The CONSULTANT shall submit invoices to the LPA on a monthly basis for services rendered. In no event shall the total of the CONSULTANT's invoices exceed the amount provided in this Appendix "D" without prior approval as provided elsewhere in this Contract.

The LPA shall pay the CONSULTANT for said invoices within thirty (30) calendar days for CONSULTANT's services.

2.1The CONSULTANT may submit a maximum of one invoice voucher per calendar month for work covered under this Contract. The invoice vouchers shall be submitted to the LPA.

The invoice vouchers shall represent the value, to the LPA, of the partially completed work as of the date of the invoice voucher. When submitting an invoice, the CONSULTANT shall furnish a copy of records showing the individuals who worked on the Contract during the month, their classification, the number of hours worked since the last invoice voucher was submitted, and the hourly rate.

If the LPA does not agree with the amount claimed by the CONSULTANT on an invoice voucher, the LPA will send the CONSULTANT a letter by regular mail and list the differences between actual and claimed progress. The letter will be sent to the CONSULTANTS' address listed in Section VI, General Provisions, item 23, Notices to Parties, of this Contract or the CONSULTANTS' last known address.

If, prior to the satisfactory completion of the services under this Contract, the total of costs incurred by the CONSULTANT is within ten percent (10%) of the maximum amount payable, the CONSULTANT shall notify INDOT and the LPA and the status will be evaluated.

The CONSULTANT shall submit to INDOT and the LPA a list of personnel, along with job classification and salary, the firm is planning to use on work covered by this Contract. No additions in personnel or changes in personnel salaries shall be effective for purpose of the Contract until approved by INDOT and the LPA.