causation requirement in Pennsylvania

2026“Due diligence is fact-specific, to be determined case-by-case; it does not require perfect vigilance and punctilious care, but merely a showing the Commonwealth has put forth a reasonable effort.” Commonwealth v. Selenski, 994 A.2d 1083, 1089 (Pa. 2010) (citation omitted).

2026“Due diligence is fact-specific, to be determined case-by-case; it does not require perfect vigilance and punctilious care, but merely a showing the Commonwealth has put forth a reasonable effort.” Commonwealth v. Selenski, 994 A.2d 1083, 1089 (Pa. 2010) (citation omitted).

2015See Schwartz v. Rockey, 932 A.2d 885 , 897 n.16 (Pa. 2007) (“[T]he justifiable reliance criterion derives from the causation requirement[,] which is express on the face of section 9.2.”); Toy, 928 A.2d at 202 (“[A] plaintiff alleging violations of the Consumer Protection Law must prove justifiable reliance.”); Yocca v. Pittsburgh Steelers Sports, Inc., 854 A.2d 425, 438 (Pa. 2004) (“To bring a private cause of action under the [UTPCPL], a plaintiff must show that he justifiably relied on the defendant’s wrongful conduct or representation and that he suffered harm as a result of that reliance.”

2004Because no fiduciary relationship has been demonstrated between the class and Chrysler to excuse proof of individualized reliance, the individual questions involving reliance and causation would remain a significant barrier to class certification.” (footnote omitted) The Pennsylvania Supreme Court recently remarked that the causation requirement found in all private UTPCPL actions presented “questions of fact applicable to each individual private plaintiff that would be numerous and extensive.” Weinberg v. Sun Co., 565 Pa. 612 , 777 A.2d 442, 446 (2001).

2021See Schwartz v. Rockey, 932 A.2d 885 , 897 n.16 (Pa. 2007) (noting that “the justifiable reliance criterion derives from the causation requirement” of Section 201-9.2).

2015Finally, in Schwartz v. Rockey, 593 Pa. 536 , 932 A.2d 885 (2007), in the context of addressing whether a court’s discretion to treble damages under the UTPCPL should be constrained by common law requirements associated with punitive damages, the Supreme Court again noted that the justifiable reliance criteria under the UTPCPL derives from the causation requirement on the face of Section 201-9.2 that a plaintiff suffer an ascertainable loss as a result of a defendant’s prohibited action.

2015ANI conducted its investigation into the underlying claims, engaged numerous radiation experts, and considered appellants’ exposure in light of the strict causation standard adopted in In re TMI Litigation, 193 F.3d 613, 643 (3d Cir. 1999), opinion amended, 199 F.3d 158 (3d Cir. 2000) (“[C]ausation can only be established (if at all) from epidemiological studies of populations exposed to ionizing radiation.”).

2015ANI conducted its investigation into the underlying claims, engaged numerous radiation experts, and considered appellants’ exposure in light of the strict causation standard adopted in In re TMI Litigation, 193 F.3d 613, 643 (3d Cir.1999), opinion amended, 199 F.3d 158 (3d Cir.2000) (“[C]ausation can only be established (if at all) from epidemiological studies of populations exposed to ionizing radiation.”).

2014This subdivision relates to the first step in the causation analysis because “[a] defendant’s actions are the legal cause of death if they are a direct and substantial factor in bringing it about.” Commonwealth v. Paquette, 451 Pa. 250 , 301 A.2d 837, 839 (1973) (citations omitted).

2014This subdivision relates to the first step in the causation analysis because “[a] defendant’s actions are the legal cause of death if they are a direct and substantial factor in bringing it about.” Commonwealth v. Paquette, 451 Pa. 250 , 301 A.2d 837, 839 (1973) (citations omitted).

2015ANI conducted its investigation into the underlying claims, engaged numerous radiation experts, and considered appellants’ exposure in light of the strict causation standard adopted in In re TMI Litigation, 193 F.3d 613, 643 (3d Cir. 1999), opinion amended, 199 F.3d 158 (3d Cir. 2000) (“[C]ausation can only be established (if at all) from epidemiological studies of populations exposed to ionizing radiation.”).

2015ANI conducted its investigation into the underlying claims, engaged numerous radiation experts, and considered appellants’ exposure in light of the strict causation standard adopted in In re TMI Litigation, 193 F.3d 613, 643 (3d Cir.1999), opinion amended, 199 F.3d 158 (3d Cir.2000) (“[C]ausation can only be established (if at all) from epidemiological studies of populations exposed to ionizing radiation.”).

2025Defendants contend that - 13 - J-A17017-25 the PREP Act establishes a liberal causation standard to invoke immunity, requiring only that a covered countermeasure has “played some role in bringing about or contributing to the plaintiff’s injury.” Defendant’s Brief at 24 (quoting Hampton v. California, 83 F.4th 754, 764 (9th Cir. 2023)).

2025“Due diligence does not require perfect vigilance and punctilious care, but rather a showing by the Commonwealth that a reasonable effort has been put forth.” Commonwealth v. Hunt, 858 A.2d 1234, 1241-42 (Pa. Super. 2004) (en banc) (citation omitted).

2021See Farrell v. Planters Lifesavers Co., 206 F.3d 271, 281 (3d Cir. 2000) (First Amendment retaliation) (stating that a plaintiff may establish causation from the “evidence gleaned from the record as a whole,” including with circumstantial evidence of a pattern of antagonism following the protected conduct); see also Uber v. Slippery Rock University of Pennsylvania, 887 A.2d 362, 368 (Pa. Cmwlth. 2005) (age discrimination) (“[C]ausation may be inferred where circumstantial evidence suggests a ‘pattern of antagonism’ following the protected conduct.

2021See Farrell v. Planters Lifesavers Co., 206 F.3d 271, 281 (3d Cir. 2000) (First Amendment retaliation) (stating that a plaintiff may establish causation from the “evidence gleaned from the record as a whole,” including with circumstantial evidence of a pattern of antagonism following the protected conduct); see also Uber v. Slippery Rock University of Pennsylvania, 887 A.2d 362, 368 (Pa. Cmwlth. 2005) (age discrimination) (“[C]ausation may be inferred where circumstantial evidence suggests a ‘pattern of antagonism’ following the protected conduct.

2020See Kakhankham, 132 A.3d at 995 (holding that the Commonwealth had satisfied both parts of - 14 - J-A30036-19 the causation test in a drug delivery resulting in death prosecution where the defendant provided heroin to the victim, the victim died of an overdose, and used packets of the heroin supplied by the defendant were found next to the victim’s body).

2019Cf. Graham, 81 A.3d at 146-47 (concluding that there was sufficient evidence to sustain the defendant’s conviction under subsection 3802(d)(3), where the defendant drove her vehicle slowly and recklessly, had glassy and bloodshot eyes, exhibited slurred speech, required assistance to exit her vehicle and stand, and failed all of her field sobriety tests); see generally Commonwealth v. Tarrach, 42 A.3d 342, 346 (Pa. Super. 2012) (concluding that there was sufficient evidence to sustain defendant’s subsection 3802(d)(2) (controlled substance) conviction, where the defendant admitted to taking pr

2019See Boyle v. Independent Life Truck, Inc., 6 A.3d 492 (Pa. 2010).

2019Cf. Graham, 81 A.3d at 146-47 (concluding that there was sufficient evidence to sustain the defendant’s conviction under subsection 3802(d)(3), where the defendant drove her vehicle slowly and recklessly, had glassy and bloodshot eyes, exhibited slurred speech, required assistance to exit her vehicle and stand, and failed all of her field sobriety tests); see generally Commonwealth v. Tarrach, 42 A.3d 342, 346 (Pa. Super. 2012) (concluding that there was sufficient evidence to sustain defendant’s subsection 3802(d)(2) (controlled substance) conviction, where the defendant admitted to taking pr

2018While Defendant's failure to establish prejudice, alone, is a sufficient basis upon which we may deny post-conviction relief, we find as an additional matter that Defendant's claim of ineffectiveness on this issue likewise fails, at a a,f\ c.y-- minimum, to establish one �rang of the performance portion of the Pierce test, as we cannot conclude that Attorney Lauer's decision not to pursue a causation defense lacked a reasonable basis. "[W]here matters of strategy and tactics are concerned, counsel's assistance is deemed constitutionally effective if he chose a particular course that had some r

2016Appeal Bd. (Plutch), 509 A.2d 942, 944 (Pa. Cmwlth. 1986) (stating same and that “the causation requirement in such . . . disability claims is to show that the heart attack occurred within the course of employment and that the employment was the cause thereof”).

2015See Schwartz v. Rockey, 932 A.2d 885 , 897 n.16 (Pa. 2007) (“[T]he justifiable reliance criterion derives from the causation requirement[,] which is express on the face of section 9.2.”); Toy, 928 A.2d at 202 (“[A] plaintiff alleging violations of the Consumer Protection Law must prove justifiable reliance.”); Yocca v. Pittsburgh Steelers Sports, Inc., 854 A.2d 425, 438 (Pa. 2004) (“To bring a private cause of action under the [UTPCPL], a plaintiff must show that he justifiably relied on the defendant’s wrongful conduct or representation and that he suffered harm as a result of that reliance.”