Wash. Rev. Code § 47.68.350
The secretary may require owners, operators, lessees, or others having the control or management of structures or obstacles over one hundred fifty feet above ground or water level and that are or may become a hazard to air flight to report the location of the existing or proposed structures or obstacles to the department. For that purpose the secretary may issue subpoenas and subpoenas duces tecum returnable within twenty days to the department. If a person refuses to obey the secretary's subpoena, the department may certify to the superior court all facts of the refusal. The court shall summarily hear evidence on the refusal, and, if the evidence warrants, punish the person refusing in the same manner and to the same extent as a contempt committed before the court.
RCW 47.68.350