A seniority system will usually defeat an ADA accommodation request that conflicts with it. In US Airways, Inc. v. Barnett, the Supreme Court held that when a requested accommodation clashes with the rules of a seniority system, the accommodation is ordinarily “not reasonable” and therefore not required by the Americans with Disabilities Act.1Justia. US Airways, Inc. v. Barnett That is not the end of the road, though. The employer still has to keep looking for alternatives, and you can overcome the presumption by showing special circumstances in your particular workplace.
The Barnett Rule Skips the Undue Hardship Analysis
Most ADA accommodation disputes follow a familiar two-step. The employee proposes an accommodation that looks reasonable on its face, and the burden shifts to the employer to prove it would cause undue hardship. Seniority cases short-circuit that framework at step one.
The Court in Barnett was direct: “to show that a ‘reasonable accommodation’ conflicts with the rules of a seniority system is ordinarily to show that the accommodation is not ‘reasonable’ and hence not required by the ADA.”1Justia. US Airways, Inc. v. Barnett The employer never has to reach the undue-hardship defense. This trips up employees who arrive ready to argue their employer can absorb the cost or disruption, when the real fight is whether the accommodation was reasonable at all.
The result is a rebuttable presumption favoring the seniority system. You bear the burden of overcoming it. If you succeed, the analysis returns to the standard ADA framework and the employer has to demonstrate undue hardship to justify the denial.
The rule applies the same way whether the seniority ladder came from a union contract or from management’s own policy. The Court specifically noted that “the relevant seniority system advantages, and related difficulties resulting from violations of seniority rules, are not limited to collectively bargained systems.”1Justia. US Airways, Inc. v. Barnett
What Counts as a Bona Fide Seniority System
Not every tenure-based policy earns Barnett deference. The system has to be bona fide, meaning it was established and is maintained in good faith rather than built to dodge ADA obligations. The EEOC describes a qualifying system as one that “establishes a ranking or hierarchy among the employees based on relative length of employment.”2U.S. Equal Employment Opportunity Commission. CM-616 Seniority Systems
Consistency is what courts scrutinize hardest. If an employer follows seniority for some placements but ignores it for others, the system is unlikely to be treated as bona fide. The rules need to be clearly defined, documented, and communicated to the workforce. A policy that surfaces only when convenient will not carry the same weight as one published in the handbook and applied uniformly for years.
Special Circumstances That Rebut the Presumption
The Barnett presumption is not absolute. The Court left an opening for employees who can show that special circumstances in their particular workplace make a seniority exception reasonable. The examples the Court identified give you concrete evidence to look for.1Justia. US Airways, Inc. v. Barnett
- Frequent unilateral changes. If the employer has kept the right to alter the seniority system and uses that right fairly often, employees’ expectations in the system are already diminished, and one more exception is unlikely to matter.
- Existing exceptions. If the system already contains carve-outs for various situations, adding one for an ADA accommodation is harder for the employer to resist.
- Built-in exception procedures. Some systems include formal processes for requesting exceptions, which signals that seniority does not automatically guarantee any specific position.
The Court said these examples are not exhaustive. Any evidence that the workforce does not actually treat the seniority system as a rigid guarantee can qualify.3U.S. Equal Employment Opportunity Commission. Enforcement Guidance on Reasonable Accommodation and Undue Hardship under the ADA
Building the Record
A general sense that the employer plays loose with seniority will not carry the argument. Start with the employee handbook and any union contract. These documents often show whether management has reserved discretionary authority to override seniority in specific situations. If the employer has used that discretion in the past for reasons unrelated to disability, those instances directly support your special-circumstances argument.
Personnel records showing past placements where seniority was bypassed for convenience, performance, or favoritism are especially valuable. The more deviations you can identify, the harder it becomes for the employer to claim the system creates firm expectations. Reviewing years of records takes work. A clear pattern of flexibility can dismantle the presumption entirely.
Your Employer Still Has to Look for Alternatives
This is where both sides often get the law wrong. When seniority blocks a specific accommodation like reassignment to a particular position, the employer’s obligation under the ADA does not end. The employer has to continue the interactive process to identify alternative accommodations that would work without conflicting with the seniority rules.3U.S. Equal Employment Opportunity Commission. Enforcement Guidance on Reasonable Accommodation and Undue Hardship under the ADA
The EEOC’s guidance is direct. If one accommodation is blocked but a second type would be effective and would not cause undue hardship, the employer must provide the second one. Seniority concerns might take a specific reassignment off the table, but they do not excuse the employer from considering modified equipment, schedule adjustments that do not implicate seniority bidding, job restructuring, or reassignment to a different vacant position that no senior employee has claimed.
Reassignment itself is the accommodation of last resort. The employer should first explore whether accommodations exist that let you stay in your current role. Only after determining that no effective accommodation exists for the current position, or that all such accommodations would cause undue hardship, does reassignment enter the picture.3U.S. Equal Employment Opportunity Commission. Enforcement Guidance on Reasonable Accommodation and Undue Hardship under the ADA An employer who jumps straight to “seniority prevents reassignment, so we can’t help you” has almost certainly failed the interactive process.
One boundary worth flagging: the ADA covers employers with 15 or more employees. Below that threshold, the statute provides no remedy at all.4Office of the Law Revision Counsel. 42 USC 12112 – Discrimination
Union Contracts and Collective Bargaining
When the seniority system sits inside a collective bargaining agreement, the dynamics get more complicated but the legal framework does not change. A CBA does not automatically override the ADA, and the ADA does not automatically override a CBA. Courts and the EEOC weigh the interests of the disabled employee, the union’s duty to protect the agreement, and the specific accommodation being requested.
If a CBA reserves certain positions for employees with a set amount of seniority, that provision is a factor in the reasonableness analysis but not the last word. Unions also play a role in the interactive process, and the EEOC has noted that unions are bound by the ADA’s confidentiality requirements when they participate.3U.S. Equal Employment Opportunity Commission. Enforcement Guidance on Reasonable Accommodation and Undue Hardship under the ADA Bring in your steward early. The union may want to help shape how a seniority exception gets handled rather than fight it.
Filing Deadlines and Damages If Your Accommodation Was Wrongfully Denied
If you believe your accommodation was wrongfully denied on seniority grounds, file a charge of discrimination with the EEOC within 180 calendar days of the denial. That deadline extends to 300 days if a state or local agency enforces a similar anti-discrimination law, which covers most states.5U.S. Equal Employment Opportunity Commission. Time Limits For Filing A Charge Federal employees follow a separate process and generally must contact their agency’s EEO counselor within 45 days.
After the charge is filed, the EEOC investigates. If you want to move to court before the investigation finishes, you can request a Notice of Right to Sue once 180 days have passed since filing. Once that notice arrives, you have exactly 90 days to file a federal lawsuit.6U.S. Equal Employment Opportunity Commission. Filing a Lawsuit Miss that window and the case is barred.
Remedies for intentional disability discrimination include back pay, reinstatement, and compensatory and punitive damages. Federal law caps the combined compensatory and punitive damages by employer size:7Office of the Law Revision Counsel. 42 USC 1981a – Damages in Cases of Intentional Discrimination in Employment
- 15 to 100 employees: $50,000
- 101 to 200 employees: $100,000
- 201 to 500 employees: $200,000
- More than 500 employees: $300,000
The caps do not apply to back pay or front pay awards, which are calculated based on actual lost wages. An employee who was pushed out because the employer cited seniority and refused to explore alternatives can recover both the capped damages and uncapped wage losses.