numerosity requirement (California) · Go Syfert
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numerosity requirement in California

7 California opinions name it 1 courts 2013–2023 3 in the last five years

The cases below were cited by California courts in a sentence that names this issue. Sides come from how each citing opinion treated the case (Syfertize flag on that citation), so a case can appear on both: that is where the law is contested. A red or yellow chip is the case's own overall treatment.

Followed or applied (12)

CaseFollowedCited
Rose v. City of Haywardgreen
calctapp · 1981 · cited in 2 California opinions naming this issue, 2013–2014
2 sentences

2014No set number is required as a matter of law for the maintenance of a class action. [Citation.] Thus, our Supreme Court has upheld a class representing the 10 beneficiaries of a trust in an action for removal of the trustees. [Citation.]” (Rose v. City of Hayward (1981) 126 Cal.App.3d 926, 934 [ 179 Cal.Rptr. 287 ].) “The ultimate issue in evaluating this factor is whether the class is too large to make joinder practicable . . . ,” 5 (Celano v. Marriott Internal, Inc. (N.D.Cal. 2007) 242 F.R.D. 544, 549 .) “ ‘[I]mpracticability’ does not mean ‘impossibility,’ but only the difficulty or inconve

2014No set number is required as a matter of law for the maintenance of a class action. [Citation.] Thus, our Supreme Court has upheld a class representing the 10 beneficiaries of a trust in an action for removal of the trustees. [Citation.]” (Rose v. City of Hayward (1981) 126 Cal.App.3d 926, 934 [ 179 Cal.Rptr. 287 ].) “The ultimate issue in evaluating this factor is whether the class is too large to make joinder practicable . . . ,” 5 (Celano v. Marriott Internal, Inc. (N.D.Cal. 2007) 242 F.R.D. 544, 549 .) “ ‘[I]mpracticability’ does not mean ‘impossibility,’ but only the difficulty or inconve

22
Anaheim Elementary Education Ass'n v. Board of Educationgreen
calctapp · 1986 · cited in 1 California opinions naming this issue, 2021–2021
1 sentence

2021(See Anaheim Elementary Education Assn. v. Board of Education (1986) 179 Cal.App.3d 1153, 1157, 1155 [“It is settled that ‘[a] labor union is entitled to represent its members in an action which is inseparably founded upon its members’ employment’ ”; lawsuit sought relief for two temporary teachers and others similarly situated].) We believe the number of affected employees here—107—is sufficiently numerous that, if this were a class action, the numerosity requirement would be met.

11
Californians for Disability Rights, Inc. v. California Department of Transportationgreen
· 2008 · cited in 1 California opinions naming this issue, 2020–2020
1 sentence

2020Proc., rule 23(a)(1), 28 U.S.C. [federal statute similarly requires class “[to be] so numerous that joinder of all members is impracticable”].) “[T]here is no set number required as a matter of law for the maintenance of a class action.” (Hebbard v. Colgrove (1972) 28 Cal.App.3d 1017, 1030 ; accord, Hendershot, supra, at p. 1222 ; see Campbell v. Pricewaterhousecoopers (E.D.Cal. 2008) 253 F.R.D. 586, 594 [“While there is no set number of members required [under federal law], courts have generally found classes numbering in the hundreds to be sufficient to satisfy the numerosity requirement.”];

11
Campbell v. Pricewaterhousecoopers, LLPgreen
caed · 2008 · cited in 1 California opinions naming this issue, 2020–2020
1 sentence

2020Proc., rule 23(a)(1), 28 U.S.C. [federal statute similarly requires class “[to be] so numerous that joinder of all members is impracticable”].) “[T]here is no set number required as a matter of law for the maintenance of a class action.” (Hebbard v. Colgrove (1972) 28 Cal.App.3d 1017, 1030 ; accord, Hendershot, supra, at p. 1222 ; see Campbell v. Pricewaterhousecoopers (E.D.Cal. 2008) 253 F.R.D. 586, 594 [“While there is no set number of members required [under federal law], courts have generally found classes numbering in the hundreds to be sufficient to satisfy the numerosity requirement.”];

11
Perez-Funez v. District Director, Immigration & Naturalization Servicegreen
cacd · 1984 · cited in 1 California opinions naming this issue, 2020–2020
1 sentence

2020Proc., rule 23(a)(1), 28 U.S.C. [federal statute similarly requires class “[to be] so numerous that joinder of all members is impracticable”].) “[T]here is no set number required as a matter of law for the maintenance of a class action.” (Hebbard v. Colgrove (1972) 28 Cal.App.3d 1017, 1030 ; accord, Hendershot, supra, at p. 1222 ; see Campbell v. Pricewaterhousecoopers (E.D.Cal. 2008) 253 F.R.D. 586, 594 [“While there is no set number of members required [under federal law], courts have generally found classes numbering in the hundreds to be sufficient to satisfy the numerosity requirement.”];

11
Chindarah v. Pick Up Stix, Inc.green
calctapp · 2009 · cited in 1 California opinions naming this issue, 2014–2014
2 sentences

2014Were we to condone merit-based challenges as part and parcel of the certification process, similar procedural protections would be necessary to ensure that an otherwise certifiable class is not unfairly denied the opportunity to proceed on legitimate claims.” 7 ( Linder, supra, 23 Cal.4th at pp. 440-441; see, e.g., Chindarah v. Pick Up Stix, Inc. (2009) 171 Cal.App.4th 796 [ 90 Cal.Rptr.3d 175 ] [employer cross-claimed against employees who joined class action after signing settlement agreements, and the court properly granted summary judgment on these claims for the employer].) Accordingly, h

2014Were we to condone merit-based challenges as part and parcel of the certification process, similar procedural protections would be necessary to ensure that an otherwise certifiable class is not unfairly denied the opportunity to proceed on legitimate claims.” 7 ( Linder, supra, 23 Cal.4th at pp. 440-441; see, e.g., Chindarah v. Pick Up Stix, Inc. (2009) 171 Cal.App.4th 796 [ 90 Cal.Rptr.3d 175 ] [employer cross-claimed against employees who joined class action after signing settlement agreements, and the court properly granted summary judgment on these claims for the employer].) Accordingly, h

11
General Telephone Co. of the Northwest, Inc. v. Equal Employment Opportunity Commissiongreen
scotus · 1980 · cited in 1 California opinions naming this issue, 2014–2014
2 sentences

2014No set number is required as a matter of law for the maintenance of a class action. [Citation.] Thus, our Supreme Court has upheld a class representing the 10 beneficiaries of a trust in an action for removal of the trustees. [Citation.]” (Rose v. City of Hayward (1981) 126 Cal.App.3d 926, 934 [ 179 Cal.Rptr. 287 ].) “The ultimate issue in evaluating this factor is whether the class is too large to make joinder practicable . . . ,” 5 (Celano v. Marriott Internal, Inc. (N.D.Cal. 2007) 242 F.R.D. 544, 549 .) “ ‘[I]mpracticability’ does not mean ‘impossibility,’ but only the difficulty or inconve

2014No set number is required as a matter of law for the maintenance of a class action. [Citation.] Thus, our Supreme Court has upheld a class representing the 10 beneficiaries of a trust in an action for removal of the trustees. [Citation.]” (Rose v. City of Hayward (1981) 126 Cal.App.3d 926, 934 [ 179 Cal.Rptr. 287 ].) “The ultimate issue in evaluating this factor is whether the class is too large to make joinder practicable . . . ,” 5 (Celano v. Marriott Internal, Inc. (N.D.Cal. 2007) 242 F.R.D. 544, 549 .) “ ‘[I]mpracticability’ does not mean ‘impossibility,’ but only the difficulty or inconve

11
Bauman v. Islay Investmentsgreen
calctapp · 1975 · cited in 1 California opinions naming this issue, 2013–2013
2 sentences

2013There must be some evidence supporting such.' " (Soderstedt, supra, 197 Cal.App.4th at p. 155 ; see also Quacchia, supra, 122 Cal.App.4th at p. 1447 [party seeking class certification must present substantial evidence of all procedural requirements of certification]; Bauman, supra, 45 Cal.App.3d at p. 801 [party seeking class certification must prove approximate size of proposed class].) Here, no such evidence was submitted.

2013There must be some evidence supporting such.' " (Soderstedt, supra, 197 Cal.App.4th at p. 155 ; see also Quacchia, supra, 122 Cal.App.4th at p. 1447 [party seeking class certification must present substantial evidence of all procedural requirements of certification]; Bauman, supra, 45 Cal.App.3d at p. 801 [party seeking class certification must prove approximate size of proposed class].) Here, no such evidence was submitted.

11
Quacchia v. DaimlerChrysler Corp.green
calctapp · 2004 · cited in 1 California opinions naming this issue, 2013–2013
2 sentences

2013There must be some evidence supporting such.' " (Soderstedt, supra, 197 Cal.App.4th at p. 155 ; see also Quacchia, supra, 122 Cal.App.4th at p. 1447 [party seeking class certification must present substantial evidence of all procedural requirements of certification]; Bauman, supra, 45 Cal.App.3d at p. 801 [party seeking class certification must prove approximate size of proposed class].) Here, no such evidence was submitted.

2013There must be some evidence supporting such.' " (Soderstedt, supra, 197 Cal.App.4th at p. 155 ; see also Quacchia, supra, 122 Cal.App.4th at p. 1447 [party seeking class certification must present substantial evidence of all procedural requirements of certification]; Bauman, supra, 45 Cal.App.3d at p. 801 [party seeking class certification must prove approximate size of proposed class].) Here, no such evidence was submitted.

11
Bowles v. Superior Courtgreen
cal · 1955 · cited in 1 California opinions naming this issue, 2013–2013
2 sentences

2013(See, e.g., Bowles, supra, 44 Cal.2d at p. 587 [10 class members]; Collins, supra, 7 Cal.3d at p. 234 [35 class members]; Rose, supra, 126 Cal.App.3d at p. 934 [42 class members].) Indeed, the Overtime Class’s size will necessarily surpass the Regular Rate Class’s size because its class definition identifies a broader group of field employees.

2013(See, e.g., Bowles, supra, 44 Cal.2d at p. 587 [10 class members]; Collins, supra, 7 Cal.3d at p. 234 [35 class members]; Rose, supra, 126 Cal.App.3d at p. 934 [42 class members].) Indeed, the Overtime Class’s size will necessarily surpass the Regular Rate Class’s size because its class definition identifies a broader group of field employees.

11
Sav-On Drug Stores, Inc. v. Superior Courtgreen
cal · 2004 · cited in 1 California opinions naming this issue, 2013–2013
2 sentences

2013Predominance of Common Issues “The ‘ultimate question’ the element of predominance presents is whether ‘the issues which may be jointly tried, when compared with those requiring separate adjudication, are so numerous or substantial that the maintenance of a class action would be advantageous to the judicial process and to the litigants.’ [Citations.] The answer hinges on ‘whether the theory of recovery advanced by the proponents of certification is, as an analytical matter, likely to prove amenable to class treatment.’ [Citation.]” (Brinker, supra, 53 Cal.4th at p. 1021 .) “A court must examin

2013Predominance of Common Issues “The ‘ultimate question’ the element of predominance presents is whether ‘the issues which may be jointly tried, when compared with those requiring separate adjudication, are so numerous or substantial that the maintenance of a class action would be advantageous to the judicial process and to the litigants.’ [Citations.] The answer hinges on ‘whether the theory of recovery advanced by the proponents of certification is, as an analytical matter, likely to prove amenable to class treatment.’ [Citation.]” (Brinker, supra, 53 Cal.4th at p. 1021 .) “A court must examin

11
Collins v. Rochagreen
cal · 1972 · cited in 1 California opinions naming this issue, 2013–2013
2 sentences

2013(See, e.g., Bowles, supra, 44 Cal.2d at p. 587 [10 class members]; Collins, supra, 7 Cal.3d at p. 234 [35 class members]; Rose, supra, 126 Cal.App.3d at p. 934 [42 class members].) Indeed, the Overtime Class’s size will necessarily surpass the Regular Rate Class’s size because its class definition identifies a broader group of field employees.

2013(See, e.g., Bowles, supra, 44 Cal.2d at p. 587 [10 class members]; Collins, supra, 7 Cal.3d at p. 234 [35 class members]; Rose, supra, 126 Cal.App.3d at p. 934 [42 class members].) Indeed, the Overtime Class’s size will necessarily surpass the Regular Rate Class’s size because its class definition identifies a broader group of field employees.

11

Distinguished, questioned or overruled (0)

CaseNegativeCited
No negative-treatment citations attached to this issue in California. Read the followed side critically anyway.

Also cited on this issue (8)

CaseCitedYears
Celano v. Marriott International, Inc. green
cand · 2007
2 sentences

2020Proc., rule 23(a)(1), 28 U.S.C. [federal statute similarly requires class “[to be] so numerous that joinder of all members is impracticable”].) “[T]here is no set number required as a matter of law for the maintenance of a class action.” (Hebbard v. Colgrove (1972) 28 Cal.App.3d 1017, 1030 ; accord, Hendershot, supra, at p. 1222 ; see Campbell v. Pricewaterhousecoopers (E.D.Cal. 2008) 253 F.R.D. 586, 594 [“While there is no set number of members required [under federal law], courts have generally found classes numbering in the hundreds to be sufficient to satisfy the numerosity requirement.”];

2014No set number is required as a matter of law for the maintenance of a class action. [Citation.] Thus, our Supreme Court has upheld a class representing the 10 beneficiaries of a trust in an action for removal of the trustees. [Citation.]” (Rose v. City of Hayward (1981) 126 Cal.App.3d 926, 934 [ 179 Cal.Rptr. 287 ].) “The ultimate issue in evaluating this factor is whether the class is too large to make joinder practicable . . . ,” 5 (Celano v. Marriott Internal, Inc. (N.D.Cal. 2007) 242 F.R.D. 544, 549 .) “ ‘[I]mpracticability’ does not mean ‘impossibility,’ but only the difficulty or inconve

22014–2020
William Harris v. Palm Springs Alpine Estates, Inc. green
ca9 · 1964
2 sentences

2020Proc., rule 23(a)(1), 28 U.S.C. [federal statute similarly requires class “[to be] so numerous that joinder of all members is impracticable”].) “[T]here is no set number required as a matter of law for the maintenance of a class action.” (Hebbard v. Colgrove (1972) 28 Cal.App.3d 1017, 1030 ; accord, Hendershot, supra, at p. 1222 ; see Campbell v. Pricewaterhousecoopers (E.D.Cal. 2008) 253 F.R.D. 586, 594 [“While there is no set number of members required [under federal law], courts have generally found classes numbering in the hundreds to be sufficient to satisfy the numerosity requirement.”];

2014No set number is required as a matter of law for the maintenance of a class action. [Citation.] Thus, our Supreme Court has upheld a class representing the 10 beneficiaries of a trust in an action for removal of the trustees. [Citation.]” (Rose v. City of Hayward (1981) 126 Cal.App.3d 926, 934 [ 179 Cal.Rptr. 287 ].) “The ultimate issue in evaluating this factor is whether the class is too large to make joinder practicable . . . ,” 5 (Celano v. Marriott Internal, Inc. (N.D.Cal. 2007) 242 F.R.D. 544, 549 .) “ ‘[I]mpracticability’ does not mean ‘impossibility,’ but only the difficulty or inconve

22014–2020
Brinker Restaurant Corp. v. Superior Court green
cal · 2012
2 sentences

2014(Brinker, supra, 53 Cal.4th at p. 1024 .) Although these defenses may overlap with the determination of whether the class representatives here can adequately represent members who have signed releases and arbitration agreements, or whether those representatives’ claims and defenses are typical of those of the class, the trial court did not address these matters.

2013Predominance of Common Issues “The ‘ultimate question’ the element of predominance presents is whether ‘the issues which may be jointly tried, when compared with those requiring separate adjudication, are so numerous or substantial that the maintenance of a class action would be advantageous to the judicial process and to the litigants.’ [Citations.] The answer hinges on ‘whether the theory of recovery advanced by the proponents of certification is, as an analytical matter, likely to prove amenable to class treatment.’ [Citation.]” (Brinker, supra, 53 Cal.4th at p. 1021 .) “A court must examin

22013–2014
Belaire-West Landscape, Inc. v. Superior Court green
calctapp · 2007
2 sentences

2023The Belaire process derives from Belaire, supra, 149 Cal.App.4th 554 .

2023The Belaire process derives from Belaire, supra, 149 Cal.App.4th 554 .

12023–2023
American Pipe & Construction Co. v. Utah green
scotus · 1974
1 sentence

2023(American Pipe, supra, 414 U.S. at p. 541 .) The district court ultimately denied class certification for failure to satisfy the numerosity requirement of rule 23(a)(1) of the Federal Rules of Civil Procedure.

12023–2023
Hebbard v. Colgrove green
calctapp · 1972
1 sentence

2020Proc., rule 23(a)(1), 28 U.S.C. [federal statute similarly requires class “[to be] so numerous that joinder of all members is impracticable”].) “[T]here is no set number required as a matter of law for the maintenance of a class action.” (Hebbard v. Colgrove (1972) 28 Cal.App.3d 1017, 1030 ; accord, Hendershot, supra, at p. 1222 ; see Campbell v. Pricewaterhousecoopers (E.D.Cal. 2008) 253 F.R.D. 586, 594 [“While there is no set number of members required [under federal law], courts have generally found classes numbering in the hundreds to be sufficient to satisfy the numerosity requirement.”];

12020–2020
cluster 408219 green
ca8 · 1982
1 sentence

2014No set number is required as a matter of law for the maintenance of a class action. [Citation.] Thus, our Supreme Court has upheld a class representing the 10 beneficiaries of a trust in an action for removal of the trustees. [Citation.]” (Rose v. City of Hayward (1981) 126 Cal.App.3d 926, 934 [ 179 Cal.Rptr. 287 ].) “The ultimate issue in evaluating this factor is whether the class is too large to make joinder practicable . . . ,” 5 (Celano v. Marriott Internal, Inc. (N.D.Cal. 2007) 242 F.R.D. 544, 549 .) “ ‘[I]mpracticability’ does not mean ‘impossibility,’ but only the difficulty or inconve

12014–2014
Soderstedt v. CBIZ Southern California, LLC green
calctapp · 2011
1 sentence

2013There must be some evidence supporting such.' " (Soderstedt, supra, 197 Cal.App.4th at p. 155 ; see also Quacchia, supra, 122 Cal.App.4th at p. 1447 [party seeking class certification must present substantial evidence of all procedural requirements of certification]; Bauman, supra, 45 Cal.App.3d at p. 801 [party seeking class certification must prove approximate size of proposed class].) Here, no such evidence was submitted.

12013–2013

Where else courts name it

LA 40 (1989–2025) OH 25 (1993–2025) PA 19 (1974–2022) TX 18 (1991–2022) NY 17 (1986–2026) AR 17 (1995–2022) NJ 11 (1993–2026) MI 9 (1999–2021) MA 9 (1993–2020) IL 9 (1980–2024) GA 9 (2011–2025) CT 8 (1990–2009) OK 8 (1999–2017) CA 7 (2013–2023) CO 6 (1990–2009) FL 6 (1990–2019) MT 5 (2011–2025) KY 5 (2018–2022) IN 3 (1998–2024) NC 3 (2002–2015) IA 3 (2017–2017) DE 3 (2018–2022) RI 3 (2002–2008) AL 2 (1996–2011) WA 2 (2018–2025) MD 2 (2000–2014) ME 2 (2000–2001) NV 2 (1995–2012) MO 2 (2006–2019)

Opinions by the citing court's state. A doctrine retained in one state and abandoned in another shows up here as a year span that stalls.

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