A nurse at the Dallas VA who develops a disabling back condition. A scientist at NIH whose long COVID has made it impossible to maintain bench work. An air traffic controller whose cardiac condition disqualifies him from his medical certification. A program analyst at SSA whose major depressive disorder no longer responds to treatment well enough to allow regular attendance. Each of these federal workers may qualify for disability retirement under FERS, an underused benefit that provides ongoing income, continued health insurance, and a pathway out of a job the employee can no longer perform. A Maryland federal employee attorney who handles disability retirement cases will tell you the same thing: applications denied at the OPM level often succeed on appeal to the MSPB if the medical evidence is properly developed and the legal standards are properly applied.
What FERS Disability Retirement Actually Provides
FERS disability retirement is governed by 5 U.S.C. § 8451 and 5 C.F.R. Part 844. The program provides a monthly annuity to federal employees who become disabled while in federal service, with payments continuing until the employee reaches retirement age (when the annuity converts to regular FERS retirement) or recovers from the disability.
The benefit is meaningful. The first 12 months pay 60 percent of the employee’s high-3 average salary, reduced by 100 percent of any Social Security Disability Insurance the employee receives. After the first year, the rate drops to 40 percent of high-3, reduced by 60 percent of SSDI. The employee continues to accrue federal service credit for retirement purposes and retains FEHB and FEGLI coverage on the same terms as any retiree.
CSRS disability retirement, governed by 5 U.S.C. § 8337, applies to legacy employees hired before 1984 who never converted. The eligibility framework is similar but the annuity calculation and Social Security offset rules differ.
The Five Eligibility Elements
To qualify for FERS disability retirement, an employee must meet five elements drawn from the statute and OPM regulations:
At least 18 months of creditable federal civilian service. Military service generally doesn’t count for this threshold.
A disease or injury that prevents useful and efficient service in the employee’s position. The disability doesn’t have to be total or permanent in the medical sense; it has to prevent the employee from performing the duties of the specific position held.
The disability must be expected to last at least one year.
The employing agency must be unable to accommodate the disabling condition in the employee’s current position or in another vacant position at the same grade or pay level for which the employee is qualified.
The employee must apply for disability retirement before separation from federal service or within one year after separation.
Each element produces its own evidentiary issues, and each is a place where applications routinely fall apart.
What “Useful and Efficient Service” Means in Practice
The MSPB’s case law on FERS disability retirement focuses on whether the employee can perform the essential duties of the position with consistent regularity. Cases like Bruner v. OPM and the body of decisions interpreting it establish that the employee doesn’t have to be unable to perform any work whatsoever; the inability has to relate to the specific position held.
A federal employee whose chronic migraines cause unpredictable absences three days a month may be unable to provide useful and efficient service even if she can do the work on the days she’s present. A scientist whose immunological condition prevents him from working in a laboratory environment may qualify even if he could perform desk work in a different role.
The accommodation analysis matters here too. An agency that documented good-faith attempts to accommodate the condition (telework, schedule modifications, ergonomic equipment, reassignment offers) and the employee’s continued inability to perform supports the disability case. An agency that simply pushed the employee toward separation without engaging in the interactive process creates evidentiary issues that can complicate the application.
How the Application Process Works
The application is made on Standard Form 3105 (FERS) or SF 2824 (CSRS), supported by detailed medical documentation. The package goes through the employing agency’s HR office, which adds Agency Certification of Reassignment and Accommodation Efforts (SF 3112D) and forwards the file to OPM’s Retirement Services in Boyers, Pennsylvania.
OPM reviews the application against the regulatory criteria. Decisions can take six to twelve months or longer, depending on case complexity and OPM workload.
The medical documentation is the foundation. OPM looks for:
- A clear diagnosis from a qualified medical provider
- A description of the specific functional limitations the condition imposes
- A connection between those limitations and the duties of the employee’s position
- Evidence that the condition is expected to last at least one year
- Treatment history demonstrating the chronicity and severity
Generic disability letters from primary care providers rarely succeed. Detailed letters from specialists who have treated the condition over time, supported by treatment records, diagnostic imaging, and functional capacity evaluations, generally do.
Common Reasons for OPM Denial
A few patterns recur in OPM denials:
Insufficient medical documentation tying the condition to the specific job duties. The medical provider may describe a serious condition without explaining why it prevents performance of this particular position.
Inadequate agency certification of accommodation efforts. The agency may not have documented the accommodation attempts in a way that satisfies OPM’s review.
Failure to show that the disability is expected to last at least one year. Acute conditions that have already begun to improve at the time of application may not meet the durational requirement.
Overlap with workers’ compensation. Employees pursuing OWCP benefits sometimes face complications when OPM perceives the medical record as oriented toward FECA rather than disability retirement.
Conflicting medical opinions. OPM gives weight to the agency’s medical reviewer or to its own consultative examinations, and conflicts in the medical record can produce denials.
MSPB Appeal Rights
Denied FERS disability retirement applications can be appealed to the Merit Systems Protection Board within 30 calendar days of OPM’s reconsideration decision. The appeal goes to the regional office serving the appellant’s location; for Maryland federal employees, that’s typically the Washington Regional Office.
The MSPB applies a de novo standard of review to disability retirement denials. The administrative judge considers the medical evidence, the agency’s accommodation efforts, and the legal standards independently of OPM’s prior decision. This is a significant procedural advantage; many cases denied by OPM succeed at the MSPB when properly presented.
Discovery at the MSPB is limited but useful. The agency’s accommodation file, the medical reviewer’s notes, and the OPM case file all become accessible. Witness testimony from the treating providers, supervisors familiar with the position’s demands, and the employee herself often makes the difference.
After the MSPB administrative judge’s initial decision, either party can petition for review by the full Board within 35 days. Final Board decisions are appealable to the U.S. Court of Appeals for the Federal Circuit within 60 days.
Practical Steps for Maryland Federal Employees Considering Disability Retirement
Apply before separation when possible. Applying after separation is permitted within one year, but the procedural posture is harder.
Coordinate with treating providers to develop medical documentation that addresses the specific job duties. A functional capacity evaluation tied to the position description is often the strongest single piece of evidence.
Document accommodation requests and agency responses throughout the process. The accommodation analysis is part of the disability retirement case.
Consider parallel claims carefully. Workers’ compensation under FECA, Social Security Disability, and disability retirement can be pursued together, but the interactions affect benefit calculations and procedural posture.
Don’t sign agency separation paperwork or last chance agreements that could compromise the disability retirement application without counsel review.
Federal employees across NIH, FDA, NIST, SSA, CMS, NASA Goddard, NAVAIR Pax River, Aberdeen Proving Ground, NSA, NOAA, USDA Beltsville, and other Maryland agencies all operate under the same FERS framework with agency-specific accommodation cultures.
For background, opm.gov publishes the FERS disability retirement application materials and procedural guidance, mspb.gov publishes the disability retirement decisional database, and 5 U.S.C. § 8451 with 5 C.F.R. Part 844 provide the substantive framework.
Talk to a Maryland Federal Employee Attorney Before Filing or After a Denial
Disability retirement applications reward careful medical development and procedural attention from the start. A Maryland federal employee attorney who has handled FERS and CSRS disability retirement applications and MSPB appeals can help frame the medical evidence, document the accommodation analysis, and present the case in a way that satisfies the regulatory criteria. If you’re considering applying for disability retirement, or your application has been denied, contact counsel before the next deadline runs.

