(1) In addition to the requirements under RCW 48.125.030, self-funded multiple employer welfare arrangements are subject to the following requirements:

(a) Arrangements must maintain a calendar year for operations and reporting purposes;

(b) Arrangements must satisfy one of the following requirements:

(i)(A) The arrangement must deposit two hundred thousand dollars with the commissioner to be used for the payment of claims in the event that the arrangement becomes insolvent; and

(B) The arrangement must submit to the commissioner a written plan of operation that, in the reasonable discretion of the commissioner, ensures the financial integrity of the arrangement; or

(ii) The arrangement demonstrates to the reasonable satisfaction of the commissioner the ability of the arrangement to remain financially solvent, for which purpose the commissioner may consider:

(A) The pro forma financial statements of the arrangement;

(B) The types and levels of excess of loss insurance coverage, including the attachment points of the coverage and whether the points are reflected as annual or monthly levels;

(C) Whether a deposit is required for each employee covered under the arrangement equal to at least one month's cost of providing benefits under the arrangement;

(D) The experience of the individuals who will be involved in the management of the arrangement, including employees, independent contractors, and consultants; and

(E) Other factors as reasonably determined by the commissioner to be relevant to a determination of whether the arrangement is able to operate in a financially solvent manner.

(2) The commissioner may require that the articles, bylaws, agreements, trusts, or other documents or instruments describing the rights and obligations of the employers, employees, and beneficiaries of the arrangement provide that employers participating in the arrangement are subject to pro rata assessment for all liabilities of the arrangement.

(3) Self-funded multiple employer welfare arrangements with fewer than one thousand covered persons are required to have aggregate stop loss coverage, with an attachment point of one hundred twenty-five percent of expected claims. If the arrangement is allowed to assess the participating employers to cover actual or projected claims in excess of plan assets, then the attachment point shall be increased by the amount of the allowable assessments. If the required attachment point exceeds one hundred seventy-five percent of expected claims, aggregate stop loss coverage shall be waived. Arrangements with one thousand covered persons or more are not required to have aggregate stop loss coverage.

(4) The arrangement must demonstrate continued compliance with respect to the conditions set forth in this section as a condition of receiving and maintaining a certificate of authority. The commissioner may waive continued compliance with respect to the conditions in this section at any time after the commissioner has granted a certificate of authority to an arrangement.