Method of Billing Consultant may submit invoices to the City for approval on a progress basis, but no more often than two times a month. Said invoice shall be based on the total of all Consultant’s services which have been completed to City’s sole satisfaction. City shall pay Consultant’s invoice within forty-five (45) days from the date City receives said invoice. Each invoice shall describe in detail, the services performed, the date of performance, and the associated time for completion. Any additional services approved and performed pursuant to this Agreement shall be designated as “Additional Services” and shall identify the number of the authorized change order, where applicable, on all invoices.
Method of Notice All notices shall be given (i) by delivery in person (ii) by a nationally recognized next day courier service, (iii) by first class, registered or certified mail, postage prepaid, (iv) by facsimile, or (v) by electronic mail] to the address of the OETC Contract Administrator or Contractor's Contract Coordinator or such other address as either party may specify in writing.