2. Background and Procedural History
The vision tests and employment restriction
Bien worked as a locomotive train conductor. In 2013, he failed an Ishihara color-vision test administered for Federal Railroad Administration certification. He subsequently failed color-vision field tests. Union Pacific removed him from conductor service and informed him that he could not work in positions requiring color-signal recognition because his restriction could not be accommodated.
After several months of unemployment, Union Pacific hired Bien in 2014 as a Manager of Crew Utilization, a lower-paying position.
In 2015, Union Pacific mistakenly directed Bien to undergo another certification physical. He passed the Ishihara test and requested the follow-up field test needed to support reconsideration of his restriction and possible reinstatement as a conductor.
A Union Pacific committee denied that request. Its October 2015 letter explained that it had formally reviewed his appeal, considered all information in his record, and concluded that:
- The 2013 field test was valid.
- His color-vision deficiency was presumed hereditary and permanent absent evidence of a temporary cause.
- The passing 2015 Ishihara result did not override the earlier field-test findings because the field test was more definitive.
The intervening class action
In February 2016, other employees filed the class action discussed in Harris v. Union Pacific Railroad Company, 329 F.R.D. 616 (D. Neb. 2019), rev’d, 953 F.3d 1030 (8th Cir. 2020). Its original proposed definition covered employees who suffered adverse employment action “for reasons related to a Fitness-for-Duty evaluation” within the specified period.
On February 5, 2019, the district court certified a differently worded class:
“[A]ll individuals who have been or will be subject to a fitness-for-duty examination as a result of a reportable health event at any time from September 18, 2014 until the final resolution of this action.”
The dispute therefore centered on whether Bien’s 2015 test and committee review constituted being “subject to a fitness-for-duty examination” resulting from a reportable health event.
Bien’s individual proceedings
Bien filed a discrimination charge with the Equal Employment Opportunity Commission and the Texas Workforce Commission in April 2020. After receiving a right-to-sue letter, he sued in January 2025.
The district court accepted that Bien belonged within the original proposed class but concluded that the certified definition excluded him. On its calculation, tolling therefore ended in February 2019, making his April 2020 administrative charge untimely. The court granted Union Pacific’s Rule 12(b)(6) motion and treated the remaining exhaustion and pleading issues as moot.
4. Analysis
A. Precedents Cited and Their Influence
The foundation: class-action tolling
Am. Pipe & Constr. Co. v. Utah, 414 U.S. 538 (1974). This decision supplies the governing tolling principle: filing a qualifying class action suspends limitations for asserted class members who would have participated had the action continued on a class basis. The Fifth Circuit emphasized its practical purpose. Potential class members should not need to file protective individual actions merely because class treatment might later fail or the definition might change.
Zaragoza v. Union Pac. R.R., 112 F.4th 313 (5th Cir. 2024), cert. denied, 145 S. Ct. 1428 (2025). This was the controlling circuit precedent. It also concerned tolling associated with the Harris litigation and established that limitations resumes when a claimant is unambiguously excluded. Bien gives that standard practical force: an arguable narrowing is insufficient, and a plausible reading preserving membership defeats a contention of unambiguous exclusion.
The opinion also discussed Zaragoza’s observation that Union Pacific’s earlier position that the certified class was overbroad could potentially complicate a later assertion that a particular employee fell outside it. That observation concerned possible estoppel; it was not an independent holding resolving Bien’s appeal.
DeFries v. Union Pac. R.R., 104 F.4th 1091 (9th Cir. 2024). This persuasive authority supplied much of the policy explanation underlying the Fifth Circuit’s approach. Requiring employees to retain lawyers to monitor and interpret every class-definition revision would undermine class litigation’s economies. Small-value claimants could lose protection, while larger-value claimants would have incentives to bring duplicative individual suits.
DeFries also helped explain the revised Harris definition. Its narrowing distinguished routine employment examinations from examinations triggered by reportable health events. It did not establish that Bien’s testing and medical review clearly fell outside the class. Its treatment of medical-record review within the fitness-for-duty process further supported the plausibility of Bien’s interpretation.
DeGeer v. Union Pac. R.R., 113 F.4th 1035 (8th Cir. 2024), cert. denied, 145 S. Ct. 1426 (2025). The Fifth Circuit adopted this decision’s warning against “subtle distinctions in language that are fodder for lawyers and quicksand for laymen.” That formulation reinforced the conclusion that refined linguistic distinctions cannot alone establish the clear exclusion required to terminate tolling.
The underlying class litigation
Harris v. Union Pacific Railroad Company, 329 F.R.D. 616 (D. Neb. 2019), rev’d, 953 F.3d 1030 (8th Cir. 2020). This litigation supplied the competing class definitions, rather than the controlling tolling standard. The Fifth Circuit considered the context in which the certified definition was adopted and the subsequent reversal of certification for overbreadth. Neither the wording change nor its history established that Bien’s exclusion was obvious.
The pleading and review framework
Johnson v. Harris Cnty., 83 F.4th 941 (5th Cir. 2023). This decision established de novo review of the dismissal and the requirement to accept well-pleaded facts as true while drawing reasonable inferences for Bien. Legal conclusions receive no comparable presumption.
Ashcroft v. Iqbal, 556 U.S. 662 (2009). The court invoked the familiar requirement that a complaint contain sufficient factual matter to state a facially plausible claim. The relevant factual allegations included the 2015 test and Union Pacific’s substantive committee review.
Jones v. Alcoa, Inc., 339 F.3d 359 (5th Cir. 2003). This precedent permits dismissal on limitations grounds when untimeliness is apparent from the pleadings and no basis for tolling is raised. Bien’s reliance on class-action tolling prevented dismissal on the particular exclusion theory accepted below.
Equity and the meaning of ambiguity
SEC v. Hallam, 42 F.4th 316 (5th Cir. 2022). The opinion relied on this case’s discussion of the maxim that “equity follows the law.” Its references to Pomeroy and Story explained why equitable principles should advance, rather than frustrate, the purposes of the governing legal framework. Here, requiring clear exclusion protects the efficiencies and reliance interests associated with Rule 23 and American Pipe.
Chevron, U.S.A., Inc. v. Nat. Res. Def. Council, Inc., 467 U.S. 837 (1984), overruled by Loper Bright Enters. v. Raimondo, 603 U.S. 369 (2024). These authorities appeared as a contrast, not as governing doctrine. The court explained that the inquiry was not the former administrative-law question whether a statute was ambiguous to a court. It was whether a claimant without counsel would understand that a class definition unmistakably excluded him.
Babbitt v. Sweet Home Chapter of Cmtys. for a Great Oregon, 515 U.S. 687 (1995), and Util. Air Regul. Grp. v. EPA, 573 U.S. 302 (2014). The opinion cited Justice Scalia’s dissent in the former and the Court’s discussion in the latter to illustrate that contrasting statutory-interpretation inquiry. Neither supplied a separate rule governing class-action tolling.
Technical background
Turner v. BNSF Ry., 138 F.4th 224 (5th Cir. 2025). Along with Zaragoza, this decision explained Ishihara testing and its connection to federal railroad certification requirements. It provided factual context, not the dispositive tolling rule.
B. Legal Reasoning
1. The question is clear exclusion, not the best interpretation
The opinion’s central distinction is between identifying the most persuasive interpretation of a class definition and determining whether another interpretation is plausibly available. Union Pacific might have offered an elegant reading of the revised language. That was insufficient because the applicable standard demanded exclusion beyond serious debate.
The court described qualifying exclusion as “straightforward, black-and-white, no-lawyer-required.” This gives the standard an objective, layperson-focused orientation. It does not make tolling depend on an individual claimant’s subjective understanding or establish a separate requirement of personal notice.
2. The 2015 events plausibly involved an examination
Union Pacific argued that an “examination” was a discrete component within a broader “evaluation,” and that Bien never received the particular field examination he requested. But its Medical Rules described fitness-for-duty evaluations broadly, encompassing tests, examinations, evaluations, medical records, and other necessary information.
That terminology did not make it obvious to a lay reader that an examination excluded the overall assessment of fitness. Moreover, Bien actually took a vision test bearing directly on the restriction. Its mistaken administration did not eliminate its relevance to whether he had undergone an examination.
3. The committee did more than ignore a request
The letter materially strengthened Bien’s position. It described formal review, consideration of the record, and a substantive comparison between the new passing result and the earlier failures. Those features supported the interpretation that Union Pacific examined his continuing fitness, even though it ultimately declined further testing.
The court therefore rejected the proposition that employee-initiated review necessarily falls outside being “subject to” an examination. Nothing in the revised definition made Union Pacific’s proposed requirement of unilateral employer initiation unmistakable.
4. The health-event qualification did not clearly exclude Bien
Union Pacific also relied on the requirement that an examination result from a reportable health event. The court recognized that the revised definition excluded some routine employment testing. Nevertheless, Bien’s testing history and 2015 review arguably implicated reportable health events, so that limitation did not plainly remove him from the class.
This was a ruling about the clarity of exclusion for tolling purposes. It was not a definitive interpretation establishing that every comparable test or review satisfies every element of the certified class definition.
5. Administrative exhaustion remained open
The district court had not resolved exhaustion, Bien did not address it in his opening appellate brief, and the subsequent briefing was limited. The Fifth Circuit therefore left the issue for remand. Its rejection of the class-exclusion rationale did not establish that Bien had satisfied every administrative or substantive prerequisite to recovery.
C. Potential Impact
- Stronger protection against silent loss of claims. Previously included claimants need not assume that debatable wording changes immediately restart limitations.
- Greater importance of clear class drafting. Parties seeking to exclude identifiable groups should express those exclusions plainly rather than rely on technical differences between related terms.
- Fewer protective individual suits. The decision reduces pressure to sue separately whenever a class definition arguably narrows.
- Reduced force of technical limitations defenses. Within the Fifth Circuit, defendants cannot establish the relevant exclusion merely by showing that their interpretation is preferable.
- Application beyond employment litigation. Although the dispute involved ADA claims and railroad medical screening, its reasoning concerns class-action tolling generally, subject to the governing limitations framework.
The protection is not unlimited. Clear exclusion still restarts the clock, and tolling does not revive an already expired claim. Nor does this decision establish a universal period of tolling for all Harris claimants. Its holding concerns whether the revised definition ended Bien’s protection.