Hazardous materials emergency assistance agreements which are executed prior to a hazardous materials incident shall include the following terms and conditions:
It is the responsibility of both parties to ensure that mutually agreeable procedures are established for identifying the incident command agency when assistance is requested, for recording the name of the person or public agency whose assistance is requested, and the time and date of the request, which records shall be retained for three years by the incident command agency. A copy of the official incident command agency designation shall be a part of the assistance agreement specified in this section.
RCW 70.136.060