18-1-302. Servicing of deposited obligations. After notice to the owner and surety, the contracting agency shall have the power to enter into a contract or agreement with any national bank, state bank, trust company, or safe deposit company located in the state of Montana, designated by the contractor, to provide for the custodial care and servicing of any obligations deposited with it pursuant to this part. Such services shall include the safekeeping of said obligations and the rendering of all services required to effectuate the purposes of this part.