CARNES, Circuit Judge:
This appeal concerns a maritime worker’s effort to recover from the manufacturer of marine engines for the hearing loss he suffered because of exposure to the noise of those engines during his employment. Plaintiff S. Paul White appeals the district court’s grant of summary judgment in favor of Mercury Marine Division of Brunswick, Inc. (“Mercury Marine”). The district court held that White’s claim was barred by the general maritime statute of limitations, 46 U.S.C.App. § 763a. On appeal, White concedes that he cannot recover for the hearing loss he suffered due to engine noise exposure which occurred outside § 763a’s three-year limitations period. However, he asks us to adopt a “modified continuing tort theory” under which he would not be barred from recovering for the hearing loss suffered due to exposure within the limitations period. For the reasons set out below, we decline to adopt the modified continuing tort theory in general maritime law and affirm the judgment of the district court.
I. FACTS AND PROCEDURAL HISTORY
S. Paul White began his employment with the Florida Marine Patrol (“FMP”) in 1964. As a patrol officer from 1964 to 1984, White spent six to eight hours per day, five days a week, patrolling Florida’s territorial waters in FMP boats. In 1984, White achieved the rank of sergeant, and later he became a lieutenant. In his capacity as a sergeant or lieutenant, White spent as much as half of his work time on land. However, he spent the remainder of his work time in FMP boats. White retired in 1995.
During his thirty-one years as an FMP officer, White patrolled Florida’s waters in several types of boats. One common feature of those boats was that they had Mercury Marine engines. The amount of engine noise exposure depends on a variety of factors, including the size of the engine, its installation, any muffling of the engine, how open the throttle is, and the location of the operator. White’s FMP boats had either 50, 120, 140 or 260 horsepower engines, and the operator was positioned close to the engine. White, as a water patrol officer, was exposed to substantial noise from Mercury Marine’s engines throughout his employment.
Not surprisingly, White now has poor hearing. He wears two hearing aids. Understandably, he attributes his poor hearing to being continuously exposed for more than three decades to the loud noise created by Mercury Marine engines on the boats he operated. The parties agree that White’s hearing is impaired, and they also agree that at least as early as 1984 White became aware that the loud engine noise was causing him hearing loss. In that year, a doctor advised White that his constant exposure to loud engine noise was causing his hearing loss, and that he should wear ear protection.1 Another doctor gave White the same advice in 1988. In 1990 White filed a workman’s compensation claim in which he stated that the constant exposure to engine noise had caused his gradual loss of hearing.
It was not until 1994 that White sued Mercury Marine in federal district court.2 His complaint included claims against Mercury Marine for negligence, strict liability, and breach of the implied warranties of merchantability and fitness for a particular purpose. Mercury Marine deposed White, thereby learning of his long-standing awareness of the cause of his hearing loss. Shortly thereafter, Mercury Marine filed a motion for summary judgment, contending that the [1430]*1430three-year statute of limitations for general maritime claims, 46 U.S.C.App. § 763a, barred White’s claims.
In response, White argued for application of the “modified” continuing tort theory, which is best explained in terms of that which it modifies, the “pure” continuing tort theory. Under the pure version of the continuing tort theory, a cause of action for any of the damages a plaintiff has Buffered does not “accrue” until the defendant’s tortious conduct ceases. See, e.g., Everhart v. Rich’s Inc., 229 Ga. 798, 194 S.E.2d 425, 428 (1972)(holding that the statute of limitations is tolled until the defendant’s continuing tor-tious activity is eliminated). Under the pure continuing tort theory, a plaintiff may recover for all the harm he has suffered, not just that suffered during the limitations period. See Taylor v. Meirick, 712 F.2d 1112, 1118 (7th Cir.1983). By contrast, the modified version of that theory allows recovery for only that part of the injury the plaintiff suffered during the limitations period. Here, that would be the damage to White’s hearing caused by the noise exposure occurring within three years before the lawsuit was filed. Apparently White chose to argue for the modified version of the continuing tort theory instead of the more plaintiff-friendly pure version, because he felt that with the modified version he would have more to work with insofar as the decisions of this Circuit were concerned.
The district court granted Mercury Marine’s motion for summary judgment, holding that the statute of limitations bars White’s claims. The court began its opinion by noting that this ease fell within the admiralty jurisdiction — a point which White does not contest in this Court — and therefore general maritime law applied. The general maritime statute of limitations, 46 U.S.C.App. § 763a, states that a cause of action must be “commenced within three years from the date the cause of action accrued.” Finding no controlling precedent that defines when a cause of action “accrues” under the general maritime law, the court chose to apply the “discovery rule,” which had been applied by the Supreme Court in Urie v. Thompson, 337 U.S. 163, 69 S.Ct. 1018, 93 L.Ed. 1282 (1949), a Federal Employers’ Liability Act case. Because White had discovered his cause of action more than three years before he filed suit, the district court held that White’s cause of action had accrued more than three years before the complaint was filed, therefore, the suit was time-barred. The court entered judgment in favor of Mercury Marine, and White appealed.
II. STANDARD OF REVIEW
This Court reviews a district court’s grant of summary judgment de novo, applying the same legal standard employed by the district court. See, e.g., Fitzpatrick v. City of Atlanta, 2 F.3d 1112, 1117 (11th Cir.1993). Summary judgment is appropriate if the record shows no genuine issue of material fact and that the moving party is entitled to judgment as a matter of law. See, e.g., Eberhardt v. Waters, 901 F.2d 1578, 1580 (11th Cir.1990). When deciding whether summary judgment is appropriate, “all evidence and reasonable factual inferences drawn therefrom” are reviewed in a light most favorable to the non-moving party. Warren v. Crawford, 927 F.2d 559, 562 (11th Cir.1991).
Whether the district court should have applied the modified continuing tort theory or the discovery rule is a question of law, which we decide de novo. See, e.g., Blohm v. Commissioner, 994 F.2d 1542, 1548 (11th Cir.1993).
III. DISCUSSION
The parties agree that White’s claim is governed by general maritime law. See Southern Pacific Co. v. Jensen, 244 U.S. 205, 215, 37 S.Ct. 524, 528, 61 L.Ed. 1086 (1917)(“[I]n the absence of some controlling statute the general maritime law as accepted by the federal courts constitutes part of our national law applicable to matters within the admiralty and maritime jurisdiction.”). However, the general maritime statute of limitations, 46 U.S.C.App. § 763a, offers little specific guidance for choosing between the modified continuing tort theory and the discovery rule. It states:
Unless otherwise specified by law, a suit for recovery of damages for personal inju[1431]*1431ry or death, or both, arising out of a maritime tort, shall not be maintained unless commenced within three years from the date the cause of action accrued.
46 U.S.C.App. § 763a. “Accrue” is the operative word, the marking point that gives the statute its bite. Unfortunately, Congress did not define “accrue,” and thus failed to specify the depth of the bite. Mercury Marine argues that we should define “accrue” by referring to the discovery rule, while White argues that “accrue” as used in § 763a, should encompass the modified continuing tort theory. Neither party’s position finds much support in the word “accrue” itself, which simply means to become enforceable. See Random House Unabridged Dictionary, 13 (2d ed.1993). The dictionary definition of accrue is unhelpful because when White’s claims became legally enforceable, or when they stopped being enforceable, is the issue.
White concedes here, as he did in the district court, that he knew of both his injury and its cause more than three years before he filed suit. If we use the discovery rule to define when White’s cause of action accrued, the statute of limitations bars his suit. If we use the modified continuing tort theory, it does not. This appeal turns on our choice between the two.
A. SUPPLEMENTING GENERAL MARITIME LAW
Before we choose between the discovery rule and the modified continuing tort theory, we address White’s contention that we should “supplement” the general maritime law on this issue with Florida law. The Supreme Court followed the approach of “supplementing” state law for general maritime law purposes in Yamaha Motor Corp., U.S.A. v. Calhoun, — U.S. —, 116 S.Ct. 619, 133 L.Ed.2d 578 (1996). In that case, the Supreme Court held that courts may use state law to supplement the remedies available for wrongful death under the general maritime law. See id., — U.S. at —, 116 S.Ct. at 629. Noting that Congress had not prescribed a comprehensive tort regime to be uniformly applied, the Court reasoned that state remedies were not displaced by maritime law. See id. — U.S. at —, 116 S.Ct. at 628; see also Jerome B. Grubart, Inc. v. Great Lakes Dredge & Dock Co., 513 U.S. 527, 544-47, 115 S.Ct. 1043, 1054, 130 L.Ed.2d 1024 (1995)(holding that the exercise of admiralty jurisdiction “does not result in automatic displacement of state law”). The Yamaha court did, however, reiterate that state laws inconsistent with the substance of federal maritime law should be given no effect. See Yamaha, — U.S. at —, 116 S.Ct. at 624.
Florida has adopted the pure continuing tort theory. See Seaboard Air Line R.R. Co. v. Holt, 92 So.2d 169, 170 (Fla.1956); Halkey-Roberts Corp. v. Mackal, 641 So.2d 445, 447 (Fla.Dist.Ct.App.1994). Whether we may rely on Florida’s adoption of that theory to supplement the general maritime law depends on the two factors outlined in Yamaha: 1) Is the pure continuing tort theory inconsistent with the substance of federal maritime law; and 2) Has Congress prescribed a rule in this area that must be uniformly applied in federal maritime law cases? See Yamaha, — U.S. at —, 116 S.Ct. at 628. The pure continuing tort theory is not inconsistent with the general maritime statute of limitations because the word “accrue” does not embrace or reject it.
However, application of Florida law would contradict the second Yamaha requirement of the absence of congressional action in the area. The very existence of a federal general maritime statute of limitations implies that it should be applied uniformly across the nation. The federal concern with balancing the interests of maritime plaintiffs to obtain redress for their injuries against the interests of defendants and the court system in avoiding the problems caused by stale claims does not vary from state to state. Accordingly, the definition of the federal statutory term “accrue” should not vary based on whether the forum state has adopted a version of the continuing tort theory. See Yamaha, — U.S. at —, n. 8, 116 S.Ct. at 626, n. 8 (“[Sjtate law must yield to the needs of a uniform federal maritime law when [the law makes] inroads on a harmonious system”) (internal citation and quotes omitted); In re Amtrak “Sunset Limited” Train Crash, 121 F.3d 1421, 1424-25 (11th Cir.1997)(noting [1432]*1432that Yamaha did not overrule the “bedrock admiralty principles” of harmony and uniformity in admiralty and maritime law). Thus, we cannot use Florida law to supplement the general maritime statute of limitations in this or any other case, and that would be equally true if Florida had adopted the modified continuing tort theory that White espouses.
B. CONSTRUCTION OF SECTION 763a
Given the ambiguity of the statutory term “accrued,” this would be an appropriate occasion in which to resort to legislative history. See, e.g., United States v. Garcia, 718 F.2d 1528, 1533 (11th Cir.1983) (“Review of legislative history is only justified when a statute is inescapably ambiguous”). However, neither party has pointed us to anything in the legislative history of § 763a that is helpful, nor have we been able to find any guidance there ourselves. Decisional law is a different matter.
Although there is no binding precedent directly on point, we do not write on an entirely clean slate. We have for guidance two Supreme Court decisions interpreting statute of limitations language materially identical to that of § 763a. Those cases, Urie v. Thompson, 337 U.S. 163, 69 S.Ct. 1018, 93 L.Ed. 1282 (1949), and United States v. Kubrick, 444 U.S. 111, 100 S.Ct. 352, 62 L.Ed.2d 259 (1979), involved interpretations of the Federal Employers’ Liability Act (FELA) and Federal Tort Claims Act (FTCA), respectively. Although the general maritime law has been' recognized as a distinct body of federal common law, see In re Air Disaster At Lockerbie Scotland, 37 F.3d 804, 828 (2d Cir.1994), this Court has used precedents from other areas of law to inform its maritime decisions in the past, see, e.g., Flores v. Carnival Cruise Lines, 47 F.3d 1120, 1125 n. 4 (11th Cir.1995).
The first Supreme Court precedent, Urie v. Thompson, construed the FELA language requiring that any lawsuit under the statute be filed “within three years from the day the cause of action accrued.” In that case, a railroad worker sued his employer a year after he had become incapacitated by silicosis. See id., at 165-66, 69 S.Ct. at 1022-23. He had been exposed to silica dust for thirty years before filing suit. The railroad argued that because the worker must have contracted silicosis more than three years before his suit was filed, his cause of action had “accrued” outside of the limitations period, therefore, the suit was barred. See id. at 169, 69 S.Ct. at 1024. The Supreme Court rejected that interpretation of the word “accrued” in favor of the discovery theory of accrual, under which the cause of action accrues on the date the worker first knew or should have known of his injury and its cause. See id. at 170, 69 S.Ct. at 1025 (citing Associated Indemnity Corp. v. Industrial Accident Comm’n, 124 Cal.App. 378, 12 P.2d 1075, 1076 (Cal.Dist.Ct.App.1932)).
The Urie court explained that adopting an actual occurrence or onset theory of accrual would punish the worker’s “blameless ignorance” in ways that the FELA’s “humane legislative plan” never intended. See id. Indeed, it would result in the FELA providing nothing more than a “delusive remedy” for occupational illnesses that have a slow and gradual onset from accumulated exposure. In the actual case before it, for example, the initial onset theory would mean that “at some past moment in time, 'unknown and inherently unknowable even in retrospect, Urie was charged with the slow and tragic disintegration of his lungs,” and his “failure to diagnose within the applicable statute of limitations a disease whose symptoms had not yet obtruded on his consciousness” would bar any recovery. Id. at 169, 69 S.Ct. at 1024.
The railroad contended alternatively that each inhalation of silica dust was a separate tort giving rise to a fresh cause of action. See id. Therefore, it argued, Urie’s recovery should be limited to the damages caused by the dust he inhaled during the three years preceding his suit. The Supreme Court rejected that argument. Considering the overall purpose of the Federal Employer’s Liability Act, the court stated:
mechanical analysis of the “accrual” of [Urie’s] injury — whether breath by breath, or at one unrecorded moment in the progress of the disease — can only serve to thwart the congressional purpose [of including occupational diseases in the category of compensable injuries]
[1433]*1433Id. The. Court criticized the “breath by-breath” measurement of accrual, because it would “limit petitioner’s damages to that aggravation of his progressive injury traceable to the last eighteen months of his employment.” Id. at 170, 69 S.Ct. at 1024.
The modified continuing tort theory the petitioner urges us to adopt today is little more than the modern equivalent of the “breath by breath” theory that Urie rejected. Under the modified continuing tort theory a plaintiff may recover damages for any increase in injury caused by the defendant within the limitations period, even though he “discovered” his injury before the limitations period. See Santiago v. Lykes Bros. S.S. Co., Inc., 986 F.2d 423, 428 (11th Cir.1993).3
Faced with the similarity between the old “breath by breath” theory rejected in Urie and the modified continuing tort theory he favors, White argues that the reason the Supreme Court rejected the breath by breath theory in Urie was that it unfairly limited the plaintiffs recovery under the facts of that case, while application of the materially identical modified continuing tort theory will permit this plaintiff to recover. However, the discovery rule, as a rule of law, is not to be applied only when it will benefit a plaintiff. It protects plaintiffs who are unaware of their injury, while requiring those plaintiffs who have “discovered” their injury to file suit within the prescribed period. It, like the statute of limitations in general, is a neutral balancing of interests, which must be neutrally applied regardless of the party it benefits in a particular case. That point is illustrated by the Kubñck decision, which applied the discovery rule to the detriment of the plaintiff in that case.
In United States v. Kubrick, 444 U.S. 111, 113, 100 S.Ct. 352, 354-55, 62 L.Ed.2d 259 (1979), the Supreme Court was faced with the task of construing the Federal Tort Claims Act statute of limitations, which barred any claim not presented to the proper federal agency “within two years after such claim accrues.” The issue in Kubñck was whether a claim “accrues” when the plaintiff knows of both his injury and its cause, but does not know that the injury was negligently inflicted. See id. at 116, 100 S.Ct. at 356. The Supreme Court rejected the contention that a plaintiff must know of a tortfeasor’s negligence before a cause of action will accrue. Id. at 122, 100 S.Ct. at 359. The Court reasoned that plaintiffs who are armed with the facts about the harm they have suffered, namely their injury and its cause, are able to protect themselves by seeking advice in the medical and legal communities. Id. at 123, 100 S.Ct. at 360. The Supreme Court applied the discovery rule in Kubñck, as it did in Urie, and refined that rule to clarify that discovery of the injury and its cause — and not the realization that a cause of action exists — marks the date the limitations period starts running. As it happened, under the facts of that case, the discovery rule operated to bar the plaintiffs lawsuit, because he had been aware of his injury and its cause for more than two years before he [1434]*1434presented a claim. See id. at 118-125, 100 S.Ct. at 357-61.
In its Kubrick opinion, the Supreme Court noted that statutes of limitations often bar perfectly valid claims, and indeed “that is their very purpose.” Id. at 125, 100 S.Ct. at 361. They exist as statutes of repose which, after plaintiffs have had what the legislature deems a reasonable period of time to bring claims, “protect defendants and the courts from having to deal with eases in which the search for truth may be seriously impaired by the loss of evidence, whether by death or disappearance of witnesses, fading memories, disappearance of documents, or otherwise.” Id. at 117, 100 S.Ct. at 357. The importance legislatures have accorded the interests protected by civil statutes of limitations is evident from the fact that they are as ubiquitous as the rights whose vindication they condition upon timely assertion.
So, twice the Supreme Court has been presented with federal statute of limitations language materially identical to that in the general maritime statute of limitations, and twice the Supreme Court has held that courts should use the discovery rule to determine when a cause of action accrues. It is a familiar canon of statutory construction that courts should generally construe similar statutory language similarly. See, e.g., EEOC v. Reno, 758 F.2d 581, 583-84 (11th Cir.1985)(finding that because provisions of the Age Discrimination in Employment Act “were taken in haec verba from Title VII, decisions under the analagous section of Title VII[are] highly relevant to the issue before [the Court]”); cf. also Knight v. Georgia, 992 F.2d 1541, 1545 (11th Cir.1993)(using substantial body of case law from another, similar provision of the Age Discrimination in Employment Act to guide the interpretation of the operative provision); Bodzy v. Commissioner, 321 F.2d 331, 335 (5th Cir.1963)(holding that “provisions of the Internal Revenue Code should be interpreted similarly where similar language is used”). We see no good reason to give the term “accrue” as Congress used it in the general maritime statute of limitations a different meaning from that the Supreme Court gave the identical term when Congress used it in the FELA and FTCA statutes.
Furthermore, it could be argued that Congress has tacitly accepted the Supreme Court’s construction of the word “accrue.” Congress has amended neither the FELA nor the FTCA since the Supreme Court decided Urie and Kubrick. True, it is always treacherous to try to divine congressional intent from silence. As one court has aptly put it, “[n]ot every silence is pregnant.” State of Illinois Dept. of Public Aid v. Schweiker, 707 F.2d 273, 277 (7th Cir.1983). “In some cases, Congress intends silence to rule out a particular statutory application, while in others Congress’ silence signifies merely an expectation that nothing more need be said in order to effectuate the relevant legislative objective. An inference drawn from congressional silence certainly cannot be credited when it is contrary to all other textual and contextual evidence of congressional intent.” Burns v. United States, 501 U.S. 129, 136, 111 S.Ct. 2182, 2186, 115 L.Ed.2d 123 (1991). However, such an inference is not contrary to any evidence of congressional intent here. The inference that Congress did not disapprove use of the discovery rule to define accrual for purposes of federal statutes of limitations is perhaps strengthened by the penultimate sentence of the Kubrick opinion. There, the Supreme Court practically invited Congress to set things right if the Court had misjudged the legislative intent on the matter; it did so by noting that Congress had the ultimate power to change the meaning of “accrue.” See Kubrick at 127, 100 S.Ct. at 361. Nearly two decades have passed, and Congress has not exercised that power.
Congress passed the general maritime statute of limitations — using the word “accrue” — in 1980, which was after both Urie and Kubrick were decided. Congress’ continued use of the term “accrue,” without even the slightest indication of disagreement with those two decisions, suggests that Congress tacitly accepted the Court’s interpretation, or at least was not noticeably upset with it. After all, Congress is assumed to act with the knowledge of existing law and interpretations when it passes new legislation. See Merrill [1435]*1435Lynch, Pierce, Fenner & Smith v. Curran, 456 U.S. 353, 382, n. 66, 102 S.Ct. 1825, 1841, n. 66, 72 L.Ed.2d 182 (1982). We presume that Congress “expects its statutes to be read in conformity with [Supreme Court] precedents.” United States v. Wells, — U.S. —, —, 117 S.Ct. 921, 929, 137 L.Ed.2d 107 (1997).
Finally, we note that in the past we have adopted the discovery rule where Congress has failed to enact a statute of limitations to govern various federal causes of action. See Bowling v. Founders Title Co., 773 F.2d 1175, 1178 (11th Cir.1985)(holding that the discovery rule applies to civil RICO claims); Durham v. Business Management Assoc., 847 F.2d 1505, 1508 (11th Cir.1988)(same as to securities claims); Mullinax v. McElhenney, 817 F.2d 711, 716 at n. 2 (11th Cir.1987)(same as to 28 U.S.C. § 1983 claims). In Bowling v. Founders Title Co., we noted that while state statutes of limitations set the limitations period for civil RICO claims, the time of accrual was governed by federal law. See Bowling, 773 F.2d at 1178 citing Rawlings v. Ray, 312 U.S. 96, 61 S.Ct. 473, 85 L.Ed. 605 (1941). In that ease, we chose consistency in the application of the “general federal rule” — the discovery rule — over a rule similar to the “pure” continuing tort theory. See id. (“[Adopting the discovery rule] is consistent with our practice in related fraud and securities cases”).
For all of these reasons, we hold that a cause of action “accrues” for the purposes of 46 U.S.C.App. § 763a when the plaintiff knew or should have known of his injury and its cause. Because it is undisputed that White knew more than three years before he filed suit that his loss of hearing was caused by exposure to the loud engine noise, the district court correctly held that his lawsuit was barred by the statute of limitations.
IV. CONCLUSION
The judgment of the district court is AFFIRMED.