660, 670 (6th Cir. 2001) (concluding the same), cert. denied, 535 U.S. 1095, 122 S.Ct. 2291, 152 L.Ed.2d 1050 (2002); Hadix v. Johnson, 230 F.3d 840, 847 (6th Cir. 2000) (concluding that § 1997e(d)(3) survives rational basis review); Boivin v. Black, 225 F.3d 36, 46 (1st Cir. 2000) (concluding that § 1997e(d)(2) survives rational basis review); Madrid v. Gomez, 190 F.3d 990, 995-96 (9th Cir. 1999) (finding that § 1997e(d) passes constitutional muster). But see Collins v. Montgomery County Bd. of Prison Inspectors, 176 F.3d 679, 686 (3d Cir. 1999) (en banc) (declining to rule upon the constitutionality of § 1997e(d)(3) because the court was divided equally on the issue). We conclude, like our sister circuits, that § 1997e(d) is constitutional.

Generally speaking, "legislation is presumed to be valid and will be sustained if the classification drawn by the statute is rationally related to a legitimate [governmental] interest." City of Cleburne v. Cleburne Living Ctr., 473 U.S. 432, 440, 105 S.Ct. 3249, 87 L.Ed.2d 313 (1985). The level of scrutiny is heightened, however, "[i]f a fundamental right or a suspect class is involved." Gary v. City of Warner Robins, 311 F.3d 1334, 1337 (11th Cir. 2002). As prisoners are not a suspect class, heightened scrutiny is not warranted on that basis. Rivera v. Allin, 144 F.3d 719, 727 (11th Cir. 1998). Jackson contends, however, that § 1997e(d)'s attorney's fees restrictions violate the fundamental right of access to the courts by discouraging attorneys from taking prisoners' civil rights cases.

Without question, "prisoners have a constitutional right of access to the courts." Bounds v. Smith, 430 U.S. 817, 821, 97 S.Ct. 1491, 52 L.Ed.2d 72 (1977). To have standing to seek relief under this right, however, a plaintiff must show actual injury by "demonstrat[ing] that a non-frivolous legal claim ha[s] been frustrated or . . . impeded." Lewis v. Casey, 518 U.S. 343, 353, 116 S.Ct. 2174, 135 L.Ed.2d 606 (1996) (footnote omitted). As Jackson was represented by counsel and was successful in his § 1983 action, he does not have standing to seek relief under the right of access to the courts. See Boivin, 225 F.3d at 43 n. 5 (noting that a prisoner who was represented by counsel and won his claim did not have standing to seek relief under the right of access to the courts). Thus, Jackson has not demonstrated a violation of a fundamental right, and, therefore, heightened scrutiny is not warranted on that basis.

As § 1997e(d) does not involve a suspect class nor infringe upon a fundamental right, we review its constitutionality under the rational basis test. See Gary, 311 F.3d at 1338. Under rational basis review, a classification within a statute "is accorded a strong presumption of validity," and we must uphold the statute "if there is any reasonably conceivable state of facts that could provide a rational basis for the classification." Heller v. Doe ex rel. Doe, 509 U.S. 312, 319-20, 113 S.Ct. 2637, 125 L.Ed.2d 257 (1993) (internal quotation marks omitted). The government is not required to provide evidentiary support for its classifications and may rely upon conjecture. Hadix, 230 F.3d at 843. Thus, Jackson bears the heavy burden of "negati[ng] every conceivable basis which might support [the statute], whether or not the basis has a foundation in the record." Rodriguez ex rel. Rodriguez v. United States, 169 F.3d 1342, 1350 (11th Cir. 1999) (internal quotation marks omitted).

Under this highly deferential standard, we conclude that § 1997e(d) survives rational basis review. Apparently, by enacting § 1997e(d), Congress intended to decrease "marginal or trivial lawsuits." Hadix, 230 F.3d at 845; see also Walker, 257 F.3d at 668-69; Boivin, 225 F.3d at 45; Madrid, 190 F.3d at 996. Before the fee cap, there was nothing to dissuade attorneys from "adopt[ing] a `shotgun' approach, filing numerous claims in the hopes that at least a minor violation would likely be found, [thus] assuring the recovery of attorneys fees." Hadix, 230 F.3d at 845. By lowering the fees recoverable for a successful claim, "a rational attorney [is likely to] demand a greater likelihood of success before taking a prisoner's case." Id.

Additionally, by decreasing frivolous claims, "Congress could also . . . be seeking to protect the state and federal treasuries, from which the majority of prisoner civil rights awards are paid." Id. In light of the "shotgun" approach many attorneys utilized before the fee cap, "Congress could have rationally concluded that [such] prisoner civil rights litigation leads to attorney fees which are often disproportionate to the harm or injury. Thus, by reducing the number of marginal, albeit meritorious claims, some government resources would be preserved." Walker, 257 F.3d at 669.

As Jackson has failed "to negat[e] every conceivable basis which might support" § 1997e(d), we must conclude that § 1997e(d) survives rational basis review. Rodriguez, 169 F.3d at 1350 (internal quotation marks omitted).

III. Fees-on-Fees

On cross-appeal, the board contends that the district court erred in awarding Jackson fees-on-fees, because the fees-on-fees were not "directly and reasonably incurred in proving an actual violation" of Jackson's rights. 42 U.S.C. § 1997e(d)(1)(A). Although we have not addressed whether § 1997e(d)(1) permits a prevailing § 1983 plaintiff to recover fees-on-fees, the Third and Fifth Circuits have concluded that fees-on-fees are recoverable under § 1997e(d)(1). See Volk v. Gonzalez, 262 F.3d 528, 536 (5th Cir. 2001); Hernandez v. Kalinowski, 146 F.3d 196, 200-01 (3d Cir. 1998). We agree.

Section 1988(b) permits reasonable attorney's fees "[i]n any action or proceeding to enforce a provision of section . . . 1983," 42 U.S.C. § 1988(b), and § 1997e(d)(1)(A) permits attorney's fees for "proving an actual violation of the plaintiff's rights," id. § 1997e(d)(1)(A). It is well-settled that fees-on-fees are permitted under § 1988 even though Congress did not explicitly provide for fees-on-fees therein. Hernandez, 146 F.3d at 200; see also Jonas v. Stack, 758 F.2d 567, 568 (11th Cir. 1985) ("[A] prevailing party's counsel is entitled to reasonable compensation when he litigates his own claim for entitlement to § 1988 fees."). As Congress has not "express[ed] an intent to change th[is] established construction," we will continue to follow that construction. Volk, 262 F.3d at 536 (internal quotation marks omitted).

Therefore, as § 1988(b)'s language permitting fees-on-fees does not differ significantly from § 1997e(d)(1)(A)'s language, we join our sister circuits in concluding that fees-on-fees are recoverable under § 1997e(d). See id.; Hernandez, 146 F.3d at 200-01.

CONCLUSION

Thus, we conclude that § 1997e(d) applies to Jackson's underlying § 1983 action and thus his motion for attorney's fees and his supplemental application for attorney's fees. Furthermore, we find that § 1997e(d)'s attorney's fees restrictions survive rational basis review. Finally, we conclude that fees-on-fees are recoverable under § 1997e(d)(1)(A). Accordingly, we AFFIRM.