Wash. Rev. Code § 51.36.060
Physicians or licensed advanced registered nurse practitioners examining or attending injured workers under this title shall comply with rules and regulations adopted by the director, and shall make such reports as may be requested by the department or self-insurer upon the condition or treatment of any such worker, or upon any other matters concerning such workers in their care. Except under RCW 49.17.210 and 49.17.250, all medical information in the possession or control of any person and relevant to the particular injury in the opinion of the department pertaining to any worker whose injury or occupational disease is the basis of a claim under this title shall be made available at any stage of the proceedings to the employer, the claimant's representative, and the department upon request, and no person shall incur any legal liability by reason of releasing such information.
RCW 51.36.060
Report to legislature-Effective date-Severability-2004 c 65: See notes following RCW 51.04.030.
Effective date-1975 1st ex.s. c 224: See note following RCW 51.04.110.
Effective dates-Severability-1971 ex.s. c 289: See RCW 51.98.060 and 51.98.070.