Actuarial valuations are technical reports providing full disclosure of the financial and funding status of public retirement systems administered by the Department of Retirement Systems.  Valuations for odd-numbered years are also used to set contribution rates for the ensuing biennium.  For those valuations, the Pension Funding Council oversees an actuarial audit of the results by an outside actuary. 

OSA also performs annual valuations of the Volunteer Fire Fighters’ and Reserve Officers’ Relief and Pension Fund Act (RCW 41.24), which is administered by the Board for Volunteer Fire Fighters and Reserve Officers.  Its valuation is published separately.

The California Research Bureau (CRB) provides a plain language primer that summarizes and explains the actuarial methods and practices used by OSA when preparing the annual actuarial valuations. Here is a link to the report PDF.

The 2018 Actuarial Valuation is on the Historical Valuations page.

Please note the impacts of COVID-19 are not reflected in the 2019 Actuarial Valuation. More information can be found on our dedicated webpage, COVID-19 and its Impacts to the Washington State Retirement Systems.

2019 Actuarial Valuation

2019 Actuarial Valuation [260 kb]

2019 Actuarial Audit Report [1615 kb]

PDF Icon Letter of Introduction [156 kb]

 Section One:  PDF Icon Summary of Key Results [250 kb]

 Section Two:  PDF Icon Actuarial Exhibits [754 kb]

PDF Icon Certification Letter [187 kb]

PDF Icon Contribution Rates [250 kb]

PDF Icon Actuarial Liabilities [260 kb]

PDF Icon Plan Assets [226 kb]

PDF Icon Funded Status [170 kb]

PDF Icon Actuarial Gains-Losses [164 kb]

 Section Three: PDF IconParticipant Data [546 kb]

 Section Four:  PDF Icon Appendices [314 kb]

PDF Icon Actuarial Methods/Assumptions [122 kb]

PDF Icon Summary of Plan Provisions [237 kb]

Age Distributions

Historical Data


Law Enforcement Officers' and Fire Fighters' Retirement System Plan 2

This link provides access to the 2019 LEOFF 2 Actuarial Valuation Report PDF, posted on the LEOFF 2 website. 

Volunteer Fire Fighters' and Reserve Officers' Retirement System

2019 Volunteer Fire Fighters Relief and Pension Fund Valuation [2046 kb] PDF Icon

The 2018 VFF AVR is on the Historical Valuations page.

2021 Volunteer Fire Fighters Pension Experience Study [7193 kb] PDF Icon

2018 Volunteer Fire Fighters Relief Experience Study [8965 kb] PDF Icon

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Last Reviewed: 04/27/2021

Last Updated: 04/27/2021