Washington Revised Code Title 48. Insurance § 48.39.010. Notice of material amendments to contract--Failure to comply

(1) A third-party payor shall provide no less than sixty days' notice to the health care provider of any proposed material amendments to a health care provider's contract with the third-party payor.

(2) Any material amendment to a contract must be clearly defined in a notice to the provider from the third-party payor as being a material change to the contract before the provider's notice period begins. The notice must also inform the providers that they may choose to reject the terms of the proposed material amendment through written or electronic means at any time during the notice period and that such rejection may not affect the terms of the health care provider's existing contract with the third-party payor.

(3) A health care provider's rejection of the material amendment does not affect the terms of the health care provider's existing contract with the third-party payor.

(4) A failure to comply with the terms of subsections (1), (2), and (3) of this section shall void the effectiveness of the material amendment.