There are no intended third-party beneficiaries of this agreement, the Services, or the engagement. Amounts past due under this agreement shall accrue interest at the rate of 18% per year, or the maximum rate allowed by law, whichever is less. Client shall pay (or if BPC pays, reimburse BPC for) any applicable sales, use or similar tax imposed in connection with any sale of goods or services by BPC to Client. This agreement supersedes any prior agreement, understanding, or representation between BPC and Client, and can only be modified by a written document signed by BPC and Client.