Washington Revised Code Title 22. Warehousing and Deposits § 22.28.030. Exercise of due care required

Whenever any safe deposit company shall let or lease any vault, safe, box or other receptacle for the keeping or storage of personal property such safe deposit company shall be bound to exercise due care to prevent the opening of such vault, safe, box or receptacle by any person other than the lessee thereof, or his or her duly authorized agent, and the parties may provide in writing the terms, conditions, and liabilities in the lease. Authorized agent as used in this section includes, but is not limited to, a duly appointed personal representative, an attorney-in-fact, a special representative, or a trustee acting under a revocable living trust.