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Layoff seniority units and layoff seniority

Last updated: June 27, 2026

Note: Layoff Seniority Unit value not available in Workday until mid-July.

Employees who have completed their probationary period and hold permanent status may have layoff rights. These rights are outlined in:

  • Collective bargaining agreements for represented employees
  • Civil service rules (Title 357 WAC) for classified non-union employees.
    Employees in positions represented by a union with layoff rights have layoff seniority within their layoff seniority unit.

Definitions

“Layoff seniority” is defined as the continuous length of service in calendar days with the UW from the most recent date of hire. Layoff seniority is lost following a break in service such as termination (voluntary or involuntary) or movement out of classified service, expiration of rehire rights, or movement to positions that do not have layoff rights (e.g., professional staff, faculty). Layoff seniority calculations are further defined in relevant collective bargaining agreements or civil service rules.

“Layoff seniority unit” is a defined grouping within which a represented employee is offered an employment option (sometimes referred to as a “bump” option) in accordance with their collective bargaining agreement or civil service rules. Layoff seniority units are typically the major org, division, or a combination of major orgs and defined in the appendices of collective bargaining agreements.

Layoff employment option process

When it becomes necessary for a department to reduce its workforce due to lack of work, lack of funds or reorganization, an employee scheduled for layoff will be offered an employment option as outlined in their collective bargaining agreement or in civil service rules provided they meet the essential skills (as defined in minimum quals listed in the job description for the specific position) of the offered position. Typically, the single available option is determined by following the list below in descending order until the employment option is identified:

  1. A funded vacant position within the same job profile and layoff unit.
  2. The opportunity to replace or “bump” the most junior employee in the same job profile within the layoff seniority unit.
  3. A funded vacant position in a lower job profile within the same series within the layoff seniority unit.
  4. The opportunity to replace the most junior employee in a lower job profile within the same series within the department.

Supporting layoff seniority calculation accuracy

Because employment options are based on ensuring the employee has the required competencies for the position, and the employee’s layoff seniority and layoff seniority unit , it is critical that the following be maintained accurately in Workday:

  • Job description: whether an employee is qualified to bump into a position will be based on the job description.
  • Company service date: This date is set by HCM Operations or the UW Medicine HR WMS team.
  • Layoff seniority unit: This value is a custom organization set by the HR Partner or Academic Partner. Layoff seniority units are specific to both the union and the major org of the position and, are configured to be set on all represented positions in Workday even if layoff seniority is not provided for in the collective bargaining agreement.

Setting the layoff seniority unit

Beginning mid-July 2025, HR or Academic Partners will be asked to:

  • Identify the position’s layoff seniority unit in the Change Organization Assignments for Worker business process (which is triggered during the Create Position, Edit Position, and Edit Position Restrictions business processes).
  • Search for either the position’s major org or union, and
  • Select the layoff unit that best reflects the position’s major org/unit and union combination. While most layoff units are at the major org level, some are more granular.

List of contract covered layoff seniority units

Collective Bargaining Unit Layoff Seniority Unit Workday Name
SEIU 925 PRES: Ombud and AAG (SEIU 925)
SEIU 925 VPR: Applied Physics Laboratory (APL) (SEIU 925)
SEIU 925 PROV, VPR, GRAD, CC, APF, UAA, ROTC (SEIU 925)
SEIU 925 UWB (SEIU 925)
SEIU 925 UWT (SEIU 925)
SEIU 925 LIB (excluding LIB: Law) (SEIU 925)
SEIU 925 FPB (SEIU 925)
SEIU 925 UWF (SEIU 925)
SEIU 925 UW-IT: VP & CIO (SEIU 925)
SEIU 925 MA (SEIU 925)
SEIU 925 SL, UA, ICA, EXT (SEIU 925)
SEIU 925 ENV (excluding APL) (SEIU 925)
SEIU 925 ENG (SEIU 925)
SEIU 925 CBE, LIB, LAW: Library, EVANS, FSB, ED, SSW (SEIU 925)
SEIU 925 HSA: HSS (SEIU 925)
SEIU 925 DENT, NURS, PHARM, SPH (SEIU 925)
SEIU 925 UW MED: MCSS - PRES, UWMHS (SEIU 925)
SEIU 925 UW MED: MCSS- CFO, UWMHS (SEIU 925)
SEIU 925 UW MED: HMC (SEIU 925)
SEIU 925 UW MED (SEIU 925)
SEIU 926 UW MED: FPPS (SEIU 925)
SEIU 927 UW MED: ALNW (SEIU 925)
SEIU 925 SOM: Basic Sciences Depts (SEIU 925)
SEIU 925 SOM: Clinical Depts (SEIU 925)
SEIU 925 SOM: DEANS (SEIU 925)
SEIU 925 SOM, SPH: Global Health (SEIU 925)
SEIU 925 Special Employment Programs (SEIU 925)
SEIU 925 CAS: Humanities (SEIU 925)
SEIU 925 CAS: Social Sciences (SEIU 925)
SEIU 925 CAS: Natural Sciences (SEIU 925)
SEIU 925 CAS: Biology, Philosophy, Speech & Hearing Sciences (SEIU 925)
SEIU 925 CAS: Dean's office and Burke Museum (SEIU 925)
SEIU 925 HR (SEIU 925)
SEIU 925 ISCHL: Information School (SEIU 925)
SEIU 925 PRES: DCCS (SEIU 925)
SEIU 925 IHME SOM: IHME (SEIU 925 IHME)
SEIU 925 Libraries LIB: Seattle Campus (SEIU 925 Libraries)
SEIU 925 Libraries LIB: UWB (SEIU 925 Libraries)
SEIU 925 Libraries LIB: UWT (SEIU 925 Libraries)
SEIU 925 Libraries LIB: Network of the National Library of Medicine (SEIU 925 Libraries)
SEIU 925 Libraries LIB: Gallagher Law Library (SEIU 925 Libraries)
SEIU 925 Libraries LIB: UW Press (SEIU 925 Libraries)
WFSE Police Management DCCS: UW Police Dept (UWPD) (WFSE Police Management)
WFSE Primary PRES: Ombud and AAG (WFSE Primary)
WFSE Primary Applied Physics Laboratory (APL) (WFSE Primary)
WFSE Primary PROV, VPR, GRAD, EO, EOAA, UAA, ROTC, UWB, UWT, EH&S, Primate (WFSE Primary)
WFSE Primary LIB (excluding LIB: Law) (WFSE Primary)
WFSE Primary FPB: Finance, Planning & Budgeting
Creative Communications (WFSE Primary)
WFSE Primary UWF (WFSE Primary)
WFSE Primary UW-IT (WFSE Primary)
WFSE Primary MA (WFSE Primary)
WFSE Primary SL, UA, ICA, EXT (WFSE Primary)
WFSE Primary CAS (WFSE Primary)
WFSE Primary ENV (WFSE Primary)
WFSE Primary ENG (WFSE Primary)
WFSE Primary CBE, LIB, LAW: Library, EVANS, SSW, FBS, ED (WFSE Primary)
WFSE Primary DENT, NURS, PHARM, SPH (WFSE Primary)
WFSE Primary UW MED: Shared Services (WFSE Primary)
WFSE Primary UW MED: HMC (WFSE Primary)
WFSE Primary UW MED: UWMC (WFSE Primary)
WFSE Primary SOM (incl VPMA) (WFSE Primary)
WSNA Montlake UWMC Montlake: Acute care (WSNA Montlake)
WSNA Montlake UWMC Montlake: Critical care (WSNA Montlake)
WSNA Montlake UWMC Montlake: Surgical Services (WSNA Montlake)
WSNA Montlake UWMC Montlake: Clinics (WSNA Montlake)
WSNA Northwest UWMC Northwest: Inpatient & Specialty Care (WSNA Northwest)
WSNA Northwest UWMC Northwest: Critical & Emergency Care (WSNA Northwest)
WSNA Northwest UWMC Northwest: Surgical & Procedural Services (WSNA Northwest)
WSNA Northwest UWMC Northwest: Primary Care Clinic (WSNA Northwest)
WSNA Northwest UWMC Northwest: Medical/Surgical Specialty Clinics (WSNA Northwest)
SEIU 1199 UW MED: HMC - Professional/Technical Unit (SEIU 1199 HMC/ALNW)
SEIU 1199 UW MED: HMC - Imaging Technologist Supervisor (SEIU 1199 HMC/ALNW)
SEIU 1199 UW MED: HMC - Pharmacy Technicians (SEIU 1199 HMC/ALNW)
SEIU 1199 UW MED: HMC - Dieticians (SEIU 1199 HMC/ALNW)
SEIU 1199 UW MED: HMC - Social Work (SEIU 1199 HMC/ALNW)
SEIU 1199 UW MED: HMC - Speech Language Pathologists (SEIU 1199 HMC/ALNW)
SEIU 1199 UW MED: HMC - Respiratory Therapy (SEIU 1199 HMC/ALNW)
SEIU 1199 UW MED: HMC - Respiratory Care (SEIU 1199 HMC/ALNW)
SEIU 1199 UW MED: HMC -Anesthesiology Technicians (SEIU 1199 HMC/ALNW)
SEIU 1199 UW MED: HMC -Electroneurodiagnostic Technologists (SEIU 1199 HMC/ALNW)
SEIU 1199 UW MED: HMC -PA-ARNPs (SEIU 1199 HMC/ALNW)
SEIU 1199 UW MED: ALNW (SEIU 1199 HMC/ALNW)
SEIU 1199 UW MED: HMC -Registered Nurses (SEIU 1199 HMC/ALNW)
SEIU 1199 Research/HH NURS (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SL: Husky Health, PRES: Env Health & Safety (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SPH (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Anesthesiology and Pain Medicine (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Biochemistry (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Bioengineering (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Bioethics and Humanities (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Biological Structure (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Biomedical Informatics and Medical Education (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Comparative Medicine (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Family Medicine (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Genome Sciences (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Global Health (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Immunology (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Laboratory Medicine (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: MEDEX Northwest (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Microbiology (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Neurological Surgery (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Neurology (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Obstetrics and Gynecology (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Ophthalmology (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Orthopedics and Sports Medicine (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Otolaryngology / Head and Neck Surgery (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Pathology (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Pediatrics (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Pharmacology (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Physiology and Biophysics (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Psychiatry and Behavioral Sciences (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Radiation Oncology (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Radiology (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Rehabilitation Medicine (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Surgery (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Urology (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Emergency Medicine (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Health Metrics (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Department of Medicine: Allergy and Infectious Disease (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Department of Medicine: Cardiology (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Department of Medicine: Dermatology (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Department of Medicine: Gastroenterology (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Department of Medicine: General Internal Medicine (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Department of Medicine: Gerontology and Geriatric Medicine (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Department of Medicine: Hematology (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Department of Medicine: Medical Genetics (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Department of Medicine: Metabolism, Endocrinology and Nutrition (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Department of Medicine: Nephrology (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Department of Medicine: Oncology (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Department of Medicine: Pulmonary, Critical Care and Sleep Medicine (SEIU 1199 Research/HH)
SEIU 1199 Research/HH SOM: Department of Medicine: Rheumatology (SEIU 1199 Research/HH)
SEIU 1199 UWMC-NW UW MED: UWMC - NW: Nursing Departments (SEIU 1199 UWMC-NW)
SEIU 1199 UWMC-NW UW MED: UWMC - NW: Medical Records (SEIU 1199 UWMC-NW)
SEIU 1199 UWMC-NW UW MED: UWMC - NW: Admitting/Admit ER (SEIU 1199 UWMC-NW)
SEIU 1199 UWMC-NW UW MED: UWMC - NW: Laboratory/Outreach Phlebotomy (SEIU 1199 UWMC-NW)
SEIU 1199 UWMC-NW UW MED: UWMC - NW: All Departments, except Nursing - Administrative Assistants (SEIU 1199 UWMC-NW)
SEIU 1199 UWMC-NW UW MED: UWMC - NW: Other by job class and dept (SEIU 1199 UWMC-NW)
IBU Inlandboatmen's Union (IBU)
Teamsters 117 Print Plant Craft Employees Print Plant (Teamsters 117 PP)
UAW-ASEs UAW Academic student employees (UAW-ASEs)
Post Docs UAW Postdoctoral Scholars
UAW-RSE UAW Research scientist engineers (UAW-RSE)
Teamsters 117 DCCS: UW Police Dept (UWPD) (Teamsters 117)
AFT American Federation of Teachers (AFT)
RFPU Resident and Fellow Physician Union (RFPU)
SAG-AFTRA EXT: KUOW (SAG-AFTRA)

If you have questions about which layoff seniority unit to select, please contact your Named Support Contact.