Specifications include, but are not limited to: FOR QUARTERLY MAINTENANCE A. A logbook will be kept on-site for each piece of equipment to be maintained by the Contractor. The logbook shall contain the date each quarterly maintenance was performed. B. The frequency of quarterly maintenance shall be no more than ninety (90) days between services, with the first service to be conducted within thirty (30) days of contract execution. C. Contractor shall schedule the date and time the service is to be performed with the CHP on-site contact one (1) week prior to service. Contractor will check in with CHP on-site contact upon arrival and check out when the work is completed. D. All invoices must be sent with the appropriate accompanying documents to the CHP on-site contact for approval. Invoices must be legible, provide the date of service, and must be itemized or they will be disputed. If there are any discrepancies on the invoice concerning hours worked, the CHP will refer to the sign-in sheet to confirm actual hours at the facility. Invoices not on pre-printed bill heads shall be signed by Contractor furnishing the service.
