Supporting information
Supporting information includes the information we rely on to perform the calculations gathered on the Pension funding section.
This page provides access to:
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Current and historical information about plan participants, Key benefit provisions by plan,
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A thorough list of assumptions and methods, both for the stand-alone valuations and any projections we prepare, and
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Historical economic information, including past investment returns of the pension trust fund and regional inflation.
- Active membership by employer
Data on active membership for the WA state public pension systems.
- Actuarial assumptions
This page describes the actuarial assumptions used in the valuation process.
- Actuarial methods
This page describes the actuarial methods used in the valuation process.
- Age distributions
The following information present membership distributions by age, based on the June 30, 2023 Actuarial Valuation Report, for the following Washington State public pension systems:
- Historical valuation data
Data used for the actuarial valuation reports produced by the Office of the State Actuary.
- Inflation data
Historical Consumer Price Index (CPI) data
- Projections model assumptions and methods
Summarizes the assumptions and methods for the Office of the State Actuary’s 2023 Valuation Projections Model.
- Return on investment
Historical commingled trust fund performance
- Summary of plan provisions
High-level summaries of plan provisions for the WA state public pension systems.