On June 28, 2000, William S. Mix (“Mix”) filed an action against his employer, the Delaware and Hudson Railway Company, Inc., d/b/a CP Rail System (“D & H Railway”), pursuant to the Federal Employers’ Liability Act, 45 U.S.C. § 51 et seq., for hearing loss he allegedly suffered during the course of his employment, between September 1973 and April 2000. The United States District Court for the Northern District of New York (Norman A. Mordue, District Judge) granted summary judgment to D & H Railway on the basis that Mix’s suit was barred by the statute of limitations. Specifically, the district court found that Mix knew, or should have known, of his hearing loss and its cause prior to June 28, 1997, the earliest date upon which his cause of action could have accrued to fall within the three-year statute of limitations period. The district court also held that the continuing tort doctrine does not toll the statute of limitations in FELA cases. Mix now appeals that judgment.
BACKGROUND
Between September 1973 and April 2000, Mix worked for D & H Railway at various railway yards as a laborer, trainer, *85 qualified conductor, and engineer. In November 1993, Mix consulted an otolaryn-gologist, Dr. Leonard Newton, concerning “ringing” in his ears. Mix concedes that, according to Dr. Newton’s notes, he “complained of reduced hearing for some period of time and that it was especially notable in high pitches during the past 2-3 years.” Mix also concedes that Dr. Newton’s notes reported “a chronic problem with tinnitus, or ringing in his ears, which was occurring 95% of the time.” Finally, Mix concedes that “the history notes that [he] was exposed to loud noises for years as the result of his employment with the railroad.” During his deposition, Mix testified that he initially noticed the ringing and said, “[a]f-ter that my hearing just progressively got worse to the point where I’m at today.” In response to the question, “At [the] time [you consulted Dr. Newton] did you have some belief that the ringing in your ear[s] and any problems you were having were related to your work?,” Mix answered, “I’m going to say yes, it just kept getting worse.” Moreover, Mix testified that Dr. Newton told him that he had a hearing problem.
In August 1994, Mix completed a medical history questionnaire when he renewed his engineer’s license. In response to the question, “Have you ever worked on a noisy job?,” Mix checked the “Yes” box and wrote “22 years [with the] Railway.” In response to the question, “Have you ever been told or noticed you are hard of hearing?,” Mix checked the “Yes” box and wrote “Both.” 1 In response to the question, “Do you have any ringing or buzzing in your ears?,” Mix checked the “Yes” box and wrote “Constant.” During his deposition, Mix testified that when he wrote that he was hard of hearing, he meant that he was constantly having trouble understanding his wife. However, he testified that his answer on the application was an accurate statement. He also testified that his wife told him “all the time” that he was having trouble hearing.
Between 1993 and 2000, Mix underwent annual hearing exams administered by both his employer and the State of New York. Mix testified that he generally did not receive the results of these hearing tests. In 1997, D & H Railway’s representative called Mix to inform him that he had failed the hearing test. However, the representative subsequently called him back to inform him that her prior call was a mistake and that he should “forget that she had even called.” Mix testified during his deposition that at the time of this call, he “was having the ringing, having a problem hearing,” which progressively worsened. Mix continued to work for D & H Railway until April 2000, when he failed his most recent hearing exam and was dismissed from his position.
Mix filed the instant suit June 28, 2000, pursuant to the Federal Employers’ Liability Act, 45 U.S.C. § 51 et seq. (“FELA”). Mix alleged that his hearing loss was caused by his exposure to noisy working conditions and that D & H Railway did not provide him with a reasonably safe working environment. Mix alleged that although D & H Railway required employees to wear earplugs in certain noisy areas, D & H Railway should have instructed employees to wear earplugs throughout the entire railroad yard. Mix alleged that D & H Railway failed to make earplugs available at all times during his employment and that he complained to management when they were not available. Mix also alleged that he suffered hearing *86 damage, despite the fact that he generally wore ear protection while working as an engineer.
The United States District Court for the Northern District of New York (Norman A. Mordue, District Judge) granted summary judgment to D & H Railway on the basis that Mix’s suit was barred by the statute of limitations. Specifically, the district court found that Mix knew, or should have known, of his hearing loss and its cause prior to June 28, 1997, the earliest date upon which his cause of action could have accrued to fall within the three-year statute of limitations period. The district court also held that the continuing tort doctrine does not toll the statute of limitations in FELA cases. Mix now appeals that judgment.
LEGAL STANDARDS
The Federal Employers’ Liability Act provides that “[n]o action shall be maintained ... unless commenced within three years from the day the cause of action accrued.” 45 U.S.C. § 56. With respect to “gradual injuries” — those which occur gradually, over long periods of time, due to ongoing exposure to harmful working conditions — the Supreme Court has adopted a “discovery rule” and held that the FELA statute of limitations accrues when the injury “manifest[s]” itself, taking into account whether the plaintiff “should have known” of his injury.
Urie v. Thompson,
DISCUSSION
I. Mix’s Injuries Prior to June 28, 1997
We affirm the district court’s decision to grant summary judgment to D & H Railway, to the extent that Mix’s claim seeks to recover for injuries he suffered prior to June 28, 1997. The undisputed facts establish that Mix knew, or should have known, of the existence of his injury prior to that date. Mix consulted Dr. Newton in November 1993, and he concedes that the doctor’s notes indicate that he “complained of reduced hearing for some period of time.” Less than one year later, Mix completed an application to renew his engineer’s license. In response to the question, “Have you ever been told or noticed you are hard of hearing?,” Mix checked the “Yes” box and wrote “Both.” During his deposition, Mix testified that he initially noticed ringing in his ears, prompting his visit to Dr. Newton in 1993, after which his “hearing just progressively got worse.”
*87 Mix argues that he consulted Dr. Newton for a distinct injury. Specifically, he argues that “[t]he problems with tinnitus and hearing loss are separate and distinct medical conditions.” Even accepting the purported distinction between tinnitus and hearing loss, the record reflects that Mix complained of “hearing loss” prior to June 28, 1997. Specifically, he complained of “reduced hearing” to Dr. Newton in 1993 and admitted to being “hard of hearing” in 1994. He also testified that his hearing “progressively got worse” after his initial visit to Dr. Newton.
Mix also argues that he provided contradictory testimony concerning when he had notice of his hearing loss. He cites only one portion of his deposition transcript in which he said the following:
Q. Do you remember telling the healthcare provider back in 1994 that you had been told that you were hard of hearing or that you’ve noticed being hard of hearing?
A. Yes, my wife tells me all the time.
Q. What about back in 1994, were you aware of it then?
A. Somewhat, not to the extent that it is right now.
Q. When you say, “somewhat,” you had noticed that you were hard of hearing back in 1994?
A. This is — how can I put this? This is like my wife, she’s constantly saying things to me and I misunderstand what she’s saying.
However, none of this testimony contradicts evidence that Mix knew, or should have known, of his hearing loss prior to June 28, 1997. Rather, it supports the district court’s conclusion on this issue. Mix admitted that his wife told him as early as 1994 that he was “hard of hearing.” Mix also admitted that, as early as 1994, he was “somewhat” aware of his hearing loss.
Finally, Mix argues that “[t]he record of that office visit makes no mention whether hearing loss was objectively diagnosed or that any actual findings were documented.” Regardless of whether he received an actual diagnosis, undisputed facts indicate that Mix knew that he was having problems with his hearing. The fact that Mix may not have had actual knowledge of his medical diagnosis would not relieve him of his duty of exercising due diligence based upon strong indications that he did, in fact, have an injury.
There is also no genuine issue of material fact that Mix knew, or should have known, that his hearing loss was caused by noisy conditions at his workplace. Mix testified that at the time he consulted Dr. Newton, he had “some belief’ that his hearing problems were related to his work. Specifically, Mix testified as follows:
Q. At that time did you have some belief that the ringing in your ear[s] and any problems you were having were related to your work?
A. I’m going to say yes, it just kept getting worse.
Mix recognized the need to wear earplugs in noisy areas. He testified that the noise levels at the railroad yard were so high that all employees should have been required to wear earplugs in every area. Moreover, he testified that he complained to management when earplugs were not available. Thus, the record is clear that Mix recognized the connection between his noisy working conditions and his hearing loss.
In sum, based upon uncontroverted facts, there can be no dispute that Mix knew, or should have known, of both the existence and cause of his injury prior to June 28, 1997. On this basis, we affirm the district court’s decision to grant summary judgment to D & H Railway on *88 Mix’s claim, to the extent that he seeks to recover for injuries he suffered prior to that date.
II. Mix’s Injuries Between June 28, 1997, and June 28, 2000
We now join other circuits in considering whether a plaintiff complaining of a gradual injury may assert a cause of action based upon injuries sustained during the three-year period preceding the filing of his FELA claim. Despite the apparent simplicity of the discovery rule, its application does not necessarily function effectively in the context of gradual injuries. Unlike traumatic injuries, the existence and causes of gradual injuries are often elusive. Whereas a longshoreman whose leg is crushed by a container shipment immediately knows of both the existence and cause of his injury, a white-collar worker who feels slight, intermittent pain in her wrist may not know for many years that she has carpal tunnel syndrome as a result of her working conditions. Even a plaintiff who is aware of the existence and cause of his gradual injury may not have an adequate remedy. A plaintiff, such as Mix, may be faced with the choice of filing suit prematurely, which may preclude a full recovery and could result in him being declared unfit to work, or waiting until the gradual injury becomes serious enough to render him unfit to work, in which case the claim may be barred as untimely. Either result would be inequitable and undermine the spirit of the FELA, which we must interpret broadly to effectuate its remedial purpose.
See, e.g., Consolidated Rail Corp. v. Gottshall,
For these reasons, we decline to join the following circuit decisions to the extent that they can be read as necessarily barring FELA claims based upon injuries suffered during the three-year period of limitations.
See, e.g., White v. Mercury Marine, Div. of Brunswick, Inc.,
Mix argues that we should toll the statute of limitations based upon the continuing tort doctrine, which provides that, in certain tort cases involving continuous or repeated injuries, the statute of limitations accrues upon the date of the last injury and that the plaintiff may recover for the entire period of the employer’s negligence, provided that an act contributing to the claim occurs within the filing period.
See National R.R. Passenger Corp. v. Morgan,
At oral argument, the parties addressed the applicability of
National R.R. Passenger Corp. v. Morgan,
Whereas Title VII utilizes an “occurrence-based” trigger for the statute of limitations, the FELA has a “discovery-based” trigger. As discussed, an FELA claim accrues once the plaintiff knows, or should have known, of both the existence and cause of his injury. As the plaintiffs knowledge, in the exercise of due diligence, is dispositive, it is not relevant whether a single incident of tortious conduct occurs within the filing period. Once the plaintiff is aware of his injury and its cause, the mere fact that the tortious conduct — of which he is aware — is ongoing does not provide a basis for tolling or restarting the statute of limitations. 3 Accordingly, we reject the argument that the continuing *90 tort doctrine tolls the statute of limitations in FELA cases.
Mix argues that we should adopt the approach of the Third Circuit, which permits a distinct cause of action under the FELA for “aggravation” of an existing, gradual injury that occurs during the three-year period preceding the suit.
See Kichline v. Consolidated Rail Corp.,
Instead, we rely upon the plain language of the discovery rule, which provides that the statute of limitations accrues upon the plaintiffs discovery of both his injury and its cause. Accordingly, a plaintiff can recover for injuries suffered during the three-year period preceding the suit, if these injuries are sufficiently distinct from those previously suffered. A plaintiff can also recover for aggravation to existing injuries, provided that the aggravation was caused by a distinct act of negligence whose existence and relationship to the injury was unknown prior to the three-year period preceding the suit.
A. A Distinct Injury
A plaintiff may recover for distinct injuries he suffers during the three-year period preceding the suit. Had Mix proffered sufficient evidence to support his argument that “tinnitus” and “hearing loss” are separate conditions, and that he began to suffer from the latter affliction only during the statute of limitations period, we would have vacated the district court’s judgment on this basis. However, the undisputed record is clear that Mix suffered from “hearing loss” as early as 1993.
Regardless, Mix’s argument requires us to determine how distinct the two injuries must be — or more aptly, how similar the injuries máy be — in order to assert a claim on this basis. In an effort to craft a bright-line rule, we rely upon the Sixth Circuit’s holding in
Fonseca v. Consolidated Rail Corp.,
We adopt the same rule and hold that a plaintiff may maintain a claim for
*91
“accumulation” if he proffers evidence suggesting that his initial symptoms were temporary in nature, and based upon their accumulation, became permanent injuries only during the three-year period preceding his suit. In essence, we recognize that temporary injuries may be sufficiently distinct from permanent injuries to preclude summary judgment, as an employee is “injured only when the
accumulated
effects of the [continuing exposure] manifest themselves.”
Urie,
B. A Distinct Cause
We also recognize that a plaintiff may assert a claim for “aggravation” of an existing injury, provided there is evidence that the additional damage was caused by a distinct act of negligence of which the plaintiff became aware only during the three-year period preceding his suit.
See Consolidated Rail Corp.,
CONCLUSION
Based upon the foregoing, the judgment of the United States District Court for the Northern District of New York is affirmed in part and vacated and remanded in part so that the district court may reconsider the motion in a manner consistent with this opinion and undertake additional fact finding, if necessary.
Notes
. Although this document states that Mix suffered from "moderate hearing loss,” Mix did not write this comment. It is unclear whether he ever saw the comment or learned of the diagnosis.
. In
Fletcher v. Union Pac. R.R. Co.,
. Mix also relies upon
Page v. United States,
