The successful Proposer (Service Provider) will be expected to regularly and continuously do all the following during the term of this agreement with Butler County: 1. To the extent that is related to payments covered by the contract, shall be subject to examination by the auditor of state to the same extent as if the services the financial institution has agreed to perform were being performed by the treasurer. 2. Establish and maintain a unique mail lockbox address to which BCWS payments can be sent via regular U.S. Mail. 3. Provide that all envelopes containing items to be processed under the BCWS lockbox mail collection service will bear the BCWS number and/or a unique zip code number. 4. Collect BCWS lockbox mail from the post office five (5) to seven (7) times daily, Monday through Friday and once on Saturday and Sunday.