Washington Revised Code Title 39. Public Contracts and Indebtedness § 39.96.040. Terms and conditions

(b)(i) The other party to the agreement has a rating from at least two nationally recognized credit rating agencies, as of the date of execution of the agreement, that is within the three highest long-term investment grade rating categories, without regard to subcategories, or the payment obligations of the party under the agreement are unconditionally guaranteed by an entity that has the required ratings; and

(ii) The payment obligations of the other party under the agreement are collateralized by direct obligations of, or obligations the principal and interest on which are guaranteed by, the United States of America, that (A) are deposited with the governmental entity or an agent of the governmental entity; and (B) maintain a market value of not less than one hundred two percent of the net market value of the payment agreement to the governmental entity, as such net market value may be defined and determined from time to time under the terms of the payment agreement.