Washington Revised Code Title 41. Public Employment, Civil Service, and Pensions § 41.45.150. Unfunded liabilities--Employer contribution rates

(4)(a) Beginning July 1, 2023, and ending June 30, 2027, the following employer contribution rates shall be in effect for the public employees' retirement system and the public safety employees' retirement system that is used for the sole purpose of amortizing that portion of the unfunded actuarial accrued liability in the public employees' retirement system plan 1 that excludes any amounts required to amortize plan 1 benefit improvements effective after June 30, 2009.

(b) Beginning July 1, 2027, a minimum 0.50 percent contribution is established as part of the basic employer contribution rate for the public employees' retirement system and the public safety employees' retirement system, to be used for the sole purpose of amortizing any portion of an unfunded actuarial accrued liability in the public employees' retirement system plan 1 that excludes any amounts required to amortize plan 1 benefit improvements effective after June 30, 2009. This minimum contribution rate shall be in effect when the actuarial value of assets in plan 1 of the public employees' retirement system is less than 100 percent of the actuarial accrued liability.

(5)(a) Beginning September 1, 2023, and ending August 31, 2027, the following employer contribution rates shall be in effect for the school employees' retirement system that is used for the sole purpose of amortizing that portion of the unfunded actuarial accrued liability in the public employees' retirement system plan 1 that excludes any amounts required to amortize plan 1 benefit improvements effective after June 30, 2009.

(b) Beginning September 1, 2027, a minimum 0.50 percent contribution is established as part of the basic employer contribution rate for the school employees' retirement system, to be used for the sole purpose of amortizing any portion of an unfunded actuarial accrued liability in the public employees' retirement system plan 1 that excludes any amounts required to amortize plan 1 benefit improvements effective after June 30, 2009. This minimum contribution rate shall be in effect when the actuarial value of assets in plan 1 of the public employees' retirement system is less than 100 percent of the actuarial accrued liability.

(6)(a) Beginning September 1, 2023, and ending August 31, 2027, the following employer contribution rates shall be in effect for the teachers' retirement system that is used for the sole purpose of amortizing that portion of the unfunded actuarial accrued liability in the teachers' retirement system plan 1 that excludes any amounts required to amortize plan 1 benefit improvements effective after June 30, 2009.

(b) Beginning September 1, 2027, a minimum 0.50 percent contribution is established as part of the basic employer contribution rate for the teachers' retirement system, to be used for the sole purpose of amortizing any portion of an unfunded actuarial accrued liability in the teachers' retirement system plan 1 that excludes any amounts required to amortize plan 1 benefit improvements effective after June 30, 2009. This minimum contribution rate shall be in effect when the actuarial value of assets in plan 1 of the teachers' retirement system is less than 100 percent of the actuarial accrued liability.