Wash. Rev. Code § 70.15.090
The department may promulgate rules to implement this chapter. In doing so, the department shall consult with and consider the recommendations of the state military department as the agency established to carry out the state's program for emergency management, and coordinate the implementation of the emergency management assistance compact with the state military department to ensure conformity with the state's program for emergency management and the coordination of all response activities through the state's emergency operations center during a state of emergency. The department shall also consult with and consider rules promulgated by similarly empowered agencies in other states to promote uniformity of application of this chapter and make the emergency response systems in the various states reasonably compatible.
RCW 70.15.090