(1) A tank barge used solely as an oil spill response barge is not required to possess evidence of financial responsibility under RCW 88.40.020 if the owner or operator submits to the office a letter certifying that:

(a) The barge is used exclusively for oil spill response activities and will not be used to carry oil in bulk as cargo;

(b) The owner or operator is an approved response contractor under WAC 317-10-090; and

(c) The owner or operator is indemnified by plan holders for whom the owner or operator is a primary response contractor for liabilities that may arise under state and federal law.

(2) The letter must be in writing, on letterhead and signed by the chief executive officer of the owner or operator, or authorized representative. Identifying information for each tank barge covered by the letter must be provided and include at least the vessel's name, Lloyd's number or official number, country of registry, and gross tonnage.

(3) Any change in status of ownership, charter arrangement, classification, or use must be reported to the office within 10 working days of the change.