Appellants, Richard arid Catherine Price, filed a complaint in trespass on August 22, 1979 against appellee, Bell Asbestos Mines Ltd., alleging personal injuries due to Mr. Price’s exposure to asbestos during his employment as a weaver of dryer felts sold by Asten-Hill, Inc.. On November 13, 1979 Bell joined Amatex, Asbestos Corporation, Raybestos-Manhatten, National Gypsum, Cassiar Asbestos and Asten-Hill as additional defendants. 1 On August 1, 1983 the lower court granted appellees-’ motion for summary judgment based upon the expiration of the statute of limitations.
*136 Mr. Price was employed by the Asten-Hill Company from 1947-1961 as a weaver. Part of his duties included weaving asbestos fibres into asbestos cloth. On November 12, 1964 Mr. Price filed for workman’s disability compensation and was represented by Barton Post, Esquire. After hearings, the referee determined that Mr. Price had partial disability from asbestosis. On appeal to the Workmen’s Compensation Appeal Board, Mr. Price argued that his disability from asbestosis was total. The appeal was dismissed by the Board. The instant complaint in trespass was filed in August, 1979. On February 19, 1982 Mr. Price died. Mrs. Price filed a suggestion of death and substitution of party. On August 2, 1983 the lower court granted appellees’ motion for summary judgment and this appeal followed.
Appellant raises three issues in support of his argument that summary judgment was improperly granted by the court below. First, he argues that the lower court erred in applying the discovery rule defined in
Volpe v. Johns-Manville,
The short answer to appellant’s argument is that the motion for summary judgment in this case was granted in August, 1983. At that time appeals were pending before this Court in Cathcart (opinion filed January 13, 1984) and in Volpe (opinion filed December 23, 1983). Therefore the lower court did not err in applying the three-step Volpe test to determine when the statute of limitations commenced to run on appellant’s claim.
We reach the same result under the two-pronged test defined by
Cathcart.
This Court,
en banc,
has modified the
Volpe
test to hold that the statute of limitations in
*137
asbestos cases begins to run when a plaintiff “knows, or reasonably should know, that he has been injured and that his injury has been caused by another party’s conduct.”
2
Cathcart,
Appellant asserts that Cathcart requires that a claimant must know, or reasonably should know, that his injury was caused by another party’s tortious conduct. This argument is founded in a misinterpretation of the following language:
... [I]t should be clear that ... a plaintiff’s claim for all injuries arising out of the same tortious conduct of a defendant must be brought within two years of the time that the plaintiff knows, or in the exercise of reasonable *138 diligence should know, of his initial injury and that the injury was caused by someone’s wrongful conduct.
Appellant would have us interpret “wrongful conduct” in a manner which would toll the statute of limitations until a plaintiff reasonably should know that he had grounds for a cause of action in negligence. Cathcart does not venture this far.
The test defined in
Cathcart
requires only that a plaintiff reasonably should know “that his injury has been caused by another party’s conduct.”
This Court has previously rejected the argument that a plaintiff must know that he has a legal cause of action, before the statute of limitations begins to run. See
Staiano,
We wish to emphasize that the rule we announce is not the same as a rule which states that a cause of action accrues when a person knows or should know of both the injury and the defendant’s negligent conduct. Not only is such a standard beyond the comprehension of the ordinary lay person to recognize, but it assumes a conclusion which must properly await legal determination ____ Such a rule would allow a person to delay far beyond a reasonable time.
Id.,
The discovery rule as defined by
Cathcart
must stand.
Cathcart
imposes a duty of diligent inquiry on the plaintiff since it states that the statute begins to run when the plaintiff reasonably should know that his injury was caused by another party’s conduct. The
Cathcart
Court
en banc
did not insert the adjective “wrongful” before “conduct” in its formulation of the discovery test. Tolling the statute of limitations until a plaintiff ascertained that his or her injury was the result of someone’s tortious conduct would create an impossible standard of proof and defeat the very purpose of the statute.
See Gravinese v. Johns-Manville,
Appellants remaining arguments assert that the lower court erred in granting summary judgment based on the *140 evidence presented. We hold that summary judgment was properly granted.
Appellants assert that the lower court improperly interpreted Mr. Price’s 1964 Workman’s Compensation form. Nevertheless, contrary to appellants’ assertion, the court below simply did not create a per se irrebutable presumption that completion of a workman’s compensation form demonstrated that Mr. Price possessed all the elements of knowledge sufficient to start the statute of limitations. Instead, the lower court examined all evidence on file, including the form, before concluding that there was no genuine issue of fact that Mr. Price knew in 1964 of the nature and cause of his injury. Lower court opinion at 3; Pa.R.Civ.P., Rule 1035, 42 Pa.C.S.;
see also Acker v. Palena,
Finally, appellants argue that summary judgment was improperly granted upon a finding of matter of law that Mr. Price knew of his injury in 1964. This argument is disingenuous in light of Mr. Price’s clear statement in his workman’s compensation form that the disability for which he was seeking compensation resulted from his employment in an occupation having an “asbestosis” hazard. Further, he stated, “I have had continued physical problems since *141 August of 1963, and it has only been recently discovered that I had asbestos.”
The Order is affirmed.
Notes
. On June 18, 1980 Bell joined additional defendants, Johns-Manville, Southern Asbestos, Caroline Asbestos, Porter, Asten-Hill and National Asbestos.
. Prior to
Cathcart,
this Court has adopted Judge Takiff s formulation of the discovery rule as commencing the statute of limitations when a plaintiff: has knowledge of an injury; knowledge of the operative cause of the injury; and knowledge of the causative relationship between the injury and the operative conduct.
Volpe v. Johns-Manville,
. Appellants have similarly misinterpreted the holdings of
Ballew v. A.H. Robins,
