A. ASRS shall establish a separate fund for an employer, other than a charter school, that is no longer participating in ASRS as a result of any of the following:

1. 1. The character of the employer changes from a public entity to a private entity.
2. 2. An employer, other than this state, dissolves.
3. 3. Through legislative action, the employer is no longer enrolling new employees in ASRS or no longer contributing to ASRS on behalf of current employees or groups of employees who otherwise would be eligible for ASRS membership.

B. For a nonparticipating employer described in subsection A of this section, ASRS shall allocate an actuarial accrued liability and a designated asset amount to the nonparticipating employer's separate fund as of the nonparticipation date, which shall be calculated as follows:

1. 1. The actuarial accrued liability shall equal the sum of the plan employer actuarial accrued liability and the LTD program employer actuarial accrued liability. Actuarial accrued liability shall be calculated based on the same actuarial assumptions and methods as the actuarial valuation performed immediately preceding the nonparticipating employer's nonparticipation date.

2. 2. The designated asset amount shall equal the sum of the following:

   1. (a) The plan employer actuarial accrued liability multiplied by the plan funded percentage.
   2. (b) The LTD program employer actuarial accrued liability multiplied by the LTD program funded percentage.

D. After establishing the nonparticipating employer's separate fund, the fund shall be adjusted for all of the following:

1. 1. All contributions made by employees of the nonparticipating employer.
2. 2. All contributions made by the nonparticipating employer.
3. 3. All plan, all LTD program and any other benefits paid to the nonparticipating employer's members who are active, inactive, retired or on long-term disability.
4. 4. All plan, all LTD program and any other benefits paid to the survivors of the nonparticipating employer's members.
5. 5. The applicable share of the investment gains and losses.
6. 6. Expenses associated with the administration of the nonparticipating employer's separate fund, including any administrative, development, actuarial, legal, custodial and investment management costs associated with the fund. These expenses shall be paid directly by the nonparticipating employer or included in the employer's liability for the purposes of determining the employer's contribution rate.

E. After establishing the nonparticipating employer's separate fund, the nonparticipating employer and any employees of that employer who are enrolled in ASRS shall continue to have contribution requirements to the nonparticipating employer's separate fund. The contribution requirements shall be calculated as follows:

1. 1. All employees of the nonparticipating employer who are enrolled in ASRS shall continue to make contributions through payroll deductions based on the contribution rate determined for the employees of participating employers of ASRS pursuant to section 38-736.

2. 2. The nonparticipating employer shall continue to make contributions through lump sum payments in accordance with section 38-735, equal to the sum of:

   1. (a) Contributions owed through payroll deductions based on the contribution rate determined for participating employers pursuant to section 38-737.
   2. (b) The amount required to amortize the past service funding requirement in the nonparticipating employer's separate fund over a period that is determined by the board and that is consistent with generally accepted actuarial standards. In determining the past service funding period, the board shall seek to improve the funded status whenever the nonparticipating employer's separate fund is less than one hundred percent funded.

J. For the purposes of this section:

1. 1. "LTD program" means the program established by article 2.1 of this chapter.
2. 2. "LTD program employer actuarial accrued liability" means the actuarial accrued liability for the employer's active and inactive members and the open LTD program claims for the employees of the employer as of the nonparticipation date.
3. 3. "LTD program funded percentage" means the total market value of LTD program assets divided by the total LTD program actuarial accrued liabilities, as of the actuarial valuation performed immediately preceding the nonparticipation date. If the percentage is greater than one hundred percent, the LTD program funded percentage is one hundred percent.
4. 4. "Nonparticipation date" means the date on which the employer is no longer participating in ASRS.
5. 5. "Plan" means the retirement plan established by this article.
6. 6. "Plan employer actuarial accrued liability" means the plan's actuarial accrued liability for all benefits provided under this article, including benefits established in section 38-783, for the employer's active, inactive or retired members as of the actuarial valuation performed immediately preceding the nonparticipation date.
7. 7. "Plan funded percentage" means the plan's total market value of assets divided by the plan's actuarial accrued liability for all benefits provided under this article, including benefits established in section 38-783, for all active, inactive or retired members as of the actuarial valuation performed immediately preceding the nonparticipation date. If the percentage is greater than one hundred percent, the plan funded percentage is one hundred percent.